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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d82c1e7b91d7307138e3c079dfd42c8f9480e11861319adf97a689f1c20eb36f. 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: 11


Intelligence 11 IOCs YARA 29 File information Comments

SHA256 hash: d82c1e7b91d7307138e3c079dfd42c8f9480e11861319adf97a689f1c20eb36f
SHA3-384 hash: 60daee5aa896813c3d0b6e997326a3ea4f2647ac0d12acc14ffccb991337ec3037f350fa2619fb63e704e792fdfec166
SHA1 hash: c5443a99b5cfd076862ff6084b263d88833c8e62
MD5 hash: 8e9791e687ac5030a153bfb26a99a4a3
humanhash: music-skylark-wisconsin-happy
File name:orderXdocumentX4500583468.zip
Download: download sample
Signature Formbook
File size:1'484'459 bytes
First seen:2026-10-14 15:39:00 UTC
Last seen:2026-10-14 15:40:19 UTC
File type: zip
MIME type:application/zip
ssdeep 24576:0P8nTLHZpiRT+io2nQj5BLlytJGImyj3YMEhgm3j8P+StGuhO7M:0knTLH2RKpjXLYtJGI73FEmDwHM
TLSH T1696533A13CEE50960C09F73CE5840798DB7F60FD852DA6DA8DBC4620773036C5FA62A6
Magika zip
Reporter TomU
Tags:FormBook zip

Intelligence


File Origin
# of uploads :
2
# of downloads :
51
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:order document 4500583468.js
File size:2'112'536 bytes
SHA256 hash: 537edff805f01933ac0a59f69f5b1acc8ce07c8e1af82da7871e7b7c618e3aef
MD5 hash: 84266bb3673ffe13bbaf884c9fa6d4a4
MIME type:text/plain
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
autorun virus shell blic
Result
Verdict:
Malicious
File Type:
JS File - Malicious
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 downloader encrypted formbook masquerade obfuscated repaired
Verdict:
Malicious
File Type:
zip
First seen:
2026-10-07T07:27:00Z UTC
Last seen:
2026-10-16T00:25:00Z UTC
Hits:
~100
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
Zip Archive
Threat name:
Win32.Trojan.Suschil
Status:
Malicious
First seen:
2026-10-07 15:13:44 UTC
File Type:
Binary (Archive)
Extracted files:
1
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook adware collection defense_evasion discovery execution persistence privilege_escalation rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Modifies registry class
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
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
ConfuserEx .NET packer
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Creates a file in the Startup directory
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:SUSP_JS_HexObfuscated_ActiveX_Launcher
Author:Marjoriefort
Description:JS obfusque (identifiants _0x) instanciant ActiveX sous WScript - dropper JScript frais
Reference:Veille fraicheur 2026-09-14 / cluster JS _0x
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Author:vietdx.mb
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:WIN_Malware_SalatStealer_ForgeAuto_542e717b
Author:Marjoriefort
Description:Detects SalatStealer (pe, etat binaire)
Rule name:WIN_Malware_Sliver_ForgeAuto_2ddb463c
Author:Marjoriefort
Description:Detects Sliver (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_2ffc3572
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_5001c94c
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_ce8c5b46
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_ValleyRAT_ForgeAuto_401c5e16
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.

Malspam

Formbook

zip d82c1e7b91d7307138e3c079dfd42c8f9480e11861319adf97a689f1c20eb36f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments