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You are currently viewing the MalwareBazaar entry for SHA256 7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


RemcosRAT


Vendor detections: 13


Intelligence 13 IOCs YARA 46 File information Comments
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SHA256 hash: 7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132
SHA3-384 hash: 7eac146c270aa41fa255911b7b74a98046a7783a8ada400f74c353448cddb89510869bfab5484ba342e234f25c9dfe33
SHA1 hash: 57f865099dd01b2f2d0957cda3fe33d3b62dfd0d
MD5 hash: 8f0c8793533770af87ae80d34f6fd580
humanhash: glucose-nineteen-april-stream
File name:IMG-202508-WA0008.js
Download: download sample
Signature RemcosRAT
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File size:2'113'208 bytes
First seen:2025-09-05 15:12:54 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:AmSFUR/5lo71iKsDKjuhNg8pZZlZbPpSb7XLiSFgZZwj3eIwn0SX5+oZoBpW790Z:5h5lo71iKrgKYZbBiijIcp/oKRzBhin
Threatray 251 similar samples on MalwareBazaar
TLSH T1D4A5E1328D56BC4D2BEC148984CF3DC51D6E1F9741746AD499AEF2B32289D118EEC8BC
Magika vba
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
SE SE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.PUA.Base64EXE-1.UNOFFICIAL
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Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68bafe20eb163e0ec1849192
Tags:
delphi emotet
Verdict:
Malicious
Labled as:
GT:JS.Cbum.1.25F49B73;Gen:Zusy
Link:
https://www.hybrid-analysis.com/sample/7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132
Verdict:
Malicious
File Type:
js
First seen:
2025-09-04T20:50:00Z UTC
Last seen:
2025-09-04T20:50:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.Stealer.sb Exploit.Win32.BypassUAC.sb Backdoor.Win32.Remcos.e PDM:Trojan.Win32.Generic Trojan.JS.SAgent.sb Backdoor.Win32.Remcos.sb Trojan.Win64.Zenpak.sb Trojan.Win32.Shellcode.sb Trojan-Spy.Win32.Xegumumune.sbc Trojan-Dropper.Win32.Agent.sb HEUR:Trojan-Spy.MSIL.Noon.gen HEUR:Trojan-PSW.MSIL.DarkCloud.gen Backdoor.Win32.Remcos.f Trojan-Dropper.JS.SDrop.sb Trojan-Downloader.JS.Cryptoload.sb Trojan-Spy.Win32.Stealer.sb Trojan-Dropper.Win32.Injector Trojan-Dropper.Win32.Dapato.sb Backdoor.Remcos.HTTP.C&C HEUR:Trojan.Win32.DelfInject.gen HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic
Link:
https://opentip.kaspersky.com/7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132/results?tab=lookup
Result
Threat name:
Remcos, DBatLoader, DarkCloud, PureLog S
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Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1771894
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates many large memory junks
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Drops VBS files to the startup folder
Early bird code injection technique detected
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
JavaScript file contains suspicious strings
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Drops script at startup location
Sigma detected: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected DarkCloud
Yara detected DBatLoader
Yara detected Generic Dropper
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected ResolverRAT
Yara detected Telegram RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1771894 Sample: IMG-202508-WA0008.js Startdate: 05/09/2025 Architecture: WINDOWS Score: 100 90 vestcast.co 2->90 92 showip.net 2->92 94 geoplugin.net 2->94 140 Suricata IDS alerts for network traffic 2->140 142 Found malware configuration 2->142 144 Malicious sample detected (through community Yara rule) 2->144 146 25 other signatures 2->146 10 wscript.exe 1 2 2->10         started        14 wscript.exe 2->14         started        16 rundll32.exe 3 2->16         started        18 wscript.exe 2->18         started        signatures3 process4 file5 74 C:\Users\user\AppData\Local\Temp\x.exe, PE32 10->74 dropped 168 Benign windows process drops PE files 10->168 170 JScript performs obfuscated calls to suspicious functions 10->170 172 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->172 20 x.exe 6 10->20         started        24 Key.exe 14->24         started        26 Sjszrehd.exe 16->26         started        28 IsInvalid.exe 18->28         started        signatures6 process7 file8 72 C:\Users\Public\...\Sjszrehd.exe (copy), PE32 20->72 dropped 152 Antivirus detection for dropped file 20->152 154 Multi AV Scanner detection for dropped file 20->154 156 Early bird code injection technique detected 20->156 166 3 other signatures 20->166 30 SndVol.exe 2 12 20->30         started        35 cmd.exe 3 20->35         started        37 cmd.exe 1 20->37         started        45 2 other processes 20->45 39 InstallUtil.exe 24->39         started        158 Allocates memory in foreign processes 26->158 160 Allocates many large memory junks 26->160 41 SndVol.exe 26->41         started        162 Writes to foreign memory regions 28->162 164 Injects a PE file into a foreign processes 28->164 43 InstallUtil.exe 28->43         started        signatures9 process10 dnsIp11 100 geoplugin.net 178.237.33.50, 49692, 80 ATOM86-ASATOM86NL Netherlands 30->100 102 vestcast.co 147.124.215.99, 2490, 49687, 49688 AC-AS-1US United States 30->102 76 C:\Users\user\AppData\Roaming\dwn.exe, PE32 30->76 dropped 78 C:\Users\user\AppData\Local\Temp\dwn.exe, PE32 30->78 dropped 80 C:\ProgramData\remcos\logs.dat, data 30->80 dropped 104 Detected Remcos RAT 30->104 106 Contains functionalty to change the wallpaper 30->106 108 Contains functionality to steal Chrome passwords or cookies 30->108 120 6 other signatures 30->120 47 dwn.exe 30->47         started        51 dwn.exe 30->51         started        53 SndVol.exe 1 30->53         started        64 3 other processes 30->64 110 Uses ping.exe to sleep 35->110 112 Uses ping.exe to check the status of other devices and networks 35->112 55 conhost.exe 35->55         started        57 PING.EXE 1 37->57         started        60 conhost.exe 37->60         started        114 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 39->114 116 Tries to steal Mail credentials (via file / registry access) 39->116 118 Tries to harvest and steal browser information (history, passwords, etc) 39->118 62 conhost.exe 45->62         started        file12 signatures13 process14 dnsIp15 82 C:\Users\user\AppData\Roaming\Key.exe, PE32 47->82 dropped 84 C:\Users\user\AppData\Roaming\...