MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 722a9dec8671cb4896b18798e8465cd35a85cf7dca6765677b8093b0c3b14471. 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: 14


Intelligence 14 IOCs YARA 24 File information Comments
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SHA256 hash: 722a9dec8671cb4896b18798e8465cd35a85cf7dca6765677b8093b0c3b14471
SHA3-384 hash: a9058ed43a945d1c61d99c9b8400706b3fc94d6a58d8def760822eab09440f8e742e4fd017ada0337b27852e03282651
SHA1 hash: 26807e30af6b24c4c715cf9d4516c16d3d843cd5
MD5 hash: 55339727037c1e51a4bb1ca56d56ebca
humanhash: high-bluebird-seven-november
File name:Quotation 19023586 .JS
Download: download sample
Signature RemcosRAT
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File size:8'677'960 bytes
First seen:2026-02-04 08:40:13 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:qz8qUv4nNFvBuEY2qX+rOKnc9OVuK1DsVRBME8Skqyzo9ro5+bzWAgXiq2LlyIdr:qY6oLC2Mi9uqexFVJG82v6vWzqF1ZNyf
TLSH T124962AB326C660D529BFFEBE572186305C572E23344DD918F5A1223260F5D26EE31CBA
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
139
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Generic-EXE.UNOFFICIAL
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Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=698305fe6b1af47db72cacac
Tags:
emotet lien
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug base64 dropper evasive obfuscated obfuscated packed repaired
Link:
https://www.filescan.io/uploads/698305f7930564ff3c89048b/reports/1721ac81-84e8-4555-b2cc-db80f8490dc1/overview
Verdict:
Suspicious
Labled as:
JS/Agent.DLR
Link:
https://www.hybrid-analysis.com/sample/722a9dec8671cb4896b18798e8465cd35a85cf7dca6765677b8093b0c3b14471
Verdict:
Malicious
File Type:
js
First seen:
2026-02-04T05:14:00Z UTC
Last seen:
2026-02-05T05:37:00Z UTC
Hits:
~1000
Detections:
Trojan-Downloader.JS.Cryptoload.sb Trojan.Win32.Shellcode.sb Backdoor.Win32.Remcos.sb HEUR:Trojan-Dropper.Script.Generic HEUR:Trojan.Script.Generic
Link:
https://opentip.kaspersky.com/722a9dec8671cb4896b18798e8465cd35a85cf7dca6765677b8093b0c3b14471/results?tab=lookup
Result
Threat name:
DonutLoader, Remcos
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Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1863095
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Executes Lua script
Found API chain indicative of debugger detection
Found hidden mapped module (file has been removed from disk)
Found malware configuration
JavaScript file contains Antivirus product strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
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
Sigma detected: Execution from Suspicious Folder
Sigma detected: Suspicious Creation with Colorcpl
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected DonutLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1863095 Sample: Quotation 19023586 .JS.js Startdate: 04/02/2026 Architecture: WINDOWS Score: 100 37 chimdikeiheanyichukwu.ydns.eu 2->37 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 15 other signatures 2->55 9 wscript.exe 1 4 2->9         started        signatures3 process4 signatures5 67 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->67 69 Executes Lua script 9->69 12 JBQYESVAAFBJCHIFKCHQCXWQGOSNXQLVFFKUIDFUMHHNBNMNFLDXOZT.exe 1 9->12         started        process6 signatures7 71 Found API chain indicative of debugger detection 12->71 73 Writes to foreign memory regions 12->73 75 Allocates memory in foreign processes 12->75 77 Creates a thread in another existing process (thread injection) 12->77 15 colorcpl.exe 4 3 12->15         started        20 conhost.exe 12->20         started        process8 dnsIp9 39 chimdikeiheanyichukwu.ydns.eu 172.245.195.198, 20905, 49723, 49724 AS-COLOCROSSINGUS United States 15->39 31 C:\Users\user\AppData\Local\Temp\TH32C2.tmp, MS-DOS 15->31 dropped 33 C:\Users\user\AppData\Local\Temp\TH3235.tmp, MS-DOS 15->33 dropped 35 C:\Users\user\AppData\Local\Temp\TH31B7.tmp, MS-DOS 15->35 dropped 41 Writes to foreign memory regions 15->41 43 Found hidden mapped module (file has been removed from disk) 15->43 45 Maps a DLL or memory area into another process 15->45 47 2 other signatures 15->47 22 RmClient.exe 1 15->22         started        25 RmClient.exe 1 15->25         started        27 RmClient.exe 15->27         started        29 RmClient.exe 2 15->29         started        file10 signatures11 process12 signatures13 57 Tries to steal Instant Messenger accounts or passwords 22->57 59 Tries to steal Mail credentials (via file / registry access) 22->59 61 Tries to harvest and steal browser information (history, passwords, etc) 25->61 63 Tries to steal Mail credentials (via file registry) 27->63 65 Unusual module load detection (module proxying) 27->65
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
Base64 Block Base64 Payload Contains Base64 Block Executable PE (Portable Executable) PE File Layout
Link:
https://app.malva.re/file/55339727037c1e51a4bb1ca56d56ebca
Detection:
remcos
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Link:
https://mwdb.cert.pl/sample/722a9dec8671cb4896b18798e8465cd35a85cf7dca6765677b8093b0c3b14471/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/722a9dec8671cb4896b18798e8465cd35a85cf7dca6765677b8093b0c3b14471
Threat name:
Script-JS.Trojan.Generic
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Status:
Suspicious
First seen:
2026-02-04 08:40:31 UTC
File Type:
Binary
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oivj33egohfurfvrq6moqrs42nnilt35zjtwkz33qcj3bq5riryq._file
Verdict:
malicious
Label(s):
nirsoft
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remcos
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admintool_mailpassview
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Similar samples:
error
RemcosRAT
Result
Malware family:
donutloader
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Score:
  10/10
Tags:
family:donutloader collection discovery execution loader
Link:
https://tria.ge/reports/260204-kk236abs6b/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
Detects DonutLoader
DonutLoader
Donutloader family
Malware family:
Remcos
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/722a9dec8671/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/722a9dec8671cb4896b18798e8465cd35a85cf7dca6765677b8093b0c3b14471

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:ClamAV_Emotet_String_Aggregate
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
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:Disable_Defender
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Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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:INDICATOR_EXE_Packed_MPress
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Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
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Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
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:Remcos
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Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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Rule name:Remcos_unpacked_PulseIntel
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Author:PulseIntel
Description:Remcos Payload
Rule name:Sus_CMD_Powershell_Usage
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Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:TeslaCryptPackedMalware
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
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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
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Author:Matthew @ Embee_Research

File information

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

Comments