MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 64a71a666cb2d5f2e8f64e2c55e366e4a49eb78ad77ac6fae8c196c38166bc4b. 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: 13
| SHA256 hash: | 64a71a666cb2d5f2e8f64e2c55e366e4a49eb78ad77ac6fae8c196c38166bc4b |
|---|---|
| SHA3-384 hash: | 1ec2ffa5c3aa9e1b45e0a756b9fb184f0b0a4fb7ba1c5542182c2d6b3ccee3812c46e14d62678408d970eed7d178894e |
| SHA1 hash: | 24843ee0565868c183bad1cb478e5297b1c8fda6 |
| MD5 hash: | 682c8f7a8b5d10f741f3cfc531723ad5 |
| humanhash: | fish-fix-music-juliet |
| File name: | 64a71a666cb2d5f2e8f64e2c55e366e4a49eb78ad77ac6fae8c196c38166bc4b |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 951'720 bytes |
| First seen: | 2026-02-05 15:22:26 UTC |
| Last seen: | 2026-05-20 16:45:00 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f4639a0b3116c2cfc71144b88a929cfd (144 x GuLoader, 57 x Formbook, 46 x VIPKeylogger) |
| ssdeep | 24576:hGEZ9wajuN8sz3SqqhafmF/Oyasbn9o1NDQCGP:42wYuN8sTSDa+F/Oy1Y5S |
| Threatray | 2'517 similar samples on MalwareBazaar |
| TLSH | T1CF1512C5A581D643CCB0D0B2C9034EF7055B6D6ADA95353327D5BF2F387B9A2A32A213 |
| 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 | e088a432b2d27098 (4 x RemcosRAT, 3 x GuLoader) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | hngelaasene |
|---|---|
| Issuer: | hngelaasene |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-01-15T08:52:26Z |
| Valid to: | 2027-01-15T08:52:26Z |
| Serial number: | 14521129f47bda36444518b8404fa4483173b8d8 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | b40a934632c276c3dd45dbb13a9fb049e24da9a488ce203b735a6d54b5d0e924 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
118
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Malware family:
remcos
ID:
1
File name:
64a71a666cb2d5f2e8f64e2c55e366e4a49eb78ad77ac6fae8c196c38166bc4b
Verdict:
Malicious activity
Analysis date:
2026-02-05 17:57:53 UTC
Tags:
remcos rat auto-reg
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Verdict:
Malicious
Score:
95.7%
Tags:
shellcode injection virus
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-19T21:17:00Z UTC
Last seen:
2026-02-07T10:04:00Z UTC
Hits:
~1000
Verdict:
Unknown
Score:
99%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2026-01-20 01:01:26 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
23 of 36 (63.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 2'507 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 Windows 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:
130.12.181.94:2404
Unpacked files
SH256 hash:
64a71a666cb2d5f2e8f64e2c55e366e4a49eb78ad77ac6fae8c196c38166bc4b
MD5 hash:
682c8f7a8b5d10f741f3cfc531723ad5
SHA1 hash:
24843ee0565868c183bad1cb478e5297b1c8fda6
SH256 hash:
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
MD5 hash:
4add245d4ba34b04f213409bfe504c07
SHA1 hash:
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
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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