MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec8d87e7db1c4f69358cdd9de92c9f8d4077dc7b61b4ccb834bf2fe129279289. 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 2 File information Comments

SHA256 hash:	ec8d87e7db1c4f69358cdd9de92c9f8d4077dc7b61b4ccb834bf2fe129279289
SHA3-384 hash:	3a549c57349deb452cfe6badba062491bbc8f8b745af93130ab280a6fab37929654951316d979c36eee5de8bb1054182
SHA1 hash:	6ec5f57a41bff9255e62822f720c089cb372f422
MD5 hash:	dc81e74a59940379870c59aff72f1540
humanhash:	timing-cup-delaware-friend
File name:	8903-Dco2.exe
Download:	download sample
Signature	FormBook Create hunting rule
File size:	570'880 bytes
First seen:	2020-06-12 06:52:37 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	6144:CjThaaILoeLQcm1g6gMlBNYSi8H1dx8Y/wTnmmHTBmrvmjQYC2gc/qviOn:CjTILoFcGJNfdx82wzmKYz2z6
Threatray	60 similar samples on MalwareBazaar
TLSH	07C428B3D31CC9E1CDA512F4521E8EA70A507F5FA0D5A2D91DEDB1BBCB39225E1D0882
Reporter	abuse_ch
Tags:	exe FormBook Yahoo

abuse_ch

Malspam distributing FormBook:

HELO: sonic301-30.consmr.mail.ne1.yahoo.com
Sending IP: 66.163.184.199
From: abdul rehman memon <seyani_1234@yahoo.com>
Subject: FW: Payment Transfer
Attachment: 8903-Dco2.rar (contains "8903-Dco2.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/9126/

Detection(s):

SecuriteInfo.com.Variant.Ursu.887367.20719.1361.UNOFFICIAL

Gathering data

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-06-12 06:54:18 UTC

AV detection:

25 of 31 (80.65%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=5sgypz63drhwsnmm3wo6sle7rvahpxd3mg2mzobux4x6ckjhskeq._file

Verdict:

malicious

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook persistence rat spyware stealer trojan

Link:

https://tria.ge/reports/201109-be99v6pt9n/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

Loads dropped DLL

Executes dropped EXE

Formbook Payload

Formbook

Malware Config

C2 Extraction:

http://www.hearxy.com/s5l/

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

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