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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0cf105e0d672c3a47cce1e65b3cf6e798775c9d22546b4bdbfcc0249c087b2e2. 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: 16


Intelligence 16 IOCs YARA 35 File information Comments

SHA256 hash: 0cf105e0d672c3a47cce1e65b3cf6e798775c9d22546b4bdbfcc0249c087b2e2
SHA3-384 hash: 1d96bdcd9bcf8033977415c90db262fbba43f5fdc0c829617a448d4484e486139c11578e7f944a1e2a5f434dae27c597
SHA1 hash: 618b10ad2ffa90b159bcc3cd7f44e176e0df5fb6
MD5 hash: a2b6ca9257f3ed08213882423a248b56
humanhash: tennessee-ohio-march-dakota
File name:0cf105e0d672c3a47cce1e65b3cf6e798775c9d22546b4bdbfcc0249c087b2e2
Download: download sample
Signature Formbook
File size:1'138'688 bytes
First seen:2026-10-19 07:37:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'297 x AgentTesla, 20'715 x Formbook, 12'401 x SnakeKeylogger)
ssdeep 24576:n8UNuA6gKKJzMf9pmnPkkXxOYbi44Hc+rhGmIWLMyazidAQ:n8UggKczMffUk7TlHZVGVYA
TLSH T1183502543399C902C5A24BF10D71D7F51BB88E88A911D303AEFAFEDBB6797456804393
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.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 :
81
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-10-19 09:18:59 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.1%
Tags:
shell virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
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)
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
dropper formbook packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-31T15:57:00Z UTC
Last seen:
2026-10-21T03:50:00Z UTC
Hits:
~1000
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.43 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2026-09-01 10:30:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
28 of 36 (77.78%)
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
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
0cf105e0d672c3a47cce1e65b3cf6e798775c9d22546b4bdbfcc0249c087b2e2
MD5 hash:
a2b6ca9257f3ed08213882423a248b56
SHA1 hash:
618b10ad2ffa90b159bcc3cd7f44e176e0df5fb6
SH256 hash:
586fee184d33d36c99ed3fa2d7a8253cca275f0fd83221e1b8d406d916637ae7
MD5 hash:
3cca2c360d4a8223f7fa6c8307404145
SHA1 hash:
9a543d4434b6f5787009ffadaed9d492118f99e9
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
0e7f0b1e38b8c6d413f5eced6e004e4079160cccd3d05ce61e15ac6f6bb8fa59
MD5 hash:
62ad5faac61ab355e982d56f458f65d8
SHA1 hash:
abdc2b776f2f14a95108a5db5712fa2d7139dfe0
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SH256 hash:
2bf01c5b04d52f23c1086ce354e6998e4797c9dd5a6ebf11bee83b608f923c39
MD5 hash:
3128a457366233c6f27cff8536281b25
SHA1 hash:
401df853b40e86150c9d17d0edb4002cd34573d6
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_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:DotNet_RGB_Embedded_AssemblyLoader_Hunt
Author:ShadowOpCode
Description:Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:HUNT_NET_Loader_ImagePixel_To_AssemblyLoad
Author:Anish Bogati
Description:Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
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: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:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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_Derialock_ForgeAuto_3127f957_Extrait
Author:Marjoriefort
Description:Detects Derialock (pe, etat extrait)
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)
Rule name:WIN_Sample_Unique_69354b41
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information


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

Comments