MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d7708415c46c798ebbabab592026d1847c532ec9520f928ba4bc31215a21159. 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:	8d7708415c46c798ebbabab592026d1847c532ec9520f928ba4bc31215a21159
SHA3-384 hash:	557995befd7ae9a554ace95037196eba551ced946b8e39676942568eafcf258c07ae9098452d239fb3307fe34762ebd8
SHA1 hash:	e590d2079bb33a10e510fcd65cec6704f4d02747
MD5 hash:	2017542d3d2b5e1c31788fb7af0a6f4d
humanhash:	winner-robin-east-three
File name:	dos.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	458'752 bytes
First seen:	2020-08-03 07:32:14 UTC
Last seen:	2020-08-03 07:47:15 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	6144:qHAgbCa8sGQT6w46v8ILSJOt8azFtUG25dlE0Zp6:qHX8kTb46vpz81G27p6
Threatray	643 similar samples on MalwareBazaar
TLSH	60A46C317943C035C9290A7454B8A9C369793E7937A1CA1FB39A134C2F429ABBF5721F
Reporter	abuse_ch
Tags:	exe FormBook

abuse_ch

Malspam distributing Formbook:

HELO: krohne.com
Sending IP: 37.49.230.140
From: Ernstmeier GmbH & Co.KG <d.ye@krohne.com>
Subject: PO-ST0308
Attachment: PO-ST0308.xlsm

FormBook payload URL:
http://gaytanconstructioninc.com/dos.exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/37468/

Detection(s):

Win.Malware.Formbook-7399661-0

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Creating a file

Sending a UDP request

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj

Score:

60 / 100

Link:

https://www.joesandbox.com/analysis/407621

Signature

.NET source code contains very large array initializations

Malicious sample detected (through community Yara rule)

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8d7708415c46c798ebbabab592026d1847c532ec9520f928ba4bc31215a21159/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-03 07:34:07 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

25 of 29 (86.21%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=rv3qqqk4i3dzr252xk2zeatndbd4kmxmsuqpskf2jpbrefnccfmq._file

Verdict:

suspicious

Result

Malware family:

formbook

Score:

10/10

Tags:

rat family:formbook

Link:

https://tria.ge/reports/200803-7zhkahplyn/

Behaviour

Formbook Payload

Formbook family

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

Threat name:

Kryptik

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/8d7708415c46c798ebbabab592026d1847c532ec9520f928ba4bc31215a21159

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:	Formbook Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Formbook in memory
Reference:	internal research

Rule name:	win_formbook_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator