MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5983b0652c9fdd9ebec3d51adfd9a8b9c25a029347a25837deb856a8d8131dc. 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 4 File information Comments

SHA256 hash:	f5983b0652c9fdd9ebec3d51adfd9a8b9c25a029347a25837deb856a8d8131dc
SHA3-384 hash:	cda19a9e09abbb217dfec35946997f983100724be928c35ec7da0df9302279e6c2b91d8f24213d585ec9783f531aea8b
SHA1 hash:	fe324941c55ffda2800afcee5b65596c63b65f22
MD5 hash:	86dd8dbaa46e84409645a1135b0e627d
humanhash:	violet-colorado-table-neptune
File name:	doc pdf.rar
Download:	download sample
Signature	Formbook Create hunting rule
File size:	785'481 bytes
First seen:	2024-09-13 10:58:56 UTC
Last seen:	Never
File type:	rar
MIME type:	application/x-rar
ssdeep	12288:GO96YfKJcDeJh+rmg+Shp+bbBsaWE0QRIAcPAnUsmkF369Gzz+6yh/s/eyEfNh:UqImeOZ+Ip+3j0QRIAcYnUsmkFmGzzKR
TLSH	T1A4F42354AB70B5BC1C965C3E8E80549A07BED64BD405E3D0206BF7571CBE0B8BA8E1F2
TrID	61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika	rar
Reporter	cocaman
Tags:	rar

cocaman

Malicious email (T1566.001)
From: ""kiro.tsai" <kiro.tsai@yusin.com>" (likely spoofed)
Received: "from yusin.com (unknown [185.222.58.246]) "
Date: "13 Sep 2024 12:58:02 +0200"
Subject: "ARRIVAL MATERIAL - FCL - 4 CONTAINERS - WSS200115361"
Attachment: "doc pdf.rar"

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:	doc pdf.exe
File size:	1'264'640 bytes
SHA256 hash:	0d85faadca2fd253ac851a1bc6e089e2b80fdc752bba12fd834193e53a67c6fc
MD5 hash:	569b33b62d453dfe79e8a2ccaea1247d
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Detection(s):

Sanesecurity.Malware.27342.RarHeur.v5.HideExt.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66e41af8048bf838f7ad2f35

Tags:

Stealth Swotter

Gathering data

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/f5983b0652c9fdd9ebec3d51adfd9a8b9c25a029347a25837deb856a8d8131dc

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/f5983b0652c9fdd9ebec3d51adfd9a8b9c25a029347a25837deb856a8d8131dc/

Threat name:

Win32.Backdoor.FormBook

Status:

Malicious

First seen:

2024-09-13 07:27:32 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=6wmdwbsszh65t27mhvi237m2rooclibjgr5cla355ocwvdmbghoa._file

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

Threat name:

Formbook

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/f5983b0652c9fdd9ebec3d51adfd9a8b9c25a029347a25837deb856a8d8131dc

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:	AutoIT_Compiled Create hunting rule
Author:	@bartblaze
Description:	Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	SUSP_Imphash_Mar23_3 Create hunting rule
Author:	Arnim Rupp (https://github.com/ruppde)
Description:	Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:	Internal Research