MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31bd09cfc930f5d12ebdac916c2b354ed5af78d6a21b64069b953a11bc2939e5. 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: 8

Intelligence 8 IOCs YARA 11 File information Comments

SHA256 hash:	31bd09cfc930f5d12ebdac916c2b354ed5af78d6a21b64069b953a11bc2939e5
SHA3-384 hash:	815b12f8c27f72fed0a15f383d1fd139584e0ca57a493869fa487678fe7f517f38408d57ffcc212fdff18d77c085087f
SHA1 hash:	8c3ae3bcefce80120019209070042a32871d15bf
MD5 hash:	2ddc652810b3d38856695d7178fabdcb
humanhash:	nebraska-montana-avocado-juliet
File name:	PURCHASE ORDER.zip
Download:	download sample
Signature	Formbook Create hunting rule
File size:	566'949 bytes
First seen:	2025-03-11 09:52:23 UTC
Last seen:	Never
File type:	zip
MIME type:	application/zip
ssdeep	12288:wcUAi0TglCYLI5y5B5E1vAvY4sto7lyTRpIWWMOQBT:wcUAP+gVZDQYRv1p
TLSH	T161C42308BC1F5ED2A692E1988D64030F737E84B6179C37A22A44FA925774763F9DF903
Magika	zip
Reporter	cocaman
Tags:	zip

cocaman

Malicious email (T1566.001)
From: "head-office@agrexco.com" (likely spoofed)
Received: "from [195.211.191.129] (unknown [195.211.191.129]) "
Date: "11 Mar 2025 02:51:57 -0700"
Subject: "RE: PURCHASE ORDER"
Attachment: "PURCHASE ORDER.zip"

Intelligence

File Origin

# of uploads :

# of downloads :

520

Origin country :

File Archive Information

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

File name:	u8IGK20iKZ9Iv7o.exe
File size:	621'056 bytes
SHA256 hash:	6654e909452d713f3f51aa800e0633bbc63e859bb3f63f5c833273e516f1c3d3
MD5 hash:	e866fd7dc0e7fee2e8f0432f7ae69df5
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67d006864fd7d3fd0e082954

Tags:

virus shell msil

Result

Verdict:

Unknown

File Type:

PE File

Link:

https://app.docguard.net/31bd09cfc930f5d12ebdac916c2b354ed5af78d6a21b64069b953a11bc2939e5/results/dashboard

Verdict:

Suspicious

Labled as:

Troj/Krypt

Link:

https://www.hybrid-analysis.com/sample/31bd09cfc930f5d12ebdac916c2b354ed5af78d6a21b64069b953a11bc2939e5

Result

Verdict:

UNKNOWN

Link:

https://labs.inquest.net/dfi/sha256/31bd09cfc930f5d12ebdac916c2b354ed5af78d6a21b64069b953a11bc2939e5

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Score:

100%

Verdict:

Malware

File Type:

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:my18 discovery execution rat spyware stealer trojan

Link:

https://tria.ge/reports/250311-mkgtbs1tb1/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Checks computer location settings

Command and Scripting Interpreter: PowerShell

Formbook payload

Formbook

Formbook family

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/31bd09cfc930f5d12ebdac916c2b354ed5af78d6a21b64069b953a11bc2939e5

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:	AgentTesla_DIFF_Common_Strings_01 Create hunting rule
Author:	schmidtsz
Description:	Identify partial Agent Tesla strings

Rule name:	NET 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:	Suspicious_Latam_MSI_and_ZIP_Files Create hunting rule
Author:	eremit4, P4nd3m1cb0y
Description:	Detects suspicious .msi and .zip files used in Latam banking trojan campaigns.

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