MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4346a55f23804e9e944c462784c53f264ce150dac2681e692d1f5331fc71421f. 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 9 File information Comments

SHA256 hash: 4346a55f23804e9e944c462784c53f264ce150dac2681e692d1f5331fc71421f
SHA3-384 hash: be15de38fad63d72aea5b76539f9418863904957f5383559217bf7f8d69400b0d22d51b4199c570356b3bd02a6b529d1
SHA1 hash: 44d1c1dac7ceb175fdee17b86ddbe652622ca030
MD5 hash: 9bd72fe2ab05da916f59375706e2fa98
humanhash: mirror-triple-wyoming-magnesium
File name:4346a55f23804e9e944c462784c53f264ce150dac2681e692d1f5331fc71421f
Download: download sample
Signature Formbook
File size:736'256 bytes
First seen:2025-09-05 12:22:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:7rwg3legPATOJR/QzMe/spcLImTBHVpGiiq4OP0eijad+TF8:7Z3myz/q3/sKHOiigP0tjaZ
Threatray 769 similar samples on MalwareBazaar
TLSH T1F9F41205156ED902E0E62BB11E72E6B117F0AE8DF126EB275FD99CCFB636F400908356
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
59
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4346a55f23804e9e944c462784c53f264ce150dac2681e692d1f5331fc71421f
Verdict:
No threats detected
Analysis date:
2025-09-05 13:27:44 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
infosteal micro spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-12T03:40:00Z UTC
Last seen:
2025-08-12T03:40:00Z UTC
Hits:
~100
Gathering data
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Status:
Malicious
First seen:
2025-08-12 06:38:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 24 (83.33%)
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:
4346a55f23804e9e944c462784c53f264ce150dac2681e692d1f5331fc71421f
MD5 hash:
9bd72fe2ab05da916f59375706e2fa98
SHA1 hash:
44d1c1dac7ceb175fdee17b86ddbe652622ca030
SH256 hash:
888e9f8878f58cc75f73aa816326c4bee9ddb63183fbbd3349303f992728a4d8
MD5 hash:
f70fa69f5e3d91c0eb993bbdbcd638d3
SHA1 hash:
240a3b9b57fc46e171a2e79919e2e4a253ec9b26
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
9485dba36ff93583b154f4ab11730ed448f7ee199d2203e0166349e8a3640ef7
MD5 hash:
ccfd69f655d4d803882b790df1d2be62
SHA1 hash:
813de8f1af8fedc5fec1f608824b2d7fec05f830
SH256 hash:
7fdb90f50f25a2ee61893a56a53cadba49274b71143bff854d40a104f53ea6e9
MD5 hash:
6a9e392389d0ad136892b19d8355c7ac
SHA1 hash:
3b9a9bee21adb3f0dc2caa82cf048589b0848639
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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
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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