MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a58c0fc52140fe8db183739b7d4c075285221b67e4c8199c054f1c74e82e291. 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: 22


Intelligence 22 IOCs YARA 21 File information Comments

SHA256 hash: 0a58c0fc52140fe8db183739b7d4c075285221b67e4c8199c054f1c74e82e291
SHA3-384 hash: ebd1849792eb18116470ae393dd0bc0a5c0f7cfa12f9e0162fdfefcf53cf3d9ccb349732d30018a15ba9e4d393eba419
SHA1 hash: 30cb3312e3b1bdf2f844fa6f076d9805a5b58129
MD5 hash: ad169d4a3c024d3a2c7db8e88dacb588
humanhash: south-bulldog-sink-butter
File name:vessel particulars detail.exe
Download: download sample
Signature Formbook
File size:680'960 bytes
First seen:2025-12-17 07:25:21 UTC
Last seen:2025-12-17 13:54:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:864LAlmamhFq35TXOvNcsoUp2fcJfOHILIvhu/FsEL879FdCCrqj8Jef:bfmhcJzOVcsUfcJUIc5k8vqgJ
Threatray 2'395 similar samples on MalwareBazaar
TLSH T10DE401D13E346321CDB006749568DEBC42AA1EB87425BDE74EDD3F9773D9210AA08F26
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 threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
146
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
vessel particulars detail.exe
Verdict:
Malicious activity
Analysis date:
2025-12-17 07:26:49 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook krypt packed vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-17T03:00:00Z UTC
Last seen:
2025-12-19T05:01:00Z UTC
Hits:
~10000
Detections:
Trojan-PSW.Win32.Stealer.sb PDM:Trojan.Win32.Generic HEUR:Trojan-Spy.MSIL.Noon.gen Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb Trojan-Spy.Noon.HTTP.ServerRequest
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1834588 Sample: vessel particulars detail.exe Startdate: 17/12/2025 Architecture: WINDOWS Score: 100 34 www.torila.life 2->34 36 www.taxattorneyreno.com 2->36 38 13 other IPs or domains 2->38 46 Suricata IDS alerts for network traffic 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected FormBook 2->50 52 4 other signatures 2->52 11 vessel particulars detail.exe 3 2->11         started        signatures3 process4 file5 32 C:\...\vessel particulars detail.exe.log, ASCII 11->32 dropped 62 Injects a PE file into a foreign processes 11->62 15 vessel particulars detail.exe 11->15         started        signatures6 process7 signatures8 64 Maps a DLL or memory area into another process 15->64 18 UJuOk7vD84J.exe 15->18 injected process9 process10 20 msra.exe 13 18->20         started        signatures11 54 Tries to steal Mail credentials (via file / registry access) 20->54 56 Tries to harvest and steal browser information (history, passwords, etc) 20->56 58 Modifies the context of a thread in another process (thread injection) 20->58 60 4 other signatures 20->60 23 SEQbQQ5wSUzBL.exe 20->23 injected 26 chrome.exe 20->26         started        28 firefox.exe 20->28         started        process12 dnsIp13 40 designbynord.com 81.169.145.92, 49737, 49738, 49739 STRATOSTRATOAGDE Germany 23->40 42 cdqvc.com 178.63.45.142, 49723, 80 HETZNER-ASDE Germany 23->42 44 9 other IPs or domains 23->44 30 WerFault.exe 4 26->30         started        process14
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.31 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2025-12-17 06:15:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
0a58c0fc52140fe8db183739b7d4c075285221b67e4c8199c054f1c74e82e291
MD5 hash:
ad169d4a3c024d3a2c7db8e88dacb588
SHA1 hash:
30cb3312e3b1bdf2f844fa6f076d9805a5b58129
SH256 hash:
6bdccfdbecdc314f45d42233140962b087813c86073968ac9066d148eb8f290a
MD5 hash:
2305fdf35ac039df7aff1420d17c0783
SHA1 hash:
3d763a810fba8b00f553b1efd1cf7f7888d88a52
SH256 hash:
65549cd6cd7bd2095bc009eaf38adb4b2e05edbb2f356fd4f49785e89a1d92e6
MD5 hash:
950e79a60e2fd834ba1ab5805e625e92
SHA1 hash:
71e08527d7f29c85a052822bc3df71426eeb1188
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
9bd7b6f993657893e3d06eac033339afac6dda77e451f72e114f4ec19fb6b157
MD5 hash:
741fa4302597a591467265f02ded885b
SHA1 hash:
d3bb3f1a0f1172fbc23df1e60c9739d6927f5700
SH256 hash:
ae3265f92808fea0360accc443bac8bb87be3acb50c08e384ea3983853795176
MD5 hash:
9dbcabf0090b194ef5e9a65da2578ef4
SHA1 hash:
af6414d6b67e110f47b9814e26b62632584bb1eb
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_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:Formbook
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
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/

File information


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

Malspam

Formbook

Executable exe 0a58c0fc52140fe8db183739b7d4c075285221b67e4c8199c054f1c74e82e291

(this sample)

  
Delivery method
Distributed via e-mail attachment

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