\Key.vbs, ASCII 47->84 dropped 122 Antivirus detection for dropped file 47->122 124 Multi AV Scanner detection for dropped file 47->124 126 Drops VBS files to the startup folder 47->126 128 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 47->128 66 InstallUtil.exe 47->66         started        86 C:\Users\user\AppData\Roaming\IsInvalid.exe, PE32 51->86 dropped 88 C:\Users\user\AppData\...\IsInvalid.vbs, ASCII 51->88 dropped 130 Writes to foreign memory regions 51->130 132 Injects a PE file into a foreign processes 51->132 70 InstallUtil.exe 51->70         started        134 Tries to steal Instant Messenger accounts or passwords 53->134 136 Tries to steal Mail credentials (via file / registry access) 53->136 98 127.0.0.1 unknown unknown 57->98 138 Tries to harvest and steal browser information (history, passwords, etc) 64->138 file16 signatures17 process18 dnsIp19 96 showip.net 162.55.60.2, 49697, 49698, 49704 ACPCA United States 66->96 148 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 66->148 150 Tries to steal Mail credentials (via file / registry access) 66->150 signatures20
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132
Gathering data
Detection:
remcos
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Link:
https://mwdb.cert.pl/sample/7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132
Threat name:
Script-JS.Trojan.DBatLoader
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Status:
Malicious
First seen:
2025-09-05 09:41:47 UTC
File Type:
Text
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=p5dogqpja3r4hnfzzy3ur5bg6j75qcgzasq74kqha3djbydbgeza._file
Verdict:
malicious
Label(s):
dbatloader
Create hunting rule
Similar samples:
0c46c44dd8d89f114c6efaa6cf6f5303884f9509f8744804d29f09e74953dcf1
RemcosRAT
5e088f3ae8bf2631e5aaa8de2facd537a65ef5e269924213e14ee41d94b6a446
RemcosRAT
7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132
RemcosRAT
a67c2c0d2344b1524cbe1d6a68d04590769ac64471338411b185547d08c38cbf
RemcosRAT
a8741f2d62f81c47812fd549d14aea8d5872afb9b9788d69c6f14d5bf6fc74ac
RemcosRAT
error
RemcosRAT
f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf
RemcosRAT
+ 241 additional samples on MalwareBazaar
Result
Malware family:
modiloader
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Score:
  10/10
Tags:
family:modiloader collection discovery execution persistence trojan
Link:
https://tria.ge/reports/250905-swrqkasvev/
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Drops startup file
Executes dropped EXE
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7f46e341e906e3c3b4b9ce3748f426f27fd808d904a1fe2a0706c690e0613132

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:BLOWFISH_Constants
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Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_plaintext_c2
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Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:CP_AllMal_Detector
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Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
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Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
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Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
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Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_CC_Regex
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Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
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Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
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Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
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Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:MALWARE_Win_A310Logger
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Author:ditekSHen
Description:Detects A310Logger
Rule name:MALWARE_Win_DarkCloud
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Author:ditekSHen
Description:Detects DarkCloud infostealer
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:NET
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Author:malware-lu
Rule name:nirsoft_v1
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Author:RandomMalware
Rule name:pe_detect_tls_callbacks
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Rule name:pe_no_import_table
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Description:Detect pe file that no import table
Rule name:ProtectSharewareV11eCompservCMS
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Author:malware-lu
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:Remcos
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Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_
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Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:REMCOS_RAT_variants
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Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:telegram_bot_api
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Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:TeslaCryptPackedMalware
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Rule name:ThreadControl__Context
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
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Author:malware-lu
Rule name:Warp
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Author:Seth Hardy
Description:Warp
Rule name:WarpStrings
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Author:Seth Hardy
Description:Warp Identifying Strings
Rule name:Windows_Trojan_DarkCloud_9905abce
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Author:Elastic Security
Rule name:Windows_Trojan_Remcos_b296e965
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Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
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Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
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Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments