MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6157e8fd47726b767a2a683ade4fe78fcfb5de4c1b270e29a8cfa26b1d5d55ce. 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 2 File information Comments

SHA256 hash: 6157e8fd47726b767a2a683ade4fe78fcfb5de4c1b270e29a8cfa26b1d5d55ce
SHA3-384 hash: 9e57d6b7c25125c257d76570f3523ead2de29b7b52e0e5eafce85822ee8869e28a011928cfbebc262bc17c3c08c9c204
SHA1 hash: 25a8e92e22e9073f20e8d67764c06c8eecc35747
MD5 hash: 3a37bad2867534a4e48d7fbac3566590
humanhash: asparagus-xray-whiskey-lake
File name:Komercijalna Banka_копија за плаќање.pdf.js
Download: download sample
Signature RemcosRAT
File size:3'915'100 bytes
First seen:2026-08-27 14:20:16 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:YSEFBKODS11kdBTUVia4dLeBmSyXjJLTEqR0NLYfg0YzEDB7ClbrF+aTGMmerzNO:OFBKOOb0hH/RKCq4ZrdYc3
TLSH T1100692E3C34EFD1A0A35CB30DB049AA5E909C92742E69768BACD465FFFB442858F44D1
Magika javascript
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
164
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
encrypted evasive masquerade obfuscated repaired smb
Verdict:
Malicious
File Type:
js
First seen:
2026-08-26T11:08:00Z UTC
Last seen:
2026-08-28T12:12:00Z UTC
Hits:
~1000
Result
Threat name:
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Drops script or batch files to the startup folder
Found malware configuration
Found stalling execution ending in API Sleep call
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
JavaScript source code contains functionality to generate code involving HTTP requests or file downloads
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: Suspicious Parent Double Extension File Execution
Sigma detected: WScript or CScript Dropper
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 reads language and country specific registry keys (likely country aware script)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1964812 Sample: _#U043a#U043e#U043f#U0438#U... Startdate: 27/08/2026 Architecture: WINDOWS Score: 100 24 Found malware configuration 2->24 26 Malicious sample detected (through community Yara rule) 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 10 other signatures 2->30 7 wscript.exe 1 6 2->7         started        process3 file4 18 C:\Users\user\...\zswxdbkkgxautgdynp.exe, PE32+ 7->18 dropped 20 C:\Users\user\AppData\...\u2fxut61k.bat, ASCII 7->20 dropped 32 Benign windows process drops PE files 7->32 34 Drops script or batch files to the startup folder 7->34 36 Windows Scripting host queries suspicious COM object (likely to drop second stage) 7->36 38 WScript reads language and country specific registry keys (likely country aware script) 7->38 11 zswxdbkkgxautgdynp.exe 7->11         started        signatures5 process6 signatures7 40 Writes to foreign memory regions 11->40 42 Allocates memory in foreign processes 11->42 44 Creates a thread in another existing process (thread injection) 11->44 46 Injects a PE file into a foreign processes 11->46 14 charmap.exe 4 11->14         started        process8 dnsIp9 22 31.57.219.135, 9714 VIRTUO-12651980CANADAINCCA France 14->22 48 Contains functionality to bypass UAC (CMSTPLUA) 14->48 50 Detected Remcos RAT 14->50 52 Found stalling execution ending in API Sleep call 14->52 54 Unusual module load detection (module proxying) 14->54 signatures10
Gathering data
Threat name:
Script-JS.Backdoor.Remcos
Status:
Malicious
First seen:
2026-08-26 21:54:17 UTC
File Type:
Text
AV detection:
6 of 36 (16.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection execution persistence privilege_escalation rat
Behaviour
Modifies registry class
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Accesses Microsoft Outlook profiles
Checks computer location settings
Creates a file in the Startup directory
Executes dropped EXE
Family: Remcos
Malware Config
C2 Extraction:
31.57.219.135:9714
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:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:Sus_CMD_Powershell_Usage
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