MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 102045f1813b3f00940f18e585631a0bf4aa39bb45bb90567a10f22520f23870. 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:	102045f1813b3f00940f18e585631a0bf4aa39bb45bb90567a10f22520f23870
SHA3-384 hash:	9a0ea6e1393182bc0a86f8ecc67531ce0973248cb4e39d8372ad230da5c3229c3ce07be50ea091ca5fe036694baff6e2
SHA1 hash:	23d1e41891a8194e7415f8efe89cd8e6c22b797c
MD5 hash:	3e5e418ceb51d8a37fadfbf0b7c67cca
humanhash:	alabama-monkey-two-coffee
File name:	PO-ST0308.xlsm
Download:	download sample
Signature	Formbook Create hunting rule
File size:	123'437 bytes
First seen:	2020-08-03 07:31:34 UTC
Last seen:	2020-08-03 08:39:55 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	3072:PuYkRZ/Xl+MwR5HwX0aP6QngDPJhV92hJrL1WwHAXC7UL/y3c4p1Q:GYAP0J1K1ngDPnV92hriCT9Q
TLSH	1EC3126239178F82E4D36BB497CC5E06704CD9F13F0E2B0A90E95E9C79E4389522E5D7
Reporter	abuse_ch
Tags:	FormBook xlsm

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(s):

SecuriteInfo.com.Trojan.GenericKD.43585249.10185.11185.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

DNS request

Creating a file

Sending an HTTP GET request

Creating a process from a recently created file

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl

Score:

64 / 100

Link:

https://www.joesandbox.com/analysis/407619

Signature

Creates HTML files with .exe extension (expired dropper behavior)

Document exploit detected (creates forbidden files)

Machine Learning detection for sample

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/102045f1813b3f00940f18e585631a0bf4aa39bb45bb90567a10f22520f23870/

Threat name:

Script-Macro.Downloader.Obfuser

Status:

Malicious

First seen:

2020-08-03 07:33:05 UTC

AV detection:

17 of 29 (58.62%)

Threat level:

3/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=caqel4mbhm7qbfapddsykyy2bp2kuon3iw5zavt2cdzckihshbya._file

Result

Malware family:

n/a

Score:

8/10

Tags:

n/a

Link:

https://tria.ge/reports/200803-qzdnct86rj/

Behaviour

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Office loads VBA resources, possible macro or embedded object present

Executes dropped EXE

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

Threat name:

Dropper

Score:

0.80

Link:

https://yomi.yoroi.company/submissions/102045f1813b3f00940f18e585631a0bf4aa39bb45bb90567a10f22520f23870

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.