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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 503d6c430784cde7ca3396ea841d85eac3b508e2ca26522afa520fe027a2c686. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 503d6c430784cde7ca3396ea841d85eac3b508e2ca26522afa520fe027a2c686
SHA3-384 hash: 3a14d98b8b62f37a219e70d65c3c339a23f564706407b3e90bfe2ff1a7043b21b31b02bfc71f7ca81c19e5981766e848
SHA1 hash: c40dabd811f035b2595030d8f9fa368a8eca6ac3
MD5 hash: 521cc3d93d40a143a6d4fb130b33ce9a
humanhash: venus-kitten-arizona-mango
File name:New inquiry - PT Medco E&P Indonesia.vbe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:62'498 bytes
First seen:2026-09-14 07:18:07 UTC
Last seen:Never
File type:Visual Basic Script (vbe) vbe
MIME type:text/plain
ssdeep 1536:gs048j2eU/WErhDcoEHfhqDzYWWaAATCVByY1:gs0rEWkhDMHpqRWaUVYm
TLSH T1BD535B71EF24062B0F4A275AFC561E4AD9BC8216452740B4FEDD934D641B8ACA3BF329
Magika vba
Reporter abuse_ch
Tags:RemcosRAT vbe

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6aa79fc2414a01b2cdb0b616/reports/32a137a6-20ee-402c-ab1f-fee7762f6b07/overview
Verdict:
Suspicious
Labled as:
VBS/Agent.CJZ2
Link:
https://www.hybrid-analysis.com/sample/503d6c430784cde7ca3396ea841d85eac3b508e2ca26522afa520fe027a2c686
Verdict:
Malicious
File Type:
vbs
First seen:
2026-09-13T14:29:00Z UTC
Last seen:
2026-09-16T05:43:00Z UTC
Hits:
~10000
Link:
https://opentip.kaspersky.com/503d6c430784cde7ca3396ea841d85eac3b508e2ca26522afa520fe027a2c686/results?tab=lookup
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1972541
Signature
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
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)
Wscript starts Powershell (via cmd or directly)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1972541 Sample: New inquiry - PT Medco E&P ... Startdate: 14/09/2026 Architecture: WINDOWS Score: 100 30 drive.usercontent.google.com 2->30 32 drive.google.com 2->32 40 Malicious sample detected (through community Yara rule) 2->40 42 Yara detected GuLoader 2->42 44 Sigma detected: WScript or CScript Dropper 2->44 46 Joe Sandbox ML detected suspicious sample 2->46 9 wscript.exe 1 2->9         started        12 svchost.exe 1 1 2->12         started        signatures3 process4 dnsIp5 56 Wscript starts Powershell (via cmd or directly) 9->56 58 Obfuscated command line found 9->58 60 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->60 62 2 other signatures 9->62 15 cmd.exe 1 9->15         started        38 127.0.0.1 unknown unknown 12->38 signatures6 process7 signatures8 64 Wscript starts Powershell (via cmd or directly) 15->64 18 powershell.exe 1 16 15->18         started        22 conhost.exe 15->22         started        24 cmd.exe 1 15->24         started        process9 dnsIp10 34 drive.usercontent.google.com 142.251.210.129, 443, 49700 GOOGLE-GoogleLLCUS United States 18->34 36 drive.google.com 142.251.218.14, 443, 49699 GOOGLE-GoogleLLCUS United States 18->36 48 Writes to foreign memory regions 18->48 50 Found suspicious powershell code related to unpacking or dynamic code loading 18->50 52 Hides threads from debuggers 18->52 54 Switches to a custom stack to bypass stack traces 18->54 26 backgroundTaskHost.exe 18->26         started        28 backgroundTaskHost.exe 18->28         started        signatures11 process12
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/503d6c430784cde7ca3396ea841d85eac3b508e2ca26522afa520fe027a2c686
Verdict:
Malware
YARA:
1 match(es)
Tags:
COM Behavior Trace DeObfuscated Obfuscated SOS: 0.37 T1027 T1059.005 VBScript WScript.Shell
Link:
https://app.malva.re/file/521cc3d93d40a143a6d4fb130b33ce9a
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/503d6c430784cde7ca3396ea841d85eac3b508e2ca26522afa520fe027a2c686/
Threat name:
Script-WScript.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-09-14 01:00:00 UTC
File Type:
Text (VBS)
AV detection:
9 of 38 (23.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ka6wyqyhqtg6psrts3viihmf5lb3kchczitfekx2kih6aj5cy2da._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery execution rat
Link:
https://tria.ge/reports/260914-h45x2shp4w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Executes a VBScript file via the Windows Script Host.
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Contacts third-party web service commonly abused for C2
Checks computer location settings
Badlisted process makes network request
Family: Remcos
Malware Config
C2 Extraction:
155.103.70.196:2404
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/503d6c430784cde7ca3396ea841d85eac3b508e2ca26522afa520fe027a2c686

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:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb

File information

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

Comments