MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64b047c1e215c0ff15744ae2ac183bdbcd821e42a2408c7e53a6dddf8982dd66. 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: 12

Intelligence 12 IOCs YARA 24 File information Comments

SHA256 hash:	64b047c1e215c0ff15744ae2ac183bdbcd821e42a2408c7e53a6dddf8982dd66
SHA3-384 hash:	e91db4467a5e6bc6027eed853aa251c75d7a15c79ec87860c1821f0c99297b123b9d7e029493567459ca24aff7bbfbdb
SHA1 hash:	b4260e44769309a5a76384322446610e741abacf
MD5 hash:	1c4543cecedc8623a53e8cd3d7818d0f
humanhash:	nevada-nitrogen-alaska-five
File name:	DHL Waybill No 878905243.JS
Download:	download sample
Signature	Formbook Create hunting rule
File size:	3'201'148 bytes
First seen:	2026-10-29 11:42:49 UTC
Last seen:	2026-10-29 20:14:27 UTC
File type:	js
MIME type:	application/javascript
ssdeep	98304:itVlv2DTl65CsrusWZqkVIksvui0uF6YkquVR6cBxaXKaZMNlBffkFRtDTC9v0tN:AeDYQsLkC73RduJyX6NlBffu/Dcv0aA
TLSH	T184E5A3711384E132BB21E78D96379931968ABF5325C6CF31306DF628762CD17A35CAE2
Magika	javascript
Reporter	abuse_ch
Tags:	DHL FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

184

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Other.Malware-gen.33568988.UNOFFICIAL

Verdict:

Clean

Score:

89.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ae33159b121dd519dce9c83

Tags:

n/a

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug dropper evasive masquerade obfuscated packed repaired

Link:

https://www.filescan.io/uploads/6ae33156bda6e0f448c07e67/reports/56feb096-81bf-4c75-888c-75e3bd1cb650/overview

Verdict:

Malicious

Labled as:

JS/TrojanDropper.ModiLoader

Link:

https://www.hybrid-analysis.com/sample/64b047c1e215c0ff15744ae2ac183bdbcd821e42a2408c7e53a6dddf8982dd66

Verdict:

Malicious

File Type:

First seen:

2026-10-29T07:52:00Z UTC

Last seen:

2026-10-31T07:22:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/64b047c1e215c0ff15744ae2ac183bdbcd821e42a2408c7e53a6dddf8982dd66/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1994604

Signature

Antivirus detection for URL or domain

Benign windows process drops PE files

Creates autostart registry keys with suspicious values (likely registry only malware)

Drops PE files to the document folder of the user

Found API chain indicative of debugger detection

Found direct / indirect Syscall (likely to bypass EDR)

JavaScript source code contains functionality to generate code involving a shell, file or stream

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)

Sigma detected: WScript or CScript Dropper

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)

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

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

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

98%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/64b047c1e215c0ff15744ae2ac183bdbcd821e42a2408c7e53a6dddf8982dd66

Verdict:

Malware

YARA:

1 match(es)

Tags:

Batch Command DeObfuscated Javascript JS Emulation Trace PowerShell PowerShell Call Scripting.FileSystemObject T1027 T1059.001 T1059.007 WScript.Shell

Link:

https://app.malva.re/file/1c4543cecedc8623a53e8cd3d7818d0f

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/64b047c1e215c0ff15744ae2ac183bdbcd821e42a2408c7e53a6dddf8982dd66/

Threat name:

Win32.Trojan.Generic

Status:

Suspicious

First seen:

2026-10-29 11:43:25 UTC

File Type:

Text (JavaScript)

AV detection:

9 of 24 (37.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=msyepqpccxap6flujlrkygb33pgyehscujaiy7stu3o57cmc3vta._file

Verdict:

malicious

Label(s):

Formbook

Link:

https://reports.threatray.com/c13d48e0-8b83-4406-9d9a-87d97b6b4b9a

Result

Malware family:

formbook

Score:

10/10

Tags:

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

Link:

https://tria.ge/reports/261029-nvn6tsyz5r/

Behaviour

Modifies Internet Explorer settings

Modifies registry class

NTFS ADS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

Executes a command shell one-liner

System Location Discovery: System Language Discovery

Executes a VBScript file via the Windows Script Host.

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Adds Run key to start application

Checks computer location settings

Executes dropped EXE

Family: Formbook

Formbook payload

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/64b047c1e215c0ff15744ae2ac183bdbcd821e42a2408c7e53a6dddf8982dd66

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:	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:	MULTI_Malware_AgentTesla_ForgeAuto_ed343f78_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects AgentTesla (inconnu, etat extrait)

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:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

Rule name:	SUSP_VBS_Randomized_ActiveX_Downloader Create hunting rule
Author:	Marjoriefort
Description:	Dropper VBS obfusque : ActiveXObject a identifiant randomise (20 MAJ), SaveToFile, .Run
Reference:	Veille fraicheur 2026-09-14 / grappe VBS randomisee

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.

No further information available

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