MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d21dee70baaba755ec78dc3645e8c944a810a966f28d9efc5c4307d9a1790b43. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d21dee70baaba755ec78dc3645e8c944a810a966f28d9efc5c4307d9a1790b43
SHA3-384 hash: 12b5dbfd691de76627644cbc1b514265635591902761bbdf5ef9b0eb68c388354c413a840af54f0767d857028e142e3b
SHA1 hash: f7fd0a3150f2a907fabc55eecdd845c3ccdcfc2e
MD5 hash: c1fe9a4a5452db7086bb4149362987b1
humanhash: potato-hot-jig-fruit
File name:CopilotDrivers.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'299'863 bytes
First seen:2025-08-14 13:06:46 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 1536:uUx6ZhNmycq3Fibo43brjM5o2g6E89U21Aee5Elc0RCUBRlG8/sKx+YGDLM+yUFa:C
TLSH T1EDB560B3254840E2AA7A4FE78B6FD4CE514513268775F5F5CB23CC25D2DAE80A1B4B38
Magika javascript
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=689ddfd648c64d68735c608a
Tags:
n/a
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/d21dee70baaba755ec78dc3645e8c944a810a966f28d9efc5c4307d9a1790b43
Result
Threat name:
PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1757011
Signature
Bypasses PowerShell execution policy
Creates processes via WMI
Found Tor onion address
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
31%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/d21dee70baaba755ec78dc3645e8c944a810a966f28d9efc5c4307d9a1790b43
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d21dee70baaba755ec78dc3645e8c944a810a966f28d9efc5c4307d9a1790b43/
Threat name:
Script-JS.Backdoor.Remcos
Create hunting rule
Status:
Suspicious
First seen:
2025-08-14 08:42:15 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2io644f2votvl3dy3q3el2gjisubbklg6kgz57c4imd5tilzbnbq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Link:
https://tria.ge/reports/250814-qc2ejstqv2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Command and Scripting Interpreter: JavaScript
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/d21dee70baaba755ec78dc3645e8c944a810a966f28d9efc5c4307d9a1790b43

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.

Web download

RemcosRAT

Java Script (JS) js d21dee70baaba755ec78dc3645e8c944a810a966f28d9efc5c4307d9a1790b43

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3597686/
  
Delivery method
Distributed via web download

Comments