MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8a41eb98178ca2b5158c079616022de80ff2335b5cdbc7ca856bac72324eb17e. 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
GuLoader
Vendor detections: 12
| SHA256 hash: | 8a41eb98178ca2b5158c079616022de80ff2335b5cdbc7ca856bac72324eb17e |
|---|---|
| SHA3-384 hash: | e2c9b89b3f0aed6f6e48e59fca1ef23753ecee7ff344386f7958d624946eef8315c962056fa566b8a4a3d7ab83b7bd7d |
| SHA1 hash: | 636f24e54f8005eca72719e2de37bec21f1fedcc |
| MD5 hash: | e4a206b5122ff8e12aea36a46437a0ff |
| humanhash: | don-tango-carbon-march |
| File name: | 8a41eb98178ca2b5158c079616022de80ff2335b5cdbc7ca856bac72324eb17e |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 449'336 bytes |
| First seen: | 2026-02-05 15:58:08 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6e7f9a29f2c85394521a08b9f31f6275 (326 x GuLoader, 65 x AgentTesla, 63 x RemcosRAT) |
| ssdeep | 12288:PMwtn90cUBQ2L2WUL67pw5RDuQ36PUJ9jXTj:PMwP/UB7L2WJpmRyQ36sbn |
| Threatray | 2'546 similar samples on MalwareBazaar |
| TLSH | T11DA4BFB9FE18D4D1D01553B43836A835FB29DF16E4B8422FB9B9761918322CB642BD0F |
| 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 |
| dhash icon | b8f4727478ce86e6 (5 x GuLoader, 3 x RemcosRAT) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Fishers |
|---|---|
| Issuer: | Fishers |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-01-12T06:00:23Z |
| Valid to: | 2027-01-12T06:00:23Z |
| Serial number: | 63b36a2543102ddb60a79394e353b39667360567 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | fbe70895db5f2d9529f6ddc5831793dceb3b6ea6aebb4a9c1a9789bd936a657b |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
132
Origin country :
HUVendor 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
Malware family:
remcos
ID:
1
File name:
8a41eb98178ca2b5158c079616022de80ff2335b5cdbc7ca856bac72324eb17e
Verdict:
Malicious activity
Analysis date:
2026-02-05 23:39:36 UTC
Tags:
remcos rat auto-reg
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
95.7%
Tags:
injection virus blic
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-28T19:24:00Z UTC
Last seen:
2026-02-07T12:32:00Z UTC
Hits:
~10000
Verdict:
Suspicious
Score:
98%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Backdoor.Remcos
Status:
Suspicious
First seen:
2026-01-28 22:56:49 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
20 of 36 (55.56%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 2'536 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost discovery persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Remcos family
Malware Config
C2 Extraction:
130.12.182.225:2404
Unpacked files
SH256 hash:
8a41eb98178ca2b5158c079616022de80ff2335b5cdbc7ca856bac72324eb17e
MD5 hash:
e4a206b5122ff8e12aea36a46437a0ff
SHA1 hash:
636f24e54f8005eca72719e2de37bec21f1fedcc
SH256 hash:
acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
MD5 hash:
6e55a6e7c3fdbd244042eb15cb1ec739
SHA1 hash:
070ea80e2192abc42f358d47b276990b5fa285a9
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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