MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81d15499dbdfc176f42105554c45a7c836eff3330d8e23a4c9f99431c80137aa. 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: 7

Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash:	81d15499dbdfc176f42105554c45a7c836eff3330d8e23a4c9f99431c80137aa
SHA3-384 hash:	d9eef4d12a87e835f8bc2e290d7f3fc1fb66ca17d95ff57962fe0430dc71921c2273a3fffb0b758150e4da7433bfeb74
SHA1 hash:	976160d43365ba58333425d11edc6eef7fd81d28
MD5 hash:	cd6fb304e78881a2a4e39a0f0309511f
humanhash:	cup-twenty-butter-september
File name:	Documents.rar
Download:	download sample
Signature	Formbook Create hunting rule
File size:	649'630 bytes
First seen:	2023-06-08 08:08:11 UTC
Last seen:	Never
File type:	rar
MIME type:	application/x-rar
ssdeep	12288:3Ts9HPhIY0H10xrI9ZBgTVn49lABfK6/2AaSFBs3h5fpV3uyNcHE0MR:8HqvH10xURgTa29/VE5fpV3uRkz
TLSH	T160D423329584D0BE4322EB96E3E6307D05A794B6B6510C9DA7AC7D01BB86C14CEB49FC
TrID	58.3% (.RAR) RAR compressed archive (v-4.x) (7000/1) 41.6% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter	cocaman
Tags:	FormBook rar

cocaman

Malicious email (T1566.001)
From: ""Sudha J.F"<info@gitalco.com>" (likely spoofed)
Received: "from gitalco.com (unknown [185.222.57.71]) "
Date: "5 Jun 2023 05:26:54 +0200"
Subject: "RE: Revised BL"
Attachment: "Documents.rar"

Intelligence

File Origin

# of uploads :

# of downloads :

108

Origin country :

File Archive Information

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

File name:	Documents.exe
File size:	707'584 bytes
SHA256 hash:	19b7214fa574ae296ae0494841dbd55d213c422c8872867e1be8969bb6d0e812
MD5 hash:	f94ab334453121d31cfe16bef56d42b9
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Result

Verdict:

Unknown

File Type:

PE File

Link:

https://app.docguard.net/81d15499dbdfc176f42105554c45a7c836eff3330d8e23a4c9f99431c80137aa/results/dashboard

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

formbook packed

Link:

https://www.filescan.io/uploads/64818c9fac63cac41b535d2b/reports/bec742b8-30f4-40f6-8cc2-c9d51e8fd95f/overview

Verdict:

Malicious

Link:

https://www.hybrid-analysis.com/sample/81d15499dbdfc176f42105554c45a7c836eff3330d8e23a4c9f99431c80137aa

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

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

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/81d15499dbdfc176f42105554c45a7c836eff3330d8e23a4c9f99431c80137aa/

Threat name:

ByteCode-MSIL.Trojan.FormBook

Status:

Malicious

First seen:

2023-06-05 03:43:14 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=qhivjgo337axn5bbavkuyrnhza3o74ztbwhchjgj7gkddsabg6va._file

Result

Malware family:

n/a

Score:

5/10

Tags:

n/a

Link:

https://tria.ge/reports/230608-kta12add44/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

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/81d15499dbdfc176f42105554c45a7c836eff3330d8e23a4c9f99431c80137aa

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.