MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e
SHA3-384 hash: fd63584072ca8d1a303488281b15fcbd59220dc01dcff265fce96f5e7b7eb76ae3f46a0ca21f6f73ea9d36d4daad11bd
SHA1 hash: 3e774d2cb6dabc2e8d6df4086051fac7b7d116a1
MD5 hash: 80166d0b926cc7373b0c6994860288f7
humanhash: alanine-stairway-november-kitten
File name:CUSTOM_CLEARANCE.DOC.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:16'373'766 bytes
First seen:2026-06-04 06:19:31 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 98304:0RDBbQWOwoQuQBeCBOE06Mm0QOOlraOLB3DZD/o9QsDk3oxYA6Bny1FZXBgObIIt:j
Threatray 45 similar samples on MalwareBazaar
TLSH T1F2F6C6C2425FE15BF3FD2E835D5138176B03F2A196FE41E2B2714BC482758AA889379D
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika autohotkey
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
SE SE
Vendor Threat Intelligence
Gathering data
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a21194af8676ad4d360ef36
Tags:
autorun cobalt
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade repaired
Link:
https://www.filescan.io/uploads/6a21194c46e44aecc0ce0bb5/reports/55c6bfa7-895a-44d4-b9f8-ffac02b6ceab/overview
Verdict:
Suspicious
Labled as:
VBS/Agent.TKB trojan
Link:
https://www.hybrid-analysis.com/sample/951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e
Verdict:
Malicious
File Type:
js
First seen:
2026-06-04T01:21:00Z UTC
Last seen:
2026-06-05T23:15:00Z UTC
Hits:
~100
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic Trojan.MSIL.Crypt.sb Trojan-Downloader.MSIL.Seraph.d Trojan-Downloader.MSIL.Agent.c PDM:Trojan.Win32.Generic PDM:Exploit.Win32.Generic Trojan.VBS.SAgent.sb
Link:
https://opentip.kaspersky.com/951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1922690
Signature
Attempt to bypass Chrome Application-Bound Encryption
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Detected Remcos RAT
Drops script or batch files to the startup folder
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Cscript/Wscript Uncommon Script Extension Execution
Sigma detected: Drops script at startup location
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: Suspicious Parent Double Extension File Execution
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Uses an obfuscated file name to hide its real file extension (double extension)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1922690 Sample: CUSTOM_CLEARANCE.DOC.js Startdate: 04/06/2026 Architecture: WINDOWS Score: 100 50 res.cloudinary.com 2->50 52 cloudinary.map.fastly.net 2->52 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 16 other signatures 2->66 9 powershell.exe 14 15 2->9         started        13 wscript.exe 14 3 2->13         started        16 wscript.exe 1 2->16         started        signatures3 process4 dnsIp5 58 cloudinary.map.fastly.net 151.101.65.137, 443, 49711, 49715 FASTLY-FastlyIncUS Canada 9->58 82 Writes to foreign memory regions 9->82 84 Modifies the context of a thread in another process (thread injection) 9->84 86 Injects a PE file into a foreign processes 9->86 88 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->88 18 appidtel.exe 5 10 9->18         started        23 conhost.exe 9->23         started        48 C:\Users\user\...\CUSTOM_CLEARANCE.DOC.js, Unicode 13->48 dropped 90 Suspicious powershell command line found 13->90 92 Wscript starts Powershell (via cmd or directly) 13->92 94 Drops script or batch files to the startup folder 13->94 96 4 other signatures 13->96 25 powershell.exe 16->25         started        file6 signatures7 process8 dnsIp9 54 83.142.209.134, 49712, 49713, 49714 GHOSTYNETWORKSUS Germany 18->54 56 127.0.0.1 unknown unknown 18->56 40 C:\Users\user\AppData\...\cookies.sqlite-shm, data 18->40 dropped 42 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->42 dropped 44 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->44 dropped 46 2 other files (1 malicious) 18->46 dropped 68 Contains functionality to bypass UAC (CMSTPLUA) 18->68 70 Detected Remcos RAT 18->70 72 Attempt to bypass Chrome Application-Bound Encryption 18->72 80 6 other signatures 18->80 27 msedge.exe 7 18->27         started        29 chrome.exe 1 18->29         started        74 Writes to foreign memory regions 25->74 76 Modifies the context of a thread in another process (thread injection) 25->76 78 Injects a PE file into a foreign processes 25->78 31 appidtel.exe 25->31         started        34 conhost.exe 25->34         started        file10 signatures11 process12 signatures13 36 msedge.exe 27->36         started        38 conhost.exe 29->38         started        98 Detected Remcos RAT 31->98 process14
Score:
43%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e/
Verdict:
Clean
Link:
https://tip.neiki.dev/file/951ca2bf5d0c18df12b7e3e23d4e2e2a175206e9bdb70639a76e781eca058d9e
Threat name:
Script-JS.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-06-04 06:21:45 UTC
File Type:
Binary
AV detection:
8 of 23 (34.78%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=suokfp25bqmn6evx4prd2trofilvebxjxw3qmonhnz4b5sqfrwpa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
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RemcosRAT
2ba597e8fd9de1795468c73e40decc9845f834ce711e9c1362d9952fb388af6d
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44f7bc633fb44c58c2c0060945fe0db8d3aae62c64413984f54cb59a54f51a4f
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8787ab12fed80258a88393a4fc4d364f0872273a3417dd31b6c33e00daa94bcc
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9bad04d6ae85c68c1c9aa2718fae8e1713e77b13e2b6c069c26491d72ae63b17
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a94a77a31e66e7c54af6a47a0a2f2b1f6cb35f2232f466d92d2dc8546d4130ed
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ad80f2a05a6bd4b5a0d34c328c4a6280414f779db82ab3917fb59da1e529b08e
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c9e6374b7ac0a335c2b8d3db32195de84507f2a3e18a762e96023d85acdfdcfa
RemcosRAT
e252cd399ca7d1102917946ea9cbd9cf4e9d03bf0180d26a43946cafc4b7acb4
RemcosRAT
error
RemcosRAT
f2794e5240bca319618a14ef6f9c1fd2da129b31db4dbf5df9158b863c8a3c66
RemcosRAT
+ 35 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:host collection credential_access discovery execution rat stealer
Link:
https://tria.ge/reports/260604-g37vksby6k/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Time Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Drops startup file
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Uses browser remote debugging
Family: Remcos
Process spawned unexpected child process
Malware Config
C2 Extraction:
83.142.209.134:8080
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

Comments