MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9bc8bdab560fbdedf026615364e24fe92f8b0d7590fbfab499ef24f923221cd7. 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: 6

Intelligence 6 IOCs YARA 21 File information Comments

SHA256 hash:	9bc8bdab560fbdedf026615364e24fe92f8b0d7590fbfab499ef24f923221cd7
SHA3-384 hash:	20bd54c972dc0edff7d6037f7249684fecde32bb7a061b794c220b19bc821abaa32780b6633f109067b2aa8956008e14
SHA1 hash:	315f7ad4117a7ddcdaddbc6fb6ce9b0f23525ee9
MD5 hash:	7d26da74a10346324b02a6160ee4d008
humanhash:	four-shade-wolfram-idaho
File name:	Rechnung.rar
Download:	download sample
Signature	Formbook Create hunting rule
File size:	747'258 bytes
First seen:	2026-10-14 15:42:14 UTC
Last seen:	Never
File type:	rar
MIME type:	application/vnd.rar
ssdeep	12288:7i1Zc2RUeygjacVuAIgI7w3B9p1OUEKbr6VpEOpVk/v48Tv1OhT0M0kAZ:7i1ZfWepVHfnn3O6YKr1OhT3C
TLSH	T180F4231A86089D66DBE842B66CFA2E5841013F3AFFEC0F4DDF6449B0FAB305965007B5
TrID	61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika	rar
Reporter	TomU
Tags:	FormBook rar

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

File Archive Information

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

File name:	Heintjes.exe
File size:	841'832 bytes
SHA256 hash:	cf3657cfdbdd80eeb98a4dae53615227703e6ba3dd61f60f9a88b35e032df847
MD5 hash:	73672a669a8176a3cdf9c8177865b6aa
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/aa464969-9c92-40eb-b4b2-6f4700a6cd0c/

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

installer installer microsoft_visual_cc nsis signed

Link:

https://www.filescan.io/uploads/6acfa2ecd3bae837b818d8e5/reports/75ebb1f3-9743-4e10-9137-f2e39ee98102/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/9bc8bdab560fbdedf026615364e24fe92f8b0d7590fbfab499ef24f923221cd7

Verdict:

inconclusive

YARA:

1 match(es)

Tags:

Executable PE (Portable Executable) PE File Layout Rar Archive

Link:

https://app.malva.re/file/7d26da74a10346324b02a6160ee4d008

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/9bc8bdab560fbdedf026615364e24fe92f8b0d7590fbfab499ef24f923221cd7/

Threat name:

Win32.Trojan.Generic

Status:

Suspicious

First seen:

2026-10-14 14:54:36 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

9 of 36 (25.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=tpel3k2wb66634bgmfjwjysp5exywdlvsd57vnez54spsizcdtlq._file

Result

Malware family:

guloader

Score:

10/10

Tags:

family:guloader defense_evasion discovery downloader privilege_escalation

Link:

https://tria.ge/reports/261014-tqnmdsfw5z/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Reads the TCP/IP host and domain name from the registry

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Drops file in Windows directory

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Loads dropped DLL

Family: Guloader,Cloudeye

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/9bc8bdab560fbdedf026615364e24fe92f8b0d7590fbfab499ef24f923221cd7

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:	DebuggerCheck__API 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:	Detect_NSIS_Nullsoft_Installer Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects NSIS installers by .ndata section + NSIS header string

Rule name:	FormhookB Create hunting rule
Author:	kevoreilly
Description:	Formbook Anti-hook Bypass

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

Rule name:	NSIS Create hunting rule
Author:	kevoreilly
Description:	NSIS Integrity Check function

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

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:	telebot_framework Create hunting rule
Author:	vietdx.mb

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	Win_Clipboard_Clipper_Thengavar Create hunting rule
Author:	Thengavar
Description:	Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks

Rule name:	Win_FakeInstaller_PythonShellcodeLoader_Crepectl_2026 Create hunting rule
Author:	SixHands
Description:	Detects the analyzed fake installer sample using .key config, XOR key, and Python/fiber shellcode loader traits

Rule name:	WIN_Malware_Unknown_ForgeAuto_1762e598_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat extrait)

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_74566f98 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_79234c04 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_7e8e91c4 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_92a28498 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

File information

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

Malspam

Formbook

rar 9bc8bdab560fbdedf026615364e24fe92f8b0d7590fbfab499ef24f923221cd7

(this sample)

Delivery method

Distributed via e-mail attachment

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