MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5f1774ad1ea70c354de73d304be2cde0d1fe440772b8d1fce3defde1a513f64. 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: 5


Intelligence 5 IOCs YARA 2 File information Comments

SHA256 hash: a5f1774ad1ea70c354de73d304be2cde0d1fe440772b8d1fce3defde1a513f64
SHA3-384 hash: 077fb6c6f8d18b7089ef10b838f83bc4ffbaf0876838fd508ebfad37795c69c256c73da20bbc97f5dbe98b47357a045f
SHA1 hash: 6e45763084e01c9044a84fe763e013daa4a25de8
MD5 hash: b79f5bbbe458b58e8762e89c8b88945b
humanhash: triple-illinois-leopard-spring
File name:Overdue.img
Download: download sample
Signature GuLoader
File size:1'245'184 bytes
First seen:2023-07-12 06:31:51 UTC
Last seen:Never
File type: img
MIME type:application/x-iso9660-image
ssdeep 12288:JhrrDqpAmCDi06TK5j40kSOCEk9dsfsbiu:Jhrre+m0NsK5kr/9o
TLSH T1964512526330D873D6E54BB24C7A0B36197B2D2B21B12B4B331CB99D3B77341DA0D6A6
TrID 50.6% (.ISO/UDF) UDF disc image (2114500/1/6)
49.0% (.NULL) null bytes (2048000/1)
0.1% (.ATN) Photoshop Action (5007/6/1)
0.0% (.ISO) ISO 9660 CD image (2545/36/1)
0.0% (.BIN/MACBIN) MacBinary 1 (1033/5)
Reporter cocaman
Tags:GuLoader img payment


Avatar
cocaman
Malicious email (T1566.001)
From: ""Finance" <bvbond007@sbcglobal.net>" (likely spoofed)
Received: "from chg.server1.ideacentral.com (unknown [173.236.106.130]) "
Date: "11 Jul 2023 21:12:22 -0400"
Subject: "Final Warning - Over Due Payment - Urgent Reminder!Final Warning - Over Due Payment - Urgent R...."
Attachment: "Overdue.img"

Intelligence


File Origin
# of uploads :
1
# of downloads :
97
Origin country :
CH CH
File Archive Information

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

File name:OVERDUE.EXE
File size:356'768 bytes
SHA256 hash: ab85d237bee85a4e9d28f837e04d0d45ce410705e2dbdbe7c6c64f7716614d0a
MD5 hash: ae340bfc442660f131a75fff9f357219
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Gathering data
Result
Verdict:
MALICIOUS
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-07-11 23:54:39 UTC
File Type:
Binary (Archive)
Extracted files:
5
AV detection:
12 of 38 (31.58%)
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:PE_Digital_Certificate
Author:albertzsigovits
Rule name:shellcode
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

img a5f1774ad1ea70c354de73d304be2cde0d1fe440772b8d1fce3defde1a513f64

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments