MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff47ef125994c6d17fac2dbd14e98b1ce62b63233bf2ae5167a59a1e6ce848d1. 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: 15

Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash:	ff47ef125994c6d17fac2dbd14e98b1ce62b63233bf2ae5167a59a1e6ce848d1
SHA3-384 hash:	575c6e9ed06b598b617c3166bba285843b21aa1afe14a810d5c3c61578c6360dca39b80a901ce2a2a9b2797cb76e4082
SHA1 hash:	2c3c85082f6e68197921bb7a19f833c12bf138ce
MD5 hash:	093dfc9b6326ae8f1493c1f3d95690b7
humanhash:	november-cold-robin-hawaii
File name:	vbc.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	259'655 bytes
First seen:	2022-05-23 10:23:20 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	55f3dfd13c0557d3e32bcbc604441dd3 (124 x Formbook, 18 x Loki, 13 x AgentTesla)
ssdeep	6144:B0YHowhKgWsoThKMhon6BQhDKIRCxRFXHT83yMdnRZqK:XlKgMThKManKQsxnzbQfh
TLSH	T1D84412A276D59667DDC31C3112B7DB29DBF6F3002A60080B5BAC4FBBA6751FA844D1C2
TrID	92.9% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133) 3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 1.1% (.EXE) Win64 Executable (generic) (10523/12/4) 0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):
dhash icon	b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter	pr0xylife
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

264

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

formbook

ID:

File name:

vbc.exe

Verdict:

Malicious activity

Analysis date:

2022-05-23 10:31:20 UTC

Tags:

installer formbook trojan stealer

Link:

https://app.any.run/tasks/0a0bd762-b6f3-408f-be5d-ac52bcdd5cfc

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/273594/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file in the %temp% directory

Creating a window

Creating a process from a recently created file

Сreating synchronization primitives

Launching a process

Searching for synchronization primitives

Launching cmd.exe command interpreter

Sending a custom TCP request

DNS request

Sending an HTTP GET request

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

control.exe overlay packed shell32.dll

Link:

https://www.filescan.io/uploads/628b60e06eb3ff3263236ff6/reports/ff9609d3-c148-4e0a-847f-bda561598fe5/overview

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/4dbe2066-6813-4fb9-bd13-044bf7f53204

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/999672

Signature

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Found malware configuration

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Modifies the context of a thread in another process (thread injection)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Tries to detect virtualization through RDTSC time measurements

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Detection:

formbook

Link:

https://mwdb.cert.pl/sample/ff47ef125994c6d17fac2dbd14e98b1ce62b63233bf2ae5167a59a1e6ce848d1/

Threat name:

Win32.Trojan.FormBook

Status:

Malicious

First seen:

2022-05-23 10:24:08 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

20 of 26 (76.92%)

Threat level:

5/5

Verdict:

malicious

Label(s):

formbook

Result

Malware family:

xloader

Score:

10/10

Tags:

family:formbook family:xloader campaign:ud5f loader persistence rat spyware stealer suricata trojan

Link:

https://tria.ge/reports/220523-mfczkscha9/

Behaviour

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

System policy modification

Enumerates physical storage devices

Program crash

Drops file in Program Files directory

Suspicious use of SetThreadContext

Adds Run key to start application

Loads dropped DLL

Reads user/profile data of web browsers

Uses the VBS compiler for execution

Adds policy Run key to start application

Executes dropped EXE

Xloader Payload

Formbook

Xloader

suricata: ET MALWARE FormBook CnC Checkin (GET)

suricata: ET MALWARE FormBook CnC Checkin (POST) M2

Unpacked files

SH256 hash:

586b5be2f787837cd58ee0135d2bce6b5075b166cc082b0026b27e7a893bd8a0

MD5 hash:

aac7008fba76b0531a474566bc6d3b2c

SHA1 hash:

590b090a5767c096ac54aa65181b6073464ebb43

Link:

https://www.unpac.me/results/9e721c74-c32c-4da8-bf04-ac9fab0c9f83/

SH256 hash:

ff47ef125994c6d17fac2dbd14e98b1ce62b63233bf2ae5167a59a1e6ce848d1

MD5 hash:

093dfc9b6326ae8f1493c1f3d95690b7

SHA1 hash:

2c3c85082f6e68197921bb7a19f833c12bf138ce

Link:

https://www.unpac.me/results/9e721c74-c32c-4da8-bf04-ac9fab0c9f83/

Malware family:

XLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/ff47ef125994/report/overview.html

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/ff47ef125994c6d17fac2dbd14e98b1ce62b63233bf2ae5167a59a1e6ce848d1

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:	malware_Formbook_strings Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Formbook in memory
Reference:	internal research