MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf. 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: 12


Intelligence 12 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf
SHA3-384 hash: 132c56487bf6f3ad20a8a28baec9379dd5955a67cc14d1cb5e2ec6a4bcca5160c8e78b7124aee3c0a701f2f8b7085ca2
SHA1 hash: 4f27faddafe57f63e7593d0cf2273475e6ab9863
MD5 hash: f8b767bf3c57c956895022b98ff40f59
humanhash: monkey-lactose-papa-spaghetti
File name:IMG-202508-WA0008.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'986'232 bytes
First seen:2025-08-15 15:50:59 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:e73Sk86lXoX0EAvr3UwBR1cI5qrpnmQ5f6TloVdTsyhLNtWpHJz70yRfFZfBl+Wf:epFlXoPppJZPhmn00l+WOjw
Threatray 4'108 similar samples on MalwareBazaar
TLSH T17495F135CD579CAA5FDE1A8904DC2DD81F6C1F87C2A49644BF98B2F131CE8119AEC4AC
Magika txt
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=689f5794c2f5296a1a2738ae
Tags:
delphi emotet
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/689f5792abfbaec3182395c1/reports/39801b12-9f98-4577-9f54-4918cb991eab/overview
Verdict:
Malicious
Labled as:
GT:JS.Cbum.1
Link:
https://www.hybrid-analysis.com/sample/f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1758042
Signature
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 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
Early bird code injection technique detected
Found malware configuration
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Execution from Suspicious Folder
Sigma detected: Remcos
Sigma detected: Suspicious Creation with Colorcpl
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected DBatLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1758042 Sample: IMG-202508-WA0008.js Startdate: 15/08/2025 Architecture: WINDOWS Score: 100 38 vestcast.co 2->38 40 geoplugin.net 2->40 58 Suricata IDS alerts for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 12 other signatures 2->64 9 wscript.exe 1 2 2->9         started        13 rundll32.exe 3 2->13         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\Temp\x.exe, PE32 9->34 dropped 74 Benign windows process drops PE files 9->74 76 JScript performs obfuscated calls to suspicious functions 9->76 78 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->78 15 x.exe 2 9->15         started        19 Rvuowwoy.exe 13->19         started        signatures6 process7 file8 36 C:\Users\Public\...\Rvuowwoy.exe (copy), PE32 15->36 dropped 46 Antivirus detection for dropped file 15->46 48 Multi AV Scanner detection for dropped file 15->48 50 Early bird code injection technique detected 15->50 56 3 other signatures 15->56 21 colorcpl.exe 2 15 15->21         started        26 schtasks.exe 1 15->26         started        52 Allocates memory in foreign processes 19->52 54 Allocates many large memory junks 19->54 28 colorcpl.exe 19->28         started        signatures9 process10 dnsIp11 42 vestcast.co 198.135.50.224, 2490, 49683 CISCOSYSTEMSUS United States 21->42 44 geoplugin.net 178.237.33.50, 49684, 80 ATOM86-ASATOM86NL Netherlands 21->44 32 C:\ProgramData\remcos\logs.dat, data 21->32 dropped 66 Detected Remcos RAT 21->66 68 Contains functionalty to change the wallpaper 21->68 70 Contains functionality to steal Chrome passwords or cookies 21->70 72 4 other signatures 21->72 30 conhost.exe 26->30         started        file12 signatures13 process14
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf/
Verdict:
Malicious
Threat:
Backdoor.Win32.Remcos
Link:
https://tip.neiki.dev/file/f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf
Threat name:
Script-JS.Dropper.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-08-15 14:24:43 UTC
File Type:
Text
AV detection:
13 of 24 (54.17%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6glwcfu3fpa7divatetm3tx2gds7eng6zsu5dyu7w3o44drbpk7q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
dbatloader
Create hunting rule
Similar samples:
066ae9155891b102aaec4c4b2731fd9cc434f58b8687dd71d58728bc0c9d78ce
RemcosRAT
2d2f75ebacf859e1d3022588fdcee9c11e1a18a0bba02c65c8968501c89de6a5
RemcosRAT
94d359b58ad8043b411eb3b9ca8f983a1f4eb3f732a92e8a8c92c5432499d907
RemcosRAT
c7e7f3d4a0178d523a0e91e081878146f35eb074bb15239bf3e1cdc9f4f6de38
RemcosRAT
d1ba3c1f8ebac02d0214381c84a8c06856c035cfd92b0e226dbf8e3e8faa27b5
RemcosRAT
dcce4fcb1527dade75d9e78cd0b1c252166253ebd393c59fe613901df50ef8ec
RemcosRAT
e02d511a093b40e200d2880daa023aa48f35bd0efd3bc314bbc810beac48ca22
RemcosRAT
error
RemcosRAT
+ 4'098 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader discovery execution persistence trojan
Link:
https://tria.ge/reports/250815-tasw6symv7/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
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/f19761169b2bc1f1a2a09926cdcefa30e5f234decca9d1e29fb6ddce0e217abf

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
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
Create hunting rule
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