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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43f6f999b13f232d86d059735e43d9ac2cdded3be9ec36a5aeb27f655e008c68. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43f6f999b13f232d86d059735e43d9ac2cdded3be9ec36a5aeb27f655e008c68
SHA3-384 hash: d739bb00300e3ce496f69746e0874483a3f21ddbc026d76ceb66b5430c68adb5509808a76bfcf8a016d435cec9a4f34c
SHA1 hash: 5e3675b015c4a3e9fe2d4df9b3f4f65a2126e1a8
MD5 hash: 452c4a89c86069b52af745cf971f3ea7
humanhash: golf-berlin-pluto-romeo
File name:Orden de compra-65678768.pdf.rar
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'240'651 bytes
First seen:2025-10-21 05:57:34 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 24576:Ckj399o1RY/2YS8uZPq4+RxcnGyy+db97LWfKsOGbp60lczWP2wb:Vj3c1RuPYZURxcnGtGxvWVOM6Acsbb
TLSH T1D545333C3AD58B5B42EE720097A3E63D17997E155528C0C2FE8076B7CCFA497DAB0921
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter lowmal3
Tags:file-pumped GuLoader rar

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
DE DE
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:Orden de compra-65678768.pdf9875679876798766.exe
Pumped file This file is pumped. MalwareBazaar has de-pumped it.
File size:127'926'272 bytes
SHA256 hash: 15f3bbe18bcf5ae5f0d97025aa760344cf6205eb9a461d4c576ff9e8e16f0529
MD5 hash: 7fa739bc145ebf875203acd7c4d4aa2a
De-pumped file size:117'760 bytes (Vs. original size of 127'926'272 bytes)
De-pumped SHA256 hash: 0b4df0b17b6b08a77e2d47bbf10258565531ce7df4c9f454f3e8441d4dffc075
De-pumped MD5 hash: be6e2feb5fc79e3322fce7edb44351e7
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f720da3edd081eba40453b
Tags:
virus nsis
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole guloader installer microsoft_visual_cc nsis
Link:
https://www.filescan.io/uploads/68f721cec85c5c56972ff6b9/reports/a3155a4d-4121-494a-b6b2-b9c76a89278a/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/43f6f999b13f232d86d059735e43d9ac2cdded3be9ec36a5aeb27f655e008c68
Verdict:
Malicious
File Type:
rar
First seen:
2025-10-08T15:07:00Z UTC
Last seen:
2025-10-22T23:39:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/43f6f999b13f232d86d059735e43d9ac2cdded3be9ec36a5aeb27f655e008c68/results?tab=lookup
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Rar Archive
Link:
https://app.malva.re/file/452c4a89c86069b52af745cf971f3ea7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/43f6f999b13f232d86d059735e43d9ac2cdded3be9ec36a5aeb27f655e008c68/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-10-08 10:15:25 UTC
File Type:
Binary (Archive)
Extracted files:
11
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ip3ptgnrh4rs3bwqlfzv4q6zvqwn33j35hwdnjnowj7wkxqarrua._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:guloader discovery downloader keylogger spyware stealer trojan
Link:
https://tria.ge/reports/251021-np3f9shv2h/
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
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Looks up external IP address via web service
Loads dropped DLL
AgentTesla
Agenttesla family
Guloader family
Guloader,Cloudeye
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/43f6f999b13f232d86d059735e43d9ac2cdded3be9ec36a5aeb27f655e008c68

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

File information

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

Malspam

GuLoader

rar 43f6f999b13f232d86d059735e43d9ac2cdded3be9ec36a5aeb27f655e008c68

(this sample)

GuLoader

Executable exe 0b4df0b17b6b08a77e2d47bbf10258565531ce7df4c9f454f3e8441d4dffc075

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 0b4df0b17b6b08a77e2d47bbf10258565531ce7df4c9f454f3e8441d4dffc075
  
Dropping
MD5 be6e2feb5fc79e3322fce7edb44351e7

Comments