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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3a239b2b9f03411808ad477ec8b4bd91e5aeac1af2b0aaff99e448a16520eb3. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3a239b2b9f03411808ad477ec8b4bd91e5aeac1af2b0aaff99e448a16520eb3
SHA3-384 hash: c2e95e6528c9afd66ad9315f9914eed24834b54e76d8858c042ce8b5272a4d5fb72f864e8c79f326b24b971fabb60365
SHA1 hash: b016e17f801e8f0d7bbb161ecefae045aaca64f2
MD5 hash: 40ed47767c280e5a182dfd0ea6d1cc8f
humanhash: winner-helium-foxtrot-friend
File name:United Overseas Bank_Payment Advice.pdf.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:74'062 bytes
First seen:2026-10-08 09:42:47 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 96:eGb3Ru8yjl4xjHjZnlUjsuCwy8YKQnsBXFu1GNncvAUyjFbAY5t2D:eEFyyHjZnRuCJKtNZjJ/SD
TLSH T192735C8B3B71D2142C222ADE28FD64E687AEA5B5077FF1CE1D63452E8D93CCD4940792
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika vba
Reporter abuse_ch
Tags:RemcosRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
95
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/91082/
Detection(s):
SecuriteInfo.com.Script.SNH-gen.42381124.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 evasive masquerade obfuscated powershell
Link:
https://www.filescan.io/uploads/6ac765bf9ba04880777669e2/reports/d03ce53d-9fe9-456c-b31a-1b19a67a59bd/overview
Verdict:
Malicious
Labled as:
VBS/Agent.DCY
Link:
https://www.hybrid-analysis.com/sample/b3a239b2b9f03411808ad477ec8b4bd91e5aeac1af2b0aaff99e448a16520eb3
Verdict:
Malicious
File Type:
vbs
First seen:
2026-10-07T22:52:00Z UTC
Last seen:
2026-10-09T22:41:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b3a239b2b9f03411808ad477ec8b4bd91e5aeac1af2b0aaff99e448a16520eb3/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1984049
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Internet Explorer form passwords
Contains functionalty to change the wallpaper
Detected Remcos RAT
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Powershell connects to network
Sample has a suspicious name (potential lure to open the executable)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Register Wscript In Run Key
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
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)
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows Shell Script Host drops VBS files
Writes to foreign memory regions
Wscript called in batch mode (surpress errors)
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1984049 Sample: United Overseas Bank_Paymen... Startdate: 08/10/2026 Architecture: WINDOWS Score: 100 60 www.epibenie.dz 2->60 62 epibenie.dz 2->62 64 2 other IPs or domains 2->64 74 Sigma detected: Register Wscript In Run Key 2->74 76 Suricata IDS alerts for network traffic 2->76 78 Found malware configuration 2->78 80 20 other signatures 2->80 8 wscript.exe 3 2->8         started        12 wscript.exe 3 2->12         started        14 wscript.exe 2->14         started        signatures3 process4 file5 44 United Overseas Ba...vbs:Zone.Identifier, ASCII 8->44 dropped 46 United Overseas Ba...ment Advice.pdf.vbs, Unicode 8->46 dropped 82 VBScript performs obfuscated calls to suspicious functions 8->82 84 Suspicious powershell command line found 8->84 86 Wscript starts Powershell (via cmd or directly) 8->86 92 3 other signatures 8->92 16 powershell.exe 15 17 8->16         started        48 C:\Users\user\Windows.vbs:Zone.Identifier, ASCII 12->48 dropped 50 C:\Users\user\Windows.vbs, Unicode 12->50 dropped 88 Windows Shell Script Host drops VBS files 12->88 90 WScript reads language and country specific registry keys (likely country aware script) 12->90 21 powershell.exe 15 12->21         started        23 powershell.exe 14->23         started        signatures6 process7 dnsIp8 58 epibenie.dz 135.181.225.133, 443, 49711, 49718 HETZNER-ASDE Finland 16->58 40 C:\Users\user\...\Windows.vbs:Zone.Identifier, ASCII 16->40 dropped 42 C:\Users\user\AppData\Roaming\...\Windows.vbs, Unicode 16->42 dropped 68 Writes to foreign memory regions 16->68 70 Injects a PE file into a foreign processes 16->70 25 MSBuild.exe 4 3 16->25         started        30 conhost.exe 16->30         started        32 MSBuild.exe 21->32         started        34 conhost.exe 21->34         started        72 Powershell connects to network 23->72 36 MSBuild.exe 23->36         started        38 conhost.exe 23->38         started        file9 signatures10 process11 dnsIp12 66 216.9.225.162, 49715, 49716, 49723 WHITELABELUS United States 25->66 52 C:\Users\user\AppData\...\Login Data.tmp, SQLite 25->52 dropped 54 C:\Users\user\AppData\...\Login Data.tmp, SQLite 25->54 dropped 56 C:\Users\user\...\Login Data For Account.tmp, SQLite 25->56 dropped 94 Contains functionality to bypass UAC (CMSTPLUA) 25->94 96 Detected Remcos RAT 25->96 98 Contains functionalty to change the wallpaper 25->98 100 5 other signatures 25->100 file13 signatures14
Score:
38%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/b3a239b2b9f03411808ad477ec8b4bd91e5aeac1af2b0aaff99e448a16520eb3
Verdict:
Malware
YARA:
3 match(es)
Tags:
COM Behavior Trace DeObfuscated Obfuscated PowerShell Scripting.FileSystemObject SOS: 0.57 T1027 T1059 T1059.001 T1059.005 VBScript WScript.Shell
Link:
https://app.malva.re/file/40ed47767c280e5a182dfd0ea6d1cc8f
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3a239b2b9f03411808ad477ec8b4bd91e5aeac1af2b0aaff99e448a16520eb3/
Threat name:
Script-WScript.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2026-10-08 05:21:32 UTC
File Type:
Text (VBS)
AV detection:
9 of 24 (37.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wordtmvz6a2bdaek2r36zc2l3epfv2wbv4vqvl7ztzciufssb2zq._file
Verdict:
malicious
Label(s):
Remcos
Create hunting rule
Link:
https://reports.threatray.com/e6ee8904-132e-4617-be11-592eb6c0751c
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection execution persistence rat
Link:
https://tria.ge/reports/261008-lp4cfsvvfs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
Executes a VBScript file via the Windows Script Host.
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted process makes network request
Family: Remcos
Malware Config
C2 Extraction:
216.9.225.162:9746
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3a239b2b9f03411808ad477ec8b4bd91e5aeac1af2b0aaff99e448a16520eb3

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:SUSP_Script_PowerShell_Hidden_Launcher
Create hunting rule
Author:Marjoriefort
Description:Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:Veille fraicheur 2026-09-14 / cluster misses web
Rule name:SUSP_VBS_Wscript_Shell
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon
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.

Cape
Cape
https://www.capesandbox.com/analysis/91082/

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