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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03d10e05ff7dfcfaf806ce522d193c783d79572067dd408df70f753af308250c. 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: 6


Intelligence 6 IOCs YARA 2 File information Comments

SHA256 hash: 03d10e05ff7dfcfaf806ce522d193c783d79572067dd408df70f753af308250c
SHA3-384 hash: 6390fdbeb3cf162e5fef410d9ea9fe574ce1aabbf8416bdbf9f7a36b2698be1aabdabdc4d1c78c47299d98b381dd247c
SHA1 hash: d668806acd8b438e3eb13649656b9c6b0f13ea5e
MD5 hash: bb1020cc325c711d6830fafdd5a78868
humanhash: high-batman-fillet-ink
File name:MOD_130-2T2025.iso
Download: download sample
Signature GuLoader
File size:1'179'648 bytes
First seen:2026-05-20 17:17:46 UTC
Last seen:Never
File type: iso
MIME type:application/x-iso9660-image
ssdeep 12288:Lz1mihEDmGcmoi6tHnLeJCcAsj3kXdm8L4okLw7rdpAEUdITc1:Lz8IEDmvmr2eZxj3yE9zQhpAbIT
TLSH T14345F104FB62AA13C5685B3A45A5D7762B73DD041902D71333ECBE6B3F336927D4128A
TrID 47.7% (.ISO/UDF) UDF disc image (2114500/1/6)
46.2% (.NULL) null bytes (2048000/1)
5.7% (.HTP) HomeLab/BraiLab Tape image (256000/1)
0.1% (.ATN) Photoshop Action (5007/6/1)
0.0% (.ISO) ISO 9660 CD image (2545/36/1)
Magika iso
Reporter TomU
Tags:GuLoader iso

Intelligence


File Origin
# of uploads :
1
# of downloads :
31
Origin country :
CH CH
File Archive Information

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

File name:MOD 130-2T2025.exe
File size:629'037 bytes
SHA256 hash: 6c0377a45f934deee9f135f6132f79ba3ca5c761403533c92f0df5b8709576cb
MD5 hash: 51303f2317cfc9c7b99526371616c2dc
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Malware configuration found for:
Archives NSIS
Details
Archives
extracted archive contents
NSIS
extracted archive contents
Verdict:
Malicious
File Type:
iso
First seen:
2025-07-23T21:59:00Z UTC
Last seen:
2026-04-27T05:06:00Z UTC
Hits:
~1000
Gathering data
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-07-24 03:59:40 UTC
File Type:
Binary (Archive)
Extracted files:
8
AV detection:
18 of 36 (50.00%)
Threat level:
  5/5
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

Malspam

GuLoader

iso 03d10e05ff7dfcfaf806ce522d193c783d79572067dd408df70f753af308250c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments