MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a. 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
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SHA256 hash: 4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a
SHA3-384 hash: ea267c696c5057ae22b4519909782b0b569848ed856f117bf98d3b906304cf53d516ec148e18b10cd9923984d204e473
SHA1 hash: a976f49ad1e1676f2d88a67a8641117ff976ef7f
MD5 hash: 41783ce900c5078b1cd2bf16f8519c90
humanhash: yankee-music-march-river
File name:MT TBA VESSEL INFORMATION.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'002'496 bytes
First seen:2026-01-19 04:37:30 UTC
Last seen:2026-02-05 15:17:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'795 x AgentTesla, 19'692 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 24576:38fK+sNgfiMuG2zBEGtqEyySW6XNaU1Tn8B:gjSkGESqrWE1g
Threatray 2'536 similar samples on MalwareBazaar
TLSH T165250154372EDB23C52947B45860F274137E2D9BAA91E2534EE8BEEF7871F044A40B93
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 :
3
# of downloads :
143
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/d5c017f3-4a3e-47d7-acfa-78af13351094/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
MT TBA VESSEL INFORMATION.exe
Verdict:
Malicious activity
Analysis date:
2026-01-19 04:38:56 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/33c7c275-62dc-4ce4-945a-101d71a41b86

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/49292/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=696db548bcad3327ec063cea
Tags:
malware
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
krypt packed
Link:
https://www.filescan.io/uploads/696db544584f1963ad5ada7d/reports/41ea040d-90e9-4781-8564-3a0ac3937bd9/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-18T22:28:00Z UTC
Last seen:
2026-01-21T01:35:00Z UTC
Hits:
~1000
Detections:
Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb VHO:Backdoor.Win32.Agent.gen Trojan-Spy.Noon.HTTP.ServerRequest HEUR:Trojan-Spy.MSIL.Noon.gen BSS:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb
Link:
https://opentip.kaspersky.com/4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a/results?tab=lookup
Malware family:
KeyBase
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/22d704a7-93e9-4e62-b4bc-fd51711e3bb6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1853103
Signature
.NET source code contains potential unpacker
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1853103 Sample: MT TBA VESSEL INFORMATION.exe Startdate: 19/01/2026 Architecture: WINDOWS Score: 100 35 s3.ueyzqqnhdwf.top 2->35 37 goranstaxi.se 2->37 39 7 other IPs or domains 2->39 47 Suricata IDS alerts for network traffic 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected FormBook 2->51 53 4 other signatures 2->53 11 MT TBA VESSEL INFORMATION.exe 4 2->11         started        signatures3 process4 file5 31 C:\...\MT TBA VESSEL INFORMATION.exe.log, ASCII 11->31 dropped 33 C:\Users\user\Desktop\PWB.dll, PE32 11->33 dropped 14 MT TBA VESSEL INFORMATION.exe 11->14         started        process6 signatures7 63 Maps a DLL or memory area into another process 14->63 17 DmlrYWbNP0cX.exe 14->17 injected process8 process9 19 unlodctr.exe 13 17->19         started        signatures10 55 Tries to steal Mail credentials (via file / registry access) 19->55 57 Tries to harvest and steal browser information (history, passwords, etc) 19->57 59 Modifies the context of a thread in another process (thread injection) 19->59 61 4 other signatures 19->61 22 MfVsFg8oKgLH.exe 19->22 injected 25 chrome.exe 19->25         started        27 firefox.exe 19->27         started        process11 dnsIp12 41 s3.ueyzqqnhdwf.top 43.226.78.180, 49734, 49735, 49736 CHINANET-LIAONING-DALIAN-MANCHINANETLiaoningprovinceDali China 22->41 43 goranstaxi.se 172.232.141.237, 49726, 49727, 49728 AKAMAI-ASN1EU United States 22->43 45 3 other IPs or domains 22->45 29 WerFault.exe 4 25->29         started        process13
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.49 Win 32 Exe x86
Link:
https://app.malva.re/file/41783ce900c5078b1cd2bf16f8519c90
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a
Threat name:
ByteCode-MSIL.Trojan.PureLogStealer
Create hunting rule
Status:
Malicious
First seen:
2026-01-19 02:00:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jyie3eumckcgowg3noqzqrhz7isifw4a7jt4qk5zbhv3tykgqz5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3a279099e6b83675a0f1b4ad779734a1c718d6b19a9ab225c54be70c78108ab5
Formbook
4eef5964d4be888f65a3410d0f60fd3559021aff06bf1448c919e294b7ecb72e
Formbook
571728e210ae139dc4fa0f18c737d161db62b197e8c5e28e28543b2bc074a549
Formbook
77be2ee5c55a9c5f20b6522fb6fbd174465481ad60b5143c95ee31e16fccaf8e
Formbook
99e787914a65e928c023070c9a029cf58d4e405e4952bbb1142b1c8e53edfcc6
Formbook
b824470ef9a3b58d253689fb4736e3c9f39aaacf1bee32cbf113f94117bd1d48
Formbook
dc868203fe63fc8e75865fcfe43849fc1a4fd6a845416dee9497834b158669eb
Formbook
e4ff62b66b02a6f78870344b002d83ae80391d1cc0b1651085f23f28d41f027b
Formbook
f4b9eef8e4ca04b9bef203109eab8639641ea0e8ee40e740b8743b436124cac1
Formbook
+ 2'526 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260119-e9lvksgw5c/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d0acad20-339f-49e8-bb79-ab41c2e27834
Unpacked files
SH256 hash:
4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a
MD5 hash:
41783ce900c5078b1cd2bf16f8519c90
SHA1 hash:
a976f49ad1e1676f2d88a67a8641117ff976ef7f
Link:
https://www.unpac.me/results/afc9c81c-2779-4ce4-ae03-b148ebb67e52/
SH256 hash:
f615401d5efc42d4beffda04a66562640a02abdeef8f82a788cb1041efc94880
MD5 hash:
946f9bba7c596fb91e59f0d174ac0c58
SHA1 hash:
37b373e410875dc266b266c7fee1ef77a36f1d85
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/afc9c81c-2779-4ce4-ae03-b148ebb67e52/
Parent samples :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 hash:
f56acd01bf08914656eb403facf3c785591bbcdca2918964e4c228132fe3715d
MD5 hash:
adde259476f0be0658dd10a5aecdce95
SHA1 hash:
4626a6ae0d60b4736217d0ba47eb3d0a1195579b
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/afc9c81c-2779-4ce4-ae03-b148ebb67e52/
SH256 hash:
2094497b3f255e8a87c2b757c2d70211bf9d57409352ccb7bfd396d41d332a93
MD5 hash:
cf4b62421ea5b6cc3c2e98c43cab27b3
SHA1 hash:
a35e74869129abb17e42a8670d71d6f75e6258dc
Link:
https://www.unpac.me/results/afc9c81c-2779-4ce4-ae03-b148ebb67e52/
SH256 hash:
83f731ca2b2297eea1592ba73700a69a704cbd69dac3d065c855669027a8adf0
MD5 hash:
85bbbbf468e67b56ff0df8a1b10e2408
SHA1 hash:
1554cc9831feb600d3a84ef4312941ad8d683dfa
Link:
https://www.unpac.me/results/afc9c81c-2779-4ce4-ae03-b148ebb67e52/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4e104d928c12/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.60
Link:
https://yomi.yoroi.company/submissions/4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a

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
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
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 4e104d928c12846758db6ba19844f9fa2482db80fa67c82bb909ebb9e146867a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/49292/

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