MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8802b11e8dd872f8051fb076a40106d856f80338d33d3abbca993a9f8204dc1. 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:	f8802b11e8dd872f8051fb076a40106d856f80338d33d3abbca993a9f8204dc1
SHA3-384 hash:	fb9953b56ba46dc45d90f214ee4a0807ecd87fbb1c426ffbe398ce7ba01a16053e1d701aa583ed1ded825ab38b998ba8
SHA1 hash:	b5f68a238d2355b22aa75f877c5df1bb282437c3
MD5 hash:	4c2b41ea9dd11267dda338102d9d0b43
humanhash:	three-lion-november-lithium
File name:	0000491219.xlsx
Download:	download sample
Signature	Formbook Create hunting rule
File size:	672'768 bytes
First seen:	2020-09-08 06:11:11 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/encrypted
ssdeep	12288:k2KPhMSNwqg54AndjzxvzEwdKVNaDUka5nM7UUzJebejFrC3BqOE2CeCyCQPqS6J:k9PhMi054GXvZd2NWaGzsbejFZyI9Ore
TLSH	D2E4232376C47A6AD5D313F810AB96432AEDEF292B1CC897641C36D3703AB7540E693D
Reporter	abuse_ch
Tags:	CVE-2017-11882 FormBook xlsx

abuse_ch

Malspam distributing Formbook:

HELO: noorleather.com
Sending IP: 103.149.12.183
From: "Janice (李会娟 )" <import@noorleather.com>
Subject: 答复: analyze QU 2020083109
Attachment: 0000491219.xlsx

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

FormBook C2:
http://www.jramfox.info/5gb/

Intelligence

File Origin

# of uploads :

# of downloads :

161

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/f8802b11e8dd872f8051fb076a40106d856f80338d33d3abbca993a9f8204dc1/

Threat name:

Document-Office.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2020-09-08 05:45:41 UTC

AV detection:

14 of 29 (48.28%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=7cacwepi3wds7acr7mdwuqaqnwcw7abtruz5hk54vgj2t6bajxaq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

rat trojan spyware stealer family:formbook

Link:

https://tria.ge/reports/200908-kyd85w5np6/

Behaviour

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.jramfox.info/5gb/

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/f8802b11e8dd872f8051fb076a40106d856f80338d33d3abbca993a9f8204dc1

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.