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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f516abc6cae79b7a7eae783392b943a0fc8a61d9e6d5f8dc0d50ebc73f680681. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f516abc6cae79b7a7eae783392b943a0fc8a61d9e6d5f8dc0d50ebc73f680681
SHA3-384 hash: a68d30e33cf54281788823cd3eaf2f56bc1744467f6d33584982e33d54e97532cd6ef6572526f006bf47b68998f2b067
SHA1 hash: 31e8516ddcd7dad1b1b39b0307414de474f58c47
MD5 hash: 02758369089c7aa6ed0ac54cbb627e1b
humanhash: fanta-georgia-tango-october
File name:invoiceXconfirmation.rar
Download: download sample
Signature GuLoader
Create hunting rule
File size:817'536 bytes
First seen:2026-05-20 18:26:27 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 24576:POVdSMlgHoD8YLs617QCphbshJZ841K7y1:POnZgQs615hiJZ8G1
TLSH T12C05338714A16B6DAD244393F3B2EB0228EF7AF61C9C551F0F19F9CF6DD0523006A95A
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter TomU
Tags:GuLoader rar

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
CH CH
File Archive Information

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

File name:invoice confirmation.exe
File size:905'874 bytes
SHA256 hash: 092b7de8fe08fbf5aad89b80f5b19e1469e1c66986fae44ca36c9fda366857a0
MD5 hash: 37bda1fc6b5d7299f70e6ff85fa68b13
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/8686a53e-3390-42a6-a198-73d203cab28d/
Detection(s):
Sanesecurity.Foxhole.Rar_fs2985.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.W32.Injector.QMJS-6779.10390.19631.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a0df28d4159ce11f601d3b1
Tags:
injection obfusc virus
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive installer installer installer-heuristic masquerade microsoft_visual_cc nsis reconnaissance
Link:
https://www.filescan.io/uploads/6a0e0408efbd399b39c03c67/reports/6cf3955e-ed38-41a5-b84d-69b66c18f6ca/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/f516abc6cae79b7a7eae783392b943a0fc8a61d9e6d5f8dc0d50ebc73f680681
Verdict:
Malicious
File Type:
rar
Link:
https://opentip.kaspersky.com/f516abc6cae79b7a7eae783392b943a0fc8a61d9e6d5f8dc0d50ebc73f680681/results?tab=lookup
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f516abc6cae79b7a7eae783392b943a0fc8a61d9e6d5f8dc0d50ebc73f680681/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-05-05 19:08:21 UTC
File Type:
Binary (Archive)
Extracted files:
23
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ulkxrwk46nxu7vopazzfokdud6iuyoz43k7rxankdv4op3ia2aq._file
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/f516abc6cae79b7a7eae783392b943a0fc8a61d9e6d5f8dc0d50ebc73f680681

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.

Malspam

GuLoader

rar f516abc6cae79b7a7eae783392b943a0fc8a61d9e6d5f8dc0d50ebc73f680681

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments