MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3
SHA3-384 hash: b2ed5bfd56fe3e99ef1806affe77b861001cace28e27cb4498e0f0cb21ec143b9ad776d849a5840e9c4b1f2f747a697d
SHA1 hash: 25a3a7d4bc2ef462dc678e356d02bfe5d9c1d458
MD5 hash: 13ff00b8561513dcc1503a5ba21f3027
humanhash: west-batman-don-one
File name:f36ux.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:448'120 bytes
First seen:2025-12-04 07:01:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (730 x GuLoader, 452 x Formbook, 295 x Loki)
ssdeep 6144:NbE/HUS1d6Gae7cSdorxUhjA/wjysgbnK2K/+312v2CupgeU0n/zN7ApMDnKIUUe:NbYdbaEzUsgbnKhmIOCGnL/zNc2GUmB
TLSH T129942352B578D937D8F34BBE0075DBB62EEDB93E43725D4307102B2A7E954829B4B220
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter amznemu
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Lyonetia
Issuer:Lyonetia
Algorithm:sha256WithRSAEncryption
Valid from:2025-10-29T01:07:44Z
Valid to:2026-10-29T01:07:44Z
Serial number: 555d886fc8e0850f9a4b736dd5329624baba45bf
Thumbprint Algorithm:SHA256
Thumbprint: ca940ca51326ec62da45356ae992003c397c8ec9149f52be9004a015aeac9da8
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
108
Origin country :
ID ID
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
GuLoader
an XOR decryption key and an extracted component
GuLoader
a c2 URL, a useragent string, and a string XOR key
NSIS
extracted archive contents
Link:
https://research.acce.ciphertechsolutions.com/results/acbe74aa-4308-444b-848a-3e0fcd53202c/
Malware family:
remcos
Create hunting rule
ID:
1
File name:
07987330a39b91cf40b6709f3a2de243aed4fe6a2db4c283ad556acabfb11a5b.zip
Verdict:
Malicious activity
Analysis date:
2025-12-03 02:03:02 UTC
Tags:
arch-exec remcos rat auto-reg
Link:
https://app.any.run/tasks/21d3b71c-5909-44ea-a995-2948dd7db61a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/42406/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692f9a56264b106bd646300c
Tags:
shellcode sage blic
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole fingerprint installer installer installer-heuristic microsoft_visual_cc nsis overlay signed
Link:
https://www.filescan.io/uploads/69313207bc15eab491f413dc/reports/1936e777-88b1-4110-990d-e864ec9823c4/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-02T21:03:00Z UTC
Last seen:
2025-12-05T11:38:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan-Dropper.Win32.Agentb.gen
Link:
https://opentip.kaspersky.com/f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4caedd8d-24f6-44a9-9186-bc35e763bcfc
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/13ff00b8561513dcc1503a5ba21f3027
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-12-03 00:49:17 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=632oxkwra7vi27fdnaqpfttn2qfubyaew4ghmvwob276myqa7srq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery persistence rat
Link:
https://tria.ge/reports/251204-htzy2scs4a/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Remcos family
Malware Config
C2 Extraction:
91.231.222.182:2404
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0ed3e0fa-e5c9-4ced-9635-bbf5c2307243
Unpacked files
SH256 hash:
f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3
MD5 hash:
13ff00b8561513dcc1503a5ba21f3027
SHA1 hash:
25a3a7d4bc2ef462dc678e356d02bfe5d9c1d458
Link:
https://www.unpac.me/results/76008680-e613-42ad-85eb-1c8fda441850/
SH256 hash:
6982bce48fee9b950a50a94cdb52f122c226f34f649040f63e50fca27a3c33d2
MD5 hash:
82234c8e6c4f22d8ddc367d9a50a5b5b
SHA1 hash:
b8f708f4ccf2b508400a46e1619c98cc7a8dca28
Link:
https://www.unpac.me/results/76008680-e613-42ad-85eb-1c8fda441850/
SH256 hash:
c863ed0889a2b399d4b6d5a876580a54e41f8251514d2b1c19be01cd1330611f
MD5 hash:
f97e0a5e7a5a29283748336a7738d417
SHA1 hash:
bfc36946182f2afe7c4b00d7c3ef2ab17824cc7f
Link:
https://www.unpac.me/results/76008680-e613-42ad-85eb-1c8fda441850/
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
Link:
https://www.unpac.me/results/76008680-e613-42ad-85eb-1c8fda441850/
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/f6f4ebaad107ea8d7ca36820f2ce6dd40b40e004b70c7656ce0ebfe66200fca3

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:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

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/42406/

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