MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 56538809a89b3e6519f36a850e3126fcd1a55e908728ef012f9d767fca2948c5. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments

SHA256 hash: 56538809a89b3e6519f36a850e3126fcd1a55e908728ef012f9d767fca2948c5
SHA3-384 hash: 831a9bff2aa6ae67d852482713e13d16d057d45ff7463ec7754a1c853689d546da557d3465eb475cc68c541adc9cd539
SHA1 hash: 66e9d3ea60dc15ae0111d81558850dd9d71ffacc
MD5 hash: b1fc5a213e7b441208a3e74242e60f67
humanhash: vermont-timing-xray-stream
File name:56538809a89b3e6519f36a850e3126fcd1a55e908728ef012f9d767fca2948c5
Download: download sample
Signature Formbook
File size:884'736 bytes
First seen:2025-09-05 12:37:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:fBSFuHM1r3kKzl/NGnTSiY3HyYmvQVAcG03Ckr:fMFlj/2+iIXm4BJ3
TLSH T14B1501D72504C616DD647FB84CA2E3F8C226DE9CA410C30769F9FEEB7922E51385E246
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
56
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
56538809a89b3e6519f36a850e3126fcd1a55e908728ef012f9d767fca2948c5
Verdict:
Malicious activity
Analysis date:
2025-09-05 15:35:27 UTC
Tags:
netreactor formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
shell virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Unauthorized injection to a recently created process
Creating a process with a hidden window
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-14T00:53:00Z UTC
Last seen:
2025-08-14T00:53:00Z UTC
Hits:
~1000
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.30 Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-08-14 04:41:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
56538809a89b3e6519f36a850e3126fcd1a55e908728ef012f9d767fca2948c5
MD5 hash:
b1fc5a213e7b441208a3e74242e60f67
SHA1 hash:
66e9d3ea60dc15ae0111d81558850dd9d71ffacc
SH256 hash:
ae9636466d21decb91b7506adffce283e2652a10b4a54a665f6fe95362401f8e
MD5 hash:
99cbfdf6df98b1f5871eab4e7ad72ce6
SHA1 hash:
1810136683336172ac6c7c253eacf180e3384689
SH256 hash:
74a0e188e432790a87f90e712898baf02d9f7225aa029b9268908f32c99078ef
MD5 hash:
d29b624e6c72bfd8c8719c4d5039ddca
SHA1 hash:
2127437f696120349a4665995cedaa126538ba34
SH256 hash:
c175295335d794c4188ea8bb9f7ea9ed7c3f986e82507878897485e6f15c3d5d
MD5 hash:
b9d722aad7a3a7f7ce095a1f6ec8f7d6
SHA1 hash:
78a43323840763ede45a9692a1b5d84b6157681f
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
7a77c47c7edaeaabd0a4b6835c2d09cfac9a7db4752030c2f085c01a3ab44c30
MD5 hash:
ba79c403cd11d8639495014ccace69f2
SHA1 hash:
23f28e0ae7866aee85eb3c89418bd6ba6a9be0f4
Detections:
win_formbook_g0
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:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

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