MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe
SHA3-384 hash: ea5a7f55505c5d215223e4515b47c5d8198caa3253a40e58ba2ea69d7f93a322260cc04ddb55468293e5105a9dcfa2dc
SHA1 hash: f27d7fa2d9dd2140bbfcdbe269879e6623102405
MD5 hash: 7b09b2e67f2cd0fb3d34ec39ab76d087
humanhash: bacon-kitten-river-victor
File name:7b09b2e67f2cd0fb3d34ec39ab76d087.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'181'895 bytes
First seen:2026-04-09 14:23:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 46ce5c12b293febbeb513b196aa7f843 (22 x GuLoader, 12 x RemcosRAT, 5 x VIPKeylogger)
ssdeep 24576:d4ojf+x3aYsRpPhcbYJdMDTvzaHJbyUhFMwVkgrqPpjevvWU9cOJ:aAQ3UpPCY5HJb7nMwugrqJieeJ
Threatray 2'484 similar samples on MalwareBazaar
TLSH T1E24523D4B5E8C652D29202B0D633B99386BDEC9F0E74DB4F67433E88793AC8A40574D5
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon f0dcce82868cbce8 (1 x GuLoader)
Reporter abuse_ch
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
146
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Link:
https://research.acce.ciphertechsolutions.com/results/61a16ae0-bb38-4255-aab9-b6cecfde5173/
Malware family:
n/a
ID:
1
File name:
7b09b2e67f2cd0fb3d34ec39ab76d087.exe
Verdict:
Malicious activity
Analysis date:
2026-04-09 14:24:30 UTC
Tags:
netreactor purehvnc
Link:
https://app.any.run/tasks/2e27fabd-3e60-415d-bdd3-fafcaed26b32

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/60973/
Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69d7b6af66ab6d001dd09ec8
Tags:
injection obfusc virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug fingerprint installer installer installer-heuristic microsoft_visual_cc nsis soft-404
Link:
https://www.filescan.io/uploads/69d7b6a7799d5bf325f4780d/reports/6102aef2-baeb-4b27-8f12-bd05ec056f33/overview
Verdict:
Malicious
Labled as:
Trojan_Win32_Wacatac_B_ml
Link:
https://www.hybrid-analysis.com/sample/bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-07T10:41:00Z UTC
Last seen:
2026-04-11T00:20:00Z UTC
Hits:
~100
Detections:
Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba Trojan-Downloader.Win32.Minix.sb Trojan-Downloader.Win32.Minix.cko Trojan-PSW.Win32.Disco.sb Trojan-PSW.MSIL.PureLogs.sb Backdoor.Androm.HTTP.Download Trojan.Win32.Guloader.sb Packed.NSIS.Krynis.sb Trojan-PSW.Win32.Coins.sb Trojan-PSW.MSIL.Stealer.sb Trojan-PSW.MSIL.Agent.sb PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/3f0d4922-59f8-42e0-992c-71ca2543181d
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1896054
Signature
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected GuLoader
Yara detected MSIL Injector
Behaviour
Behavior Graph:
Download SVG
Score:
95%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe/
Verdict:
Malicious
Threat:
Family.PUREHVNC
Link:
https://tip.neiki.dev/file/bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xp4gme4f7n4sdz4653ojmy4iixgerhzjmzjnuzk2tiahs2anz77a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
15f59282ba4232125d82540bcaf82e77047b209ca34c092c84061cd43e835ace
GuLoader
64864ac10f2be65fe3a7c632f629c20187fe9ca2181f97919d5c46f017a9e31c
GuLoader
7d9d785544a3b77ff7f68364d14973e3583300e69c1666794c1760e3613f0ea1
GuLoader
acf098d8c20fe81ae8e1375c1097b543f9bf8235d1d20821a7f3893fbcc99a26
GuLoader
bdcbaac3992e430d7db16978bc9b7ae1a4b6da4a04d471054367ff7ca4e1c37b
GuLoader
c5b19f04f5eadd03d2f8487c69a6006c39f3160ca225c8b293f35d836810c50c
GuLoader
c7175d6f8c00015dcbe488fc18ad81e7893417ed7c094eb8f87dc1b1f2a60a94
GuLoader
d25cb20e8516de827aaac00dd75638290b28d8a4ab4c8721c4f0d9cccd33f2c7
GuLoader
e1657c68bc63afdb87864be060e4064e8d7c1e1b5e7fe431ae04f6b7a5fb2413
GuLoader
error
GuLoader
+ 2'474 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/260409-rq3efabt4p/
Behaviour
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
Checks installed software on the system
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Unpacked files
SH256 hash:
bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe
MD5 hash:
7b09b2e67f2cd0fb3d34ec39ab76d087
SHA1 hash:
f27d7fa2d9dd2140bbfcdbe269879e6623102405
Link:
https://www.unpac.me/results/89bf2db8-bb1f-4236-aaf6-bd40b41fd53a/
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
Link:
https://www.unpac.me/results/89bf2db8-bb1f-4236-aaf6-bd40b41fd53a/
SH256 hash:
b1350f487692057c8ffde75dcc55287a52a3272240d4d4912f24464b27551fc0
MD5 hash:
8f0e7415f33843431df308bb8e06af81
SHA1 hash:
1314272e6ad3be1985d4a1607b890a34b0bde8b5
Link:
https://www.unpac.me/results/89bf2db8-bb1f-4236-aaf6-bd40b41fd53a/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bbf8661385fb/report/overview.html
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/bbf8661385fb7921e79eeedc96638845cc489f296652da655a9a0079680dcffe

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:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

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/60973/

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