MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d6bfe5a28025a35b9387c74ade6792d36be2a3c32e971c2fa4cfdd0dea56e04f. 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

Formbook

Vendor detections: 6

Intelligence 6 IOCs YARA 14 File information Comments

SHA256 hash:	d6bfe5a28025a35b9387c74ade6792d36be2a3c32e971c2fa4cfdd0dea56e04f
SHA3-384 hash:	468e93aef0ee081c050b74c3557c4cd1adb96322d2890b396ff1a2a6a91dfa5ab307bd71dbbf7263560d7bdae25f23a6
SHA1 hash:	6ae8a95c8c09abfb790a50c30a3acedfa80e1dd4
MD5 hash:	5e9cb72c689d8629f5fde4b3e0e638bc
humanhash:	kitten-idaho-india-oscar
File name:	sheetsexe.iso
Download:	download sample
Signature	Formbook Create hunting rule
File size:	378'880 bytes
First seen:	2025-07-16 11:14:07 UTC
Last seen:	Never
File type:	iso
MIME type:	application/x-iso9660-image
ssdeep	3072:6cq3LM6YMIZyr4Jliv6cG/a5/mOwJpowPRJZiYzw4Db9ps3hyIOkOn7GSdGwJu5D:Vq3MMIE031vJpZGYFD8ROFXJu0D
TLSH	T1798407403BE88A1AF2FE2775F83660114BB5F856E47AC74EAE8860DD1D637489D0137B
TrID	85.5% (.NULL) null bytes (2048000/1) 10.6% (.HTP) HomeLab/BraiLab Tape image (256000/1) 3.3% (.STL) STereoLithography (binary, no rem) (80000/1) 0.2% (.ATN) Photoshop Action (5007/6/1) 0.1% (.ISO) ISO 9660 CD image (2545/36/1)
Magika	iso
Reporter	cocaman
Tags:	FormBook iso

cocaman

Malicious email (T1566.001)
From: ""Velibor Pilipovic" <accounts@peacocks.sbs>" (likely spoofed)
Received: "from fmail.timcj.ro (unknown [5.2.196.81]) "
Date: "Tue, 15 Jul 2025 06:05:18 -0700"
Subject: "Order 202913"
Attachment: "sheetsexe.iso"

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

File Archive Information

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

File name:	sheetsexe.exe
File size:	326'656 bytes
SHA256 hash:	26f52d29815a25e021c0ac37bb0712833cb21c3b4e97ccd5b35199de3b3f2e92
MD5 hash:	b044abe166330aaf79e842d232d71377
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=687789943e506f63f5a41034

Tags:

n/a

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

base64 context-iso expand lolbin reconnaissance

Link:

https://www.filescan.io/uploads/687789997bc45bdee1ae456d/reports/08122090-a735-43b4-a64d-35355df0a0a9/overview

Verdict:

Malicious

Labled as:

MSIL_Agent.KPB.gen

Link:

https://www.hybrid-analysis.com/sample/d6bfe5a28025a35b9387c74ade6792d36be2a3c32e971c2fa4cfdd0dea56e04f

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d6bfe5a28025a35b9387c74ade6792d36be2a3c32e971c2fa4cfdd0dea56e04f/

Threat name:

ByteCode-MSIL.Packed.Generic

Status:

Suspicious

First seen:

2025-07-15 13:21:18 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

14 of 38 (36.84%)

Threat level:

1/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=2276liuaewrvxe4hy5fn4z4s2nv6fi6df2lryl5ez7oq32sw4bhq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:um09 discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/250716-nrxzkadq8z/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Formbook payload

Formbook

Formbook family

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.05

Link:

https://yomi.yoroi.company/submissions/d6bfe5a28025a35b9387c74ade6792d36be2a3c32e971c2fa4cfdd0dea56e04f

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:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	Lumma_Stealer_Detection Create hunting rule
Author:	ashizZz
Description:	Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:	https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_EXE_in_ISO Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects ISO files that contains an Exe file. Does not need to be malicious
Reference:	Internal Research

Rule name:	SUSP_VBS_in_ISO Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects ISO files that contain VBS functions
Reference:	Internal Research

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)