MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e09784a38ea819d57bc0036509f930d8e04f5d5b6ef0d9611983c157032516a5. 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:	e09784a38ea819d57bc0036509f930d8e04f5d5b6ef0d9611983c157032516a5
SHA3-384 hash:	140ea3ca0d28aecee216fd0b8ddd849417bdd1187e554f6768454a31b08fd2a5fe701a6ed45aee7b1f63af4b50a130d5
SHA1 hash:	63bab8fa60ade8b60f03c6ab1dc12f6025ee84a1
MD5 hash:	6db168673431cb2e1faa9c500a1c2dd1
humanhash:	robert-sierra-mobile-network
File name:	PO_20202602.xlsx
Download:	download sample
Signature	Formbook Create hunting rule
File size:	613'376 bytes
First seen:	2020-08-18 19:50:29 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/encrypted
ssdeep	12288:FydpLyc75DLxfWDGBwlbAZNRBDfSJdTtBrvyHOiv1/bYyi0otHp:eVJ9UDGwMXfDwdTtJvyHOY1D/i0otH
TLSH	22D4236C388C6E56E8F327B74E4E863E6055EF36071DF88360997E586932B3AC10CD56
Reporter	abuse_ch
Tags:	CVE-2017-11882 FormBook xlsx

abuse_ch

Malspam distributing Formbook:

HELO: pluscargoecuador.com
Sending IP: 103.114.106.11
From: karen.curtidor, Dipl. Ing <karen.curtidor@pluscargoecuador.com>
Subject: RE: Urgent Request For Qoutation(RFQ_#20200219)
Attachment: PO_20202602.xlsx

FormBook payload URL:
http://103.114.106.11/uuz.exe

FormBook C2:
http://www.flekcht.com/usc/

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Exploit.Siggen2.22768.15460.28973.UNOFFICIAL

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

Sending an HTTP GET request

Launching a file downloaded from the Internet

Forced shutdown of a system process

Creating a process from a recently created file

Unauthorized injection to a system process

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/e09784a38ea819d57bc0036509f930d8e04f5d5b6ef0d9611983c157032516a5/

Threat name:

Document-Office.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2020-08-18 09:05:45 UTC

AV detection:

13 of 29 (44.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=4clyji4ovam5k66aansqt6jq3dqe6xk3n3ynsyizqpavoazfc2sq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

rat trojan spyware stealer family:formbook

Link:

https://tria.ge/reports/200818-scz7831eya/

Behaviour

Launches Equation Editor

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

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.flekcht.com/usc/

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/e09784a38ea819d57bc0036509f930d8e04f5d5b6ef0d9611983c157032516a5

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.