MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f96b54b3cc761ae3cef2bc3455a2d31b0f14ef0165e874adfcf09e20098059ed. 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: 14
| SHA256 hash: | f96b54b3cc761ae3cef2bc3455a2d31b0f14ef0165e874adfcf09e20098059ed |
|---|---|
| SHA3-384 hash: | 2eaef09c00857f571b2cddf189dc3c1513685aad51561873e9e48f02650e47ecaae671c32db95fb8c07fd741395d6bb0 |
| SHA1 hash: | c5682b2acf92c056a30fa513b9eb6a9bac413d5f |
| MD5 hash: | 35a2fc86374a57aef3455cf38295433c |
| humanhash: | early-minnesota-october-mobile |
| File name: | f96b54b3cc761ae3cef2bc3455a2d31b0f14ef0165e874adfcf09e20098059ed |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 439'712 bytes |
| First seen: | 2025-12-08 16:00:11 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:VMwURM+MIJleUURjy4Y45c41lIlj+Tev4UVjNS:VMwURM+MIJliQs5jle+TeQURNS |
| Threatray | 2'382 similar samples on MalwareBazaar |
| TLSH | T1EF9413173564C623C99149311E26DABBEEE16A3A68740B0F3760771A7C513E23E0B3B7 |
| 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 | 80c0f1f1f1e0ec08 (1 x GuLoader, 1 x AgentTesla) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Backfields |
|---|---|
| Issuer: | Backfields |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-10-19T01:39:07Z |
| Valid to: | 2026-10-19T01:39:07Z |
| Serial number: | 16d21485d23c38d6ed8b8a7ff531f4498743d576 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 1f4a2f9f7e249dca30d097dbad7a779af16bed0ea310c344e2609698adc5e729 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
117
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
GuLoader
NSIS
Details
GuLoader
a c2 URL, a useragent string, and a string XOR key
GuLoader
an XOR decryption key and an extracted component
NSIS
extracted archive contents
Malware family:
n/a
ID:
1
File name:
_f96b54b3cc761ae3cef2bc3455a2d31b0f14ef0165e874adfcf09e20098059ed.exe
Verdict:
Malicious activity
Analysis date:
2025-12-08 16:59:04 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
94.9%
Tags:
injector virus blic
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Searching for the window
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic microsoft_visual_cc nsis overlay signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-27T06:55:00Z UTC
Last seen:
2025-12-10T14:04:00Z UTC
Hits:
~1000
Detections:
HEUR:Backdoor.Win32.Androm.gen Trojan-Downloader.Win32.Minix.sb Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba Packed.NSIS.Krynis.sb
Gathering data
Score:
73%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Verdict:
Malicious
Threat:
Trojan.NSIS.Makoob
Threat name:
Win32.Trojan.Etset
Status:
Malicious
First seen:
2025-11-27 13:40:39 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
17 of 36 (47.22%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 2'372 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
discovery
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 NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
6bf9cccd8a600f4d442efe201e8c07b49605ba35f49a4b3ab22fa2641748e156
MD5 hash:
48f3e7860e1de2b4e63ec744a5e9582a
SHA1 hash:
420c64d802a637c75a53efc8f748e1aede3d6dc6
SH256 hash:
7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
MD5 hash:
564bb0373067e1785cba7e4c24aab4bf
SHA1 hash:
7c9416a01d821b10b2eef97b80899d24014d6fc1
SH256 hash:
f96b54b3cc761ae3cef2bc3455a2d31b0f14ef0165e874adfcf09e20098059ed
MD5 hash:
35a2fc86374a57aef3455cf38295433c
SHA1 hash:
c5682b2acf92c056a30fa513b9eb6a9bac413d5f
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.52
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.
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.