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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b
SHA3-384 hash: 01eeefa9d9b0ec8eebb8e47b4cfbf9431298371765fcddc83228221a8c4ccb1a5b9ef2a2d126f5d0ef22b1f79bda9f4a
SHA1 hash: ae1f89c07e71d816f2e08c22387938826362c503
MD5 hash: b16cd34a161ba0048e6eda053fda7c51
humanhash: papa-nevada-double-diet
File name:INVOICE.bat
Download: download sample
Signature GuLoader
Create hunting rule
File size:379'897 bytes
First seen:2025-09-29 10:23:47 UTC
Last seen:2025-10-09 15:09:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9a16e282eba7cc710070c0586c947693 (37 x GuLoader, 15 x RemcosRAT, 11 x VIPKeylogger)
ssdeep 6144:S7rhzU6GCXFWzSOWhdLMgWER446KD+Wy/8X7UjnoXZULasZy9AVkOiqPjPjsnM:YzUrCsz5WhUER4UjykXIjnTzZy9X9
TLSH T1F984230122F0E4B7DC1193B50D772BB62FE06D1149E4DBC32B06FB5DA839913992F992
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 c4dadadad2f492c2 (148 x GuLoader, 51 x RemcosRAT, 23 x VIPKeylogger)
Reporter cocaman
Tags:bat exe GuLoader payment

Intelligence

File Origin
# of uploads :
3
# of downloads :
155
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
Artifacts-2025-09-29_00-56-43Z.zip
Verdict:
Malicious activity
Analysis date:
2025-09-29 00:56:56 UTC
Tags:
arch-exec guloader
Link:
https://app.any.run/tasks/eb7c213a-7425-4d6d-b676-0a8cf11976e7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/29411/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68da5e5e40b7da0b4eb8b6bc
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file
Delayed reading of the file
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context installer masquerade microsoft_visual_cc obfuscated overlay packed packer_detected
Link:
https://www.filescan.io/uploads/68da5e5f6c140e5b35ff3aed/reports/11f4e61f-3003-426c-b043-99180e9e03eb/overview
Verdict:
Malicious
Labled as:
Tedy.Generic
Link:
https://www.hybrid-analysis.com/sample/8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-28T20:32:00Z UTC
Last seen:
2025-09-28T20:32:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba Packed.NSIS.Krynis.sb Trojan.Win32.GuLoader.sb Trojan.Win32.GuLoader.ddh Trojan.NSIS.Pakes.Krynis.sb Trojan-Downloader.Win32.Minix.sb
Link:
https://opentip.kaspersky.com/8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a5b51d6d-2552-4375-943b-149c6c73d663
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1785784
Signature
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for submitted file
Sample has a suspicious name (potential lure to open the executable)
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/b16cd34a161ba0048e6eda053fda7c51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b/
Verdict:
Malicious
Threat:
Family.GULOADER
Link:
https://tip.neiki.dev/file/8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-09-28 23:25:50 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rufmh7f7b7gw52hlxeepq3glo5vxx5mqtofp3lhfgfcxo6kw4enq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
error
GuLoader
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader installer
Link:
https://tria.ge/reports/250929-mffqgazwfx/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/49da05b9-a882-49b4-b36e-d63575dd38e3
Unpacked files
SH256 hash:
8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b
MD5 hash:
b16cd34a161ba0048e6eda053fda7c51
SHA1 hash:
ae1f89c07e71d816f2e08c22387938826362c503
Link:
https://www.unpac.me/results/4762fffd-8d6c-4cae-bbc9-77a9a9defe21/
SH256 hash:
3abcd46f292441c492b0bb4b41d3abc801cc27311756db74b8def9856e054d27
MD5 hash:
a73442b00efcd36f78ff8f59ae772b20
SHA1 hash:
5ec7c7c7f4e26182059c0628c83f3ef5214a8a8a
Link:
https://www.unpac.me/results/4762fffd-8d6c-4cae-bbc9-77a9a9defe21/
SH256 hash:
7853be9190489ba84dae8232e9a967cec02d941732cb4137bc9ae6a392e89fb8
MD5 hash:
3fbd78c889fa40a2e5567b980c57b7db
SHA1 hash:
303564bfa6fd5ab7a65d35ae1cd14a05643b6b5d
Link:
https://www.unpac.me/results/4762fffd-8d6c-4cae-bbc9-77a9a9defe21/
SH256 hash:
a44ca08afb3f6bafd76aa35c259f3d599fe34f6f49ea5118626c1c1a540b0f03
MD5 hash:
81e268e27dbbcadbf116b5a9402195ab
SHA1 hash:
bd2b701b2e5e279786e179bceee2dc132a2afc37
Link:
https://www.unpac.me/results/4762fffd-8d6c-4cae-bbc9-77a9a9defe21/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8d0ac3fcbf0f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.89
Link:
https://yomi.yoroi.company/submissions/8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

GuLoader

rar 81536900f26d60e3b6ff4a5f381c339dc0c8a7b83da8050ccf9e70d3465dc877

GuLoader

Executable exe 8d0ac3fcbf0fcd6ee8ebb908f86ccb776b7bf5909b8afdace53145777956e11b

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 81536900f26d60e3b6ff4a5f381c339dc0c8a7b83da8050ccf9e70d3465dc877
Cape
Cape
https://www.capesandbox.com/analysis/29411/
  
Dropped by
MD5 107d954162a71e93065aeabd4bd1771b

Comments