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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2
SHA3-384 hash: bd895716e07c7c436ae9f5519a0013e43f8e5660db8df40711b21edd02df3ac0861a367f56a03817ae3a614ade8caa9a
SHA1 hash: d24a59f4e4ede340f013a94e0bc13545c6c5978f
MD5 hash: a87c433a050ea39c349a6dc438fd7fc6
humanhash: california-asparagus-happy-april
File name:REQUEST_FOR_QUOTATION_25117_2026.arj.zip
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:102'262 bytes
First seen:2026-10-14 15:29:25 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 1536:XoaeHezpTvRzFXgoQy9ZcgUQmltfqv/0g/N8d06bDQ8CJO2ZbddPumNiJEK:4+tbRzPdrvUxnSvMw2b08C82XdGdb
TLSH T1C1A312C23582989592C72F54D9F9BD525D3670011CEB298EAF288F13BD4079F0A5ED73
Magika zip
Reporter TomU
Tags:RemcosRAT zip

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:REQUEST_FOR_QUOTATION_25117_2026.vbs
File size:197'278 bytes
SHA256 hash: f06cb320794d6ba8d2501c854c18675903e0f26923d52fe4a7403d887ac3dd88
MD5 hash: b332d51397f902294e072a2b342c4625
MIME type:text/plain
Signature RemcosRAT
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/6bf051c7-d040-42c1-9424-a6da6f988aad/
Detection(s):
Sanesecurity.Foxhole.JS_Zip_1v.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ace5fa8350c7ee8cc151254
Tags:
virus shell sage
Result
Verdict:
Malicious
File Type:
VBS File - Malicious
Link:
https://app.docguard.net/8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd lolbin obfuscated
Link:
https://www.filescan.io/uploads/6acfa02461fb566b5b65d41c/reports/07ea12f0-9665-4bc9-afd4-c88a8de45810/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2
Verdict:
Malicious
File Type:
zip
First seen:
2026-09-29T17:03:00Z UTC
Last seen:
2026-10-15T09:18:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2/results?tab=lookup
Score:
97%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2
Verdict:
Malware
YARA:
2 match(es)
Tags:
COM Behavior Trace DeObfuscated Obfuscated SOS: 0.34 T1027 T1059.005 VBScript WScript.Shell Zip Archive
Link:
https://app.malva.re/file/a87c433a050ea39c349a6dc438fd7fc6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2/
Threat name:
Script-WScript.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2026-09-30 01:21:59 UTC
File Type:
Binary (Archive)
Extracted files:
1
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qy4xthh6dj756z4zr7vywg7n5qhcgnownvnaxk4vldzvszp4dpra._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost defense_evasion discovery downloader execution privilege_escalation rat
Link:
https://tria.ge/reports/261014-s3326sew5p/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Executes a VBScript file via the Windows Script Host.
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Checks computer location settings
Badlisted process makes network request
Family: Guloader,Cloudeye
Family: Remcos
Malware Config
C2 Extraction:
102.220.161.59:2404
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/8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2

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:Cerberus
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Cerberus
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.

Malspam

RemcosRAT

zip 8639799cfe1a7fdf67998feb8b1bedec0e2335d66d5a0bab9558f35965fc1be2

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments