MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6d5b9e70a63bbfeb82579d238a0c8a04c860d645332f3a123c4628e302306a35. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6d5b9e70a63bbfeb82579d238a0c8a04c860d645332f3a123c4628e302306a35
SHA3-384 hash: 8f13acb60040a5801bccadc18df3ec7219318d1df54c3bd2f5a25d251d0de3574e534a16a8d2733b20ced40c1eeb973c
SHA1 hash: 704018157bd3e530b4a38bd5937c82679644cf97
MD5 hash: fefdf6ac1df6f72cc54174dcdfc55010
humanhash: bakerloo-india-avocado-tennis
File name:UOB_ Payment Advice Swift copy.pdf.JS
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:6'774'930 bytes
First seen:2026-01-30 12:55:21 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 98304:noLWB5egS7C3Dgg/0rr5E2CLTO8LCU7/Bl1fABvNz2hCzeZzrLWm8fKbH:YcQh7yU3CLxlVAfz2MeZjWm5bH
TLSH T1C566F6007F01E072EB3A5B9DB573BAB01410709738E2DB6D31195A567626827F7A8FF2
Magika javascript
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=697caa7f9a17da7683b4961f
Tags:
autoit emotet lien
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug autoit dropper evasive expired-cert fingerprint keylogger masquerade obfuscated repaired
Link:
https://www.filescan.io/uploads/697caa50b6bd365f0a697ee2/reports/6cb8bd86-364b-49be-9bf7-30670766bb02/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/6d5b9e70a63bbfeb82579d238a0c8a04c860d645332f3a123c4628e302306a35
Verdict:
Malicious
File Type:
js
First seen:
2026-01-28T03:27:00Z UTC
Last seen:
2026-01-31T04:35:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic BSS:Trojan.Win32.Generic HEUR:Trojan-Dropper.Script.Generic
Link:
https://opentip.kaspersky.com/6d5b9e70a63bbfeb82579d238a0c8a04c860d645332f3a123c4628e302306a35/results?tab=lookup
Result
Threat name:
Remcos, DonutLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1860480
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Found malware configuration
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
Sigma detected: Execution from Suspicious Folder
Sigma detected: Remcos
Sigma detected: Suspicious Creation with Colorcpl
Sigma detected: Suspicious Parent Double Extension File Execution
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)
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
Yara detected DonutLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1860480 Sample: UOB_ Payment Advice Swift c... Startdate: 30/01/2026 Architecture: WINDOWS Score: 100 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 15 other signatures 2->51 8 wscript.exe 1 4 2->8         started        process3 file4 33 EUTJKZHBVIJIGZYVNS...LUOCDOPOUUHKLZMIAUX, data 8->33 dropped 63 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->63 12 EUTJKZHBVIJIGZYVNSZDTBKSRTXXKVKFFADTLUOCDOPOUUHKLZMIAUX.exe 8->12         started        signatures5 process6 signatures7 65 Writes to foreign memory regions 12->65 67 Allocates memory in foreign processes 12->67 69 Creates a thread in another existing process (thread injection) 12->69 15 colorcpl.exe 6 3 12->15         started        process8 dnsIp9 35 158.94.209.29, 49691, 49692, 9874 JANETJiscServicesLimitedGB United Kingdom 15->35 27 C:\Users\user\AppData\Local\Temp\TH97EF.tmp, MS-DOS 15->27 dropped 29 C:\Users\user\AppData\Local\Temp\TH97B0.tmp, MS-DOS 15->29 dropped 31 C:\Users\user\AppData\Local\Temp\TH9713.tmp, MS-DOS 15->31 dropped 37 Detected Remcos RAT 15->37 39 Writes to foreign memory regions 15->39 41 Found hidden mapped module (file has been removed from disk) 15->41 43 3 other signatures 15->43 20 RmClient.exe 2 15->20         started        23 RmClient.exe 1 15->23         started        25 RmClient.exe 1 15->25         started        file10 signatures11 process12 signatures13 53 Tries to steal Mail credentials (via file registry) 20->53 55 Tries to harvest and steal browser information (history, passwords, etc) 20->55 57 Unusual module load detection (module proxying) 20->57 59 Tries to steal Instant Messenger accounts or passwords 23->59 61 Tries to steal Mail credentials (via file / registry access) 23->61
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6d5b9e70a63bbfeb82579d238a0c8a04c860d645332f3a123c4628e302306a35/
Verdict:
Malicious
Threat:
Family.REMCOSRAT
Link:
https://tip.neiki.dev/file/6d5b9e70a63bbfeb82579d238a0c8a04c860d645332f3a123c4628e302306a35
Threat name:
Script-JS.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-01-28 05:34:45 UTC
File Type:
Binary
AV detection:
8 of 38 (21.05%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nvnz44fgho76xasxturyudekategbvsfgmxtuer4iyuogarqni2q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
nirsoft
Create hunting rule
admintool_mailpassview
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader collection discovery execution loader
Link:
https://tria.ge/reports/260130-p6acgsc19b/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
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
Detected Nirsoft tools
NirSoft MailPassView
Detects DonutLoader
DonutLoader
Donutloader family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.60
Link:
https://yomi.yoroi.company/submissions/6d5b9e70a63bbfeb82579d238a0c8a04c860d645332f3a123c4628e302306a35

File information

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

Comments