MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fdfbac59f423a35014842db3b062b5619bc4d713fcf6eb819492a8cd67ebb329. 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: | fdfbac59f423a35014842db3b062b5619bc4d713fcf6eb819492a8cd67ebb329 |
|---|---|
| SHA3-384 hash: | 75a7607d046c795664caa164c2563ca341769845df13c8b712170c0f06faf510879bbefebe5c6ce489d45eb07a955d93 |
| SHA1 hash: | d25d7249926d69dbfdc5bee2e2c4f9fa70e02933 |
| MD5 hash: | 31dc5cd398bdb4c9ff785250a4f64bfd |
| humanhash: | sweet-arizona-xray-lake |
| File name: | fdfbac59f423a35014842db3b062b5619bc4d713fcf6eb819492a8cd67ebb329 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 408'520 bytes |
| First seen: | 2025-12-08 14:34:50 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:lT2eAUWPORauijsaYFAwV6X/ciIvpWZw+fkIP:lT2eUHc6krWZ8IP |
| TLSH | T1F89402007399CC7BF4324132C875E7F29629ED9A45E49643475C7E8B3CB4A856AFE2C1 |
| 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 | 34fcf0d4dcf0d2cc (9 x GuLoader, 4 x MassLogger, 4 x VIPKeylogger) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
108
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Revised_Beneficiary_Information_Geoman DNY Pte Ltd.pdf.exe
Verdict:
Suspicious activity
Analysis date:
2025-11-10 12:05:16 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Verdict:
Malicious
Score:
99.1%
Tags:
injection obfusc virus
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:
2025-11-09T21:18:00Z UTC
Last seen:
2025-12-10T12:11:00Z UTC
Hits:
~1000
Verdict:
Unknown
Score:
90%
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
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2025-11-10 00:24:25 UTC
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader execution persistence ransomware
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Badlisted process makes network request
Checks computer location settings
Guloader family
Guloader,Cloudeye
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
fdfbac59f423a35014842db3b062b5619bc4d713fcf6eb819492a8cd67ebb329
MD5 hash:
31dc5cd398bdb4c9ff785250a4f64bfd
SHA1 hash:
d25d7249926d69dbfdc5bee2e2c4f9fa70e02933
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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