MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f3bedd484f8e49e35bd9e77b1ae88b27d5efc747a44dee28277be0556653ecb. 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: 20


Intelligence 20 IOCs YARA 7 File information Comments

SHA256 hash: 3f3bedd484f8e49e35bd9e77b1ae88b27d5efc747a44dee28277be0556653ecb
SHA3-384 hash: 0db3b126f3c508153d52236e2d150d1e6646504b3b17a6dc5d183b8b6885db95b1c0df4fc57dd91d0a529cd9a1ebe82c
SHA1 hash: a41f52813754b61310d226096b95cc2dc72377d4
MD5 hash: 51322337c69fa74379be8bc1facc86f3
humanhash: eight-fillet-oven-mexico
File name:3f3bedd484f8e49e35bd9e77b1ae88b27d5efc747a44dee28277be0556653ecb
Download: download sample
Signature Formbook
File size:785'408 bytes
First seen:2025-09-05 12:56:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:hTFvGz8han2MG0+9IIs7bNkv/k8OGFFRFObSqyMsFZxKv4TXaoGuL8bURHKNqBVc:b/CNg2GFdO9yMsTxF+RuL8bmKNE
Threatray 775 similar samples on MalwareBazaar
TLSH T10BF412A66612F90AC1D517F45C72D3F882B99DC8A101C707EFE97CEB3C17705A8A53A2
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 :
61
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
3f3bedd484f8e49e35bd9e77b1ae88b27d5efc747a44dee28277be0556653ecb.exe
Verdict:
Malicious activity
Analysis date:
2025-09-05 13:44:10 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:
90.2%
Tags:
virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
agenttesla obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-19T01:23:00Z UTC
Last seen:
2025-08-19T01:23:00Z UTC
Hits:
~100
Detections:
Trojan.MSIL.Crypt.sb Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Inject.sb HEUR:Trojan.MSIL.Taskun.gen Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic HEUR:Trojan.MSIL.Injector.gen Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb
Gathering data
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2025-08-19 17:59:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
3f3bedd484f8e49e35bd9e77b1ae88b27d5efc747a44dee28277be0556653ecb
MD5 hash:
51322337c69fa74379be8bc1facc86f3
SHA1 hash:
a41f52813754b61310d226096b95cc2dc72377d4
SH256 hash:
27e5ffda53751e7360f380bd82a3176a7875a555f6af5b130fb2d64ff776c895
MD5 hash:
68845a1d0f6c65bb7ecc09ca76d2f005
SHA1 hash:
0145c4314c2cf41ae583bb32784fe780c1cdaf1d
SH256 hash:
1abaa9941c83ee6a436356d8f2e98acced7773f7692ed33090ef0690c789e540
MD5 hash:
47b8d55010bde2bfd467a55812991059
SHA1 hash:
68ee9a53061f8eb99b708e65e71b36b4c8904cc3
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
fc4b67409ffa1051ecb459d32e0bfdbcaf7c62e498430d0d56c23a3e3c27bff0
MD5 hash:
7211f34e2a294d0171119f9787ca7d18
SHA1 hash:
90f402d0b28a6a218ae75f262bca85ccec6bc400
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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