MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8409c2dbea8abea1f92301840dbd317620a985ccf323fb3df04ae51703786cb6. 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: 21


Intelligence 21 IOCs YARA 20 File information Comments

SHA256 hash: 8409c2dbea8abea1f92301840dbd317620a985ccf323fb3df04ae51703786cb6
SHA3-384 hash: 64661eaf6fd97826b0c7d8c4bc12dcc55c3cc4dff194decb0aa9713b39c64561023a971302374ecba2bb4e5b6ad4d7cc
SHA1 hash: 256a36e7f1d168a9d63e8cdd5303cee5e374cb2b
MD5 hash: 06eaaf586b03e42572d0406efc6368c4
humanhash: venus-oscar-summer-utah
File name:MT Caribbean 1 Vessel Specification.scr
Download: download sample
Signature Formbook
File size:739'328 bytes
First seen:2026-01-07 06:06:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:bKa4ctN7IBWXWWW4lBgxJh5yecjwwJDToqat3OWmdMIieUX0ObX1a+FRJJTjYiQ9:+aTrIH4l2A3jwwh8SLdUEUBRJJQicXV
TLSH T18EF40118020BDC07C1D54FBAA8B1E7B437295EDFB9D2D6979FC53FDBB4296860A40242
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 threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
135
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
MT Caribbean 1 Vessel Specification.scr
Verdict:
Malicious activity
Analysis date:
2026-01-07 06:07:57 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
70%
Tags:
malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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:
davinci formbook krypt masquerade packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-07T02:38:00Z UTC
Last seen:
2026-01-09T04:35:00Z UTC
Hits:
~1000
Detections:
Backdoor.Agent.HTTP.C&C Trojan.MSIL.Taskun.sb Trojan.MSIL.Inject.sb VHO:Backdoor.Win32.Convagent.gen PDM:Trojan.Win32.Generic HEUR:Trojan.MSIL.Taskun.gen HEUR:Trojan.MSIL.Injector.gen Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Crypt.sb Trojan-Spy.Noon.HTTP.ServerRequest Trojan-PSW.Win32.Stealer.sb HEUR:Trojan.MSIL.Agent.gen
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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 FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1845825 Sample: MT Caribbean 1 Vessel Speci... Startdate: 07/01/2026 Architecture: WINDOWS Score: 100 34 www.tq2xyj.info 2->34 36 www.torila.life 2->36 38 13 other IPs or domains 2->38 46 Suricata IDS alerts for network traffic 2->46 48 Antivirus detection for URL or domain 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 6 other signatures 2->52 11 MT Caribbean 1 Vessel Specification.scr.exe 3 2->11         started        signatures3 process4 file5 32 MT Caribbean 1 Ves...ication.scr.exe.log, ASCII 11->32 dropped 62 Injects a PE file into a foreign processes 11->62 15 MT Caribbean 1 Vessel Specification.scr.exe 11->15         started        signatures6 process7 signatures8 64 Maps a DLL or memory area into another process 15->64 18 LE0SFbzo.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 YSqxBiVOPFOtT.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, 49706, 49707, 49708 STRATOSTRATOAGDE Germany 23->40 42 study.com 18.165.116.53, 49726, 49727, 49728 MIT-GATEWAYSUS United States 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: 0.28 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2026-01-07 05:25:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_078 formbook
Similar samples:
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
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:
8409c2dbea8abea1f92301840dbd317620a985ccf323fb3df04ae51703786cb6
MD5 hash:
06eaaf586b03e42572d0406efc6368c4
SHA1 hash:
256a36e7f1d168a9d63e8cdd5303cee5e374cb2b
SH256 hash:
f705bc429bb31da8c395272caa0fbf4b7e963c94dfdfd68159c0c263278aea69
MD5 hash:
4a8b432fb543490468a525ee1829cefc
SHA1 hash:
2d99f6248a8201084694b587ab1812f1e99b2cf6
SH256 hash:
9bd7b6f993657893e3d06eac033339afac6dda77e451f72e114f4ec19fb6b157
MD5 hash:
741fa4302597a591467265f02ded885b
SHA1 hash:
d3bb3f1a0f1172fbc23df1e60c9739d6927f5700
SH256 hash:
85e7cc53d0cc8c28d02d2bdbf1621ba6d0fb1253aa87fc9ae352bc061a30c1f2
MD5 hash:
10da737d8fed4d11000781f0e5c90ef8
SHA1 hash:
fa1e821f1ef0695a40334f2f37b9293d7d803f5a
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
0cb5b7ff8e8c0f5237ba70ab51aaa0fb9f33e437fc6a5e9878af1192da450c37
MD5 hash:
c116ec5c7688d16265572bd9b21bc401
SHA1 hash:
a9b6764c5d13402b383fc47d82937f7ca4d84eeb
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: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 8409c2dbea8abea1f92301840dbd317620a985ccf323fb3df04ae51703786cb6

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments