MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4be616041ed326d07a5d65824ca71501c90efdaee9ebbd2693b236140e967dd4. 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: 9


Intelligence 9 IOCs YARA 16 File information Comments

SHA256 hash: 4be616041ed326d07a5d65824ca71501c90efdaee9ebbd2693b236140e967dd4
SHA3-384 hash: 9fb655e799ce6babb3b128185ddb4f718c9230866b6816afebb13252d08af1ad2c425128fe5353632675ae44123214bb
SHA1 hash: 291063e41eab884c3e026cbff89dfcd240b6230f
MD5 hash: 152f338ab8622ef31427c300d7f1e4e7
humanhash: mars-enemy-august-delta
File name:BonificoSct_20_07_2026_09_07_09.js
Download: download sample
Signature Formbook
File size:6'070'951 bytes
First seen:2026-07-24 12:19:13 UTC
Last seen:2026-07-24 12:46:29 UTC
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:v8KSj4SnxbP4TwI/R6y0G51NXa3G7g4+KVyC3dPTavt3OwLOwJ8KSj4SnxbP4Tw+:a
TLSH T15E562CB2B5EF7A026F15A75D940D3A450F6FE1744EE263DCD09706D4E88B48E28A04EF
Magika javascript
Reporter TomU
Tags:FormBook js

Intelligence


File Origin
# of uploads :
7
# of downloads :
149
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
agenttesla base64 evasive obfuscated powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-07-20T06:01:00Z UTC
Last seen:
2026-07-25T06:08:00Z UTC
Hits:
~1000
Gathering data
Threat name:
Script-JS.Trojan.AgentTesla
Status:
Malicious
First seen:
2026-07-20 12:56:20 UTC
File Type:
Text (JavaScript)
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook adware collection defense_evasion discovery execution rat spyware stealer trojan
Behaviour
Kills process with taskkill
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Base64_Encoded_Powershell_Directives
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/

File information


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

Malspam

Formbook

Java Script (JS) js 4be616041ed326d07a5d65824ca71501c90efdaee9ebbd2693b236140e967dd4

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments