MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e617a1c393996f9a323738a08cfe2848c8608d078d08054ee58caa9d45ff4685. 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 1 File information Comments

SHA256 hash:	e617a1c393996f9a323738a08cfe2848c8608d078d08054ee58caa9d45ff4685
SHA3-384 hash:	34e0702cc927a11cd60ec4682859d8a62e819b5e8c55ec95101ba831f15119850d5bcb5882b7e80b903948ca8f7ce193
SHA1 hash:	62e44695fec07959d22e38f774d3a04f2bf7f3cf
MD5 hash:	b3620c184fe0e8d8b4fbd6a9adf6205e
humanhash:	juliet-mobile-vermont-coffee
File name:	STATEMENT OF ACCOUNTS AS AT 31 AUG 2020.xlsx
Download:	download sample
Signature	Formbook Create hunting rule
File size:	701'440 bytes
First seen:	2020-09-08 09:55:33 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/encrypted
ssdeep	12288:SsHVGw5v+fWyZqJY/lDUa9nyMRTNFmoOy+UALXJlP289eKFgSwHLc2+:HVAWyZqJYdDUa9nyuTNFey+lfP289eKH
TLSH	78E423043DF11F03D36282BF8E936F5A922EFEA583EAA506B9D57C4510B43792873794
Reporter	abuse_ch
Tags:	FormBook xlsx

abuse_ch

Malspam distributing Formbook:

HELO: kahteck.com
Sending IP: 103.89.88.18
From: "Jenny Zhou" <account1@kahteck.com>
Subject: Fwd: STATEMENT OF ACCOUNT AS AT 31 AUG 2020
Attachment: STATEMENT OF ACCOUNTS AS AT 31 AUG 2020.xlsx

FormBook payload URL:
http://103.149.12.183/uba.exe

FormBook C2:
http://www.pexmot.info/bnc/

Intelligence

File Origin

# of uploads :

# of downloads :

163

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

PUA.Doc.Packed.EncryptedDoc-6563700-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

Creating a file in the %AppData% directory

Launching cmd.exe command interpreter

Deleting a system file

Launching a file downloaded from the Internet

Sending an HTTP GET request to an infection source by exploiting the app vulnerability

Creating a process from a recently created file

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/e617a1c393996f9a323738a08cfe2848c8608d078d08054ee58caa9d45ff4685/

Threat name:

Document-Word.Trojan.Wacatac

Status:

Malicious

First seen:

2020-09-08 05:36:32 UTC

AV detection:

15 of 45 (33.33%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=4yl2dq4ttfxzumrxhcqiz7rijdegbdihrueaktxfrsvj2rp7i2cq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

rat trojan spyware stealer family:formbook

Link:

https://tria.ge/reports/200908-bsf1arx2an/

Behaviour

Gathers network information

Launches Equation Editor

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Loads dropped DLL

Uses the VBS compiler for execution

Blacklisted process makes network request

Executes dropped EXE

Formbook Payload

Formbook

Malware Config

C2 Extraction:

http://www.pexmot.info/bnc/

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

Threat name:

Exploit

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/e617a1c393996f9a323738a08cfe2848c8608d078d08054ee58caa9d45ff4685

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.