MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b207bfdbcc74fe150c2d8ffd13ac6e3394d2d24aa5b743e4d312f033af10e35d. 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 23 File information Comments

SHA256 hash:	b207bfdbcc74fe150c2d8ffd13ac6e3394d2d24aa5b743e4d312f033af10e35d
SHA3-384 hash:	dca43f4ad87fdf49cbdd27c522468e51903af150dc430a02a5b4d7282f1832e733e640c26eeb0596b6eb26cec9132fbe
SHA1 hash:	741a8baa1b01e0ab594af9b91f07983bc2a05717
MD5 hash:	1f498651cfe4f4a9b29cf7febeae9c17
humanhash:	mango-pluto-johnny-alaska
File name:	Payment Swift Receipt Voucher.vbs
Download:	download sample
Signature	Formbook Create hunting rule
File size:	414'533 bytes
First seen:	2026-11-09 10:23:32 UTC
Last seen:	Never
File type:	vbs
MIME type:	text/plain
ssdeep	12288:U8mom+UIVV7v4F9I1Jy5o5SseieABN2Pi:UFWD7vV1JzDpA6
TLSH	T14A9479E0A976754EEB6FB0FC50DEB5960661FA8368051FE4812724BD3D4321F88E523D
Magika	vba
Reporter	abuse_ch
Tags:	FormBook vbs

Intelligence

File Origin

# of uploads :

# of downloads :

105

Origin country :

Vendor Threat Intelligence

No detections

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/98792/

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6af1cc86ac89c90fc65ac39f

Tags:

infosteal rapid

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

Creating a process with a hidden window

Deleting a recently created file

Creating synchronization primitives

Sending a custom TCP request

Creating a file in the %temp% directory

Creating a process from a recently created file

Verdict:

Malicious

Labled as:

GT:VB.Heur2.ObfDldr.34

Link:

https://www.hybrid-analysis.com/sample/b207bfdbcc74fe150c2d8ffd13ac6e3394d2d24aa5b743e4d312f033af10e35d

Verdict:

Malicious

File Type:

vbs

Link:

https://opentip.kaspersky.com/b207bfdbcc74fe150c2d8ffd13ac6e3394d2d24aa5b743e4d312f033af10e35d/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/2001499

Signature

Antivirus detection for URL or domain

Bypasses PowerShell execution policy

Found direct / indirect Syscall (likely to bypass EDR)

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 submitted file

Queues an APC in another process (thread injection)

Sample has a suspicious name (potential lure to open the executable)

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: Script Interpreter Execution From Suspicious Folder

Sigma detected: Suspicious PowerShell Parameter Substring

Sigma detected: Suspicious Script Execution From Temp Folder

Sigma detected: WScript or CScript Dropper

Suricata IDS alerts for network traffic

Suspicious execution chain found

Suspicious powershell command line found

Switches to a custom stack to bypass stack traces

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Unusual module load detection (module proxying)

VBScript performs obfuscated calls to suspicious functions

Windows Scripting host queries suspicious COM object (likely to drop second stage)

WScript reads language and country specific registry keys (likely country aware script)

Wscript starts Powershell (via cmd or directly)

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Verdict:

Malware

YARA:

3 match(es)

Tags:

Base64 Block COM Behavior Trace Contains Base64 Block DeObfuscated Obfuscated PowerShell SOS: 0.53 T1027 T1059.001 T1059.005 VBScript

Link:

https://app.malva.re/file/1f498651cfe4f4a9b29cf7febeae9c17

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b207bfdbcc74fe150c2d8ffd13ac6e3394d2d24aa5b743e4d312f033af10e35d/

Threat name:

Text.Trojan.AdvML

Status:

Malicious

First seen:

2026-11-09 10:16:57 UTC

File Type:

Text (VBS)

AV detection:

6 of 36 (16.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wid37w6mot7bkdbnr76rhldogoknfuskuw3uhzgtclydhlyq4noq._file

Verdict:

malicious

Label(s):

Formbook

Link:

https://reports.threatray.com/9c2ba14e-1c08-4fc8-b6bb-2053ffc570ae

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook adware collection defense_evasion discovery execution privilege_escalation rat spyware stealer trojan

Link:

https://tria.ge/reports/261109-mfkdnawy3m/

Behaviour

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Executes a VBScript file via the Windows Script Host.

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Executes dropped EXE

Family: Formbook

Formbook payload

Malware Family:

obfdldr

Malicious:

True

Tags:

exec-dll file-write obfuscated vba powershell exec

Link:

https://intel.virussign.com/intelligence/file/b207bfdbcc74fe150c2d8ffd13ac6e3394d2d24aa5b743e4d312f033af10e35d

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/b207bfdbcc74fe150c2d8ffd13ac6e3394d2d24aa5b743e4d312f033af10e35d

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:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	data_manipulation Create hunting rule
Author:	Serhii Kocherhan
Description:	Detects data manipulation routines including XOR encoding, Base64 references, and RC4 PRGA encryption

Rule name:	DebuggerCheck__GlobalFlags Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Active Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

Rule name:	exploit_any_poppopret Create hunting rule
Author:	Jeff White [karttoon@gmail.com] @noottrak
Description:	Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	TH_Win_ETW_Bypass_2025_CYFARE Create hunting rule
Author:	CYFARE
Description:	Windows ETW Bypass Detection Rule - 2025
Reference:	https://cyfare.net/

Rule name:	WIN_Malware_SalatStealer_ForgeAuto_542e717b Create hunting rule
Author:	Marjoriefort
Description:	Detects SalatStealer (pe, etat binaire)

Rule name:	WIN_Malware_Sliver_ForgeAuto_2ddb463c Create hunting rule
Author:	Marjoriefort
Description:	Detects Sliver (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_2ffc3572 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_5001c94c Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_ce8c5b46 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_ValleyRAT_ForgeAuto_401c5e16 Create hunting rule
Author:	Marjoriefort
Description:	Detects ValleyRAT (pe, etat binaire)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape

https://www.capesandbox.com/analysis/98792/

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