MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347
SHA3-384 hash: eccd11dfe39a8f99c34a8effb16c0b5a6f60cb735d4b150e732431737002c4952fa661607fa582e894c882f4c9fbd5ed
SHA1 hash: 8ef0a3c02af5c10b68bc922984e6ce80e33a962f
MD5 hash: b4fd65e6e620e86de4d38cd24d0599b2
humanhash: nevada-uranus-mexico-twelve
File name:mwZXMc6QhO81beF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:659'968 bytes
First seen:2025-12-01 22:16:29 UTC
Last seen:2025-12-07 11:17:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:59xHCIB7Fk7fhQO7f1PHmJ946BE1c+bQ2O7KHluntsk:5DCWwf9f1eXBE1Pbi7Nnl
Threatray 2'264 similar samples on MalwareBazaar
TLSH T1E4E401578E9CDB43F8A017F62D33DA781B652E0DA021E3DF06EA4CDF79157211C8826A
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 :
935
# of downloads :
117
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/f053c96c-de85-4dc5-99d0-fbb96b12464f/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
mwZXMc6QhO81beF.exe
Verdict:
Malicious activity
Analysis date:
2025-12-01 22:18:45 UTC
Tags:
auto-sch-xml formbook stealer xloader
Link:
https://app.any.run/tasks/6886f452-33f4-4dab-bfe8-3f27e7f6dd73

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/42081/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692e13ec16e6db515e45b063
Tags:
micro shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/692e13ea23d7ce46ce42a107/reports/4191e0d8-0e60-45b6-98f3-e33d87205c4b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-01T15:43:00Z UTC
Last seen:
2025-12-03T19:34:00Z UTC
Hits:
~1000
Detections:
Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb HEUR:Trojan.MSIL.Taskun.sb Trojan.Win32.SpeedBit.sb Trojan.Win32.Agent.sb Trojan.MSIL.Taskun.sb HEUR:Backdoor.Win32.Convagent.gen Trojan-Spy.Win32.Noon.sb HEUR:Trojan.MSIL.Agent.gen Trojan-Dropper.Win32.Injector.sb Trojan.MSIL.Agent.sb PDM:Trojan.Win32.Generic Backdoor.Win32.Blakken.sb
Link:
https://opentip.kaspersky.com/db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/713b6cfa-acd2-47a4-9583-d09fb00b342f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1823988
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Sigma detected: Scheduled temp file as task from temp location
Switches to a custom stack to bypass stack traces
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1823988 Sample: mwZXMc6QhO81beF.exe Startdate: 01/12/2025 Architecture: WINDOWS Score: 100 59 www.usionconsultingpro.digital 2->59 61 www.osasohinopu.web.id 2->61 63 3 other IPs or domains 2->63 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 81 10 other signatures 2->81 11 mwZXMc6QhO81beF.exe 7 2->11         started        15 BBsskXnFJ.exe 5 2->15         started        signatures3 process4 file5 51 C:\Users\user\AppData\Roaming\BBsskXnFJ.exe, PE32 11->51 dropped 53 C:\Users\...\BBsskXnFJ.exe:Zone.Identifier, ASCII 11->53 dropped 55 C:\Users\user\AppData\Local\...\tmp3EF6.tmp, XML 11->55 dropped 57 C:\Users\user\...\mwZXMc6QhO81beF.exe.log, ASCII 11->57 dropped 91 Uses schtasks.exe or at.exe to add and modify task schedules 11->91 93 Adds a directory exclusion to Windows Defender 11->93 95 Tries to delay execution (extensive OutputDebugStringW loop) 11->95 103 2 other signatures 11->103 17 mwZXMc6QhO81beF.exe 11->17         started        20 powershell.exe 23 11->20         started        22 powershell.exe 23 11->22         started        24 schtasks.exe 1 11->24         started        97 Multi AV Scanner detection for dropped file 15->97 99 Tries to detect virtualization through RDTSC time measurements 15->99 101 Injects a PE file into a foreign processes 15->101 26 BBsskXnFJ.exe 15->26         started        28 schtasks.exe 15->28         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 17->65 67 Maps a DLL or memory area into another process 17->67 69 Sample uses process hollowing technique 17->69 71 Queues an APC in another process (thread injection) 17->71 30 explorer.exe 32 1 17->30 injected 73 Loading BitLocker PowerShell Module 20->73 32 conhost.exe 20->32         started        34 WmiPrvSE.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 28->40         started        process9 process10 42 help.exe 30->42         started        45 rundll32.exe 30->45         started        signatures11 83 Modifies the context of a thread in another process (thread injection) 42->83 85 Maps a DLL or memory area into another process 42->85 87 Tries to detect virtualization through RDTSC time measurements 42->87 89 2 other signatures 42->89 47 cmd.exe 42->47         started        process12 process13 49 conhost.exe 47->49         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.38 Win 32 Exe x86
Link:
https://app.malva.re/file/b4fd65e6e620e86de4d38cd24d0599b2
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2025-12-01 19:45:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3nqd2kjyeggkbok4mbfddgcy2ysza5abveyx7l6omxmrnr4fqndq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
62641672222e838c59836451c910b29233433eb80581fc7f3672de2b6a33b365
Formbook
68358632af8885e3e550eb075c1bc1b2f38e2366fc8e2c19c8fb065865b174c3
Formbook
69ae2e849e4b148f879630ae9e3a4f991602cc6a658dd732dd775c31839d69ce
Formbook
87c9b23d3ac3e48910f9d204708f95d337fab4161b5fc8a9a32735cfe7b8d83d
Formbook
dcba50a5be328e080a5496812c9c9d0d2f3bda66372fb376b716997e6323c16d
Formbook
e710b54964053441596c34b3d478d6784b314ffd8bacec9def124050b2a86f04
Formbook
error
Formbook
+ 2'254 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ms04 discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/251201-17frfac12b/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0b760f96-087e-493a-923f-9390836558c8
Unpacked files
SH256 hash:
db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347
MD5 hash:
b4fd65e6e620e86de4d38cd24d0599b2
SHA1 hash:
8ef0a3c02af5c10b68bc922984e6ce80e33a962f
Link:
https://www.unpac.me/results/9eae29e8-f659-40f9-b2c2-dd19d8dcd491/
SH256 hash:
08811e6be8e45367ff05a3ddfa5238847d914a1bcf95833272091e8287d1af37
MD5 hash:
6b45fbda70cff381fc1327b4e4d97624
SHA1 hash:
0a8ef6e5b4042251eeb5e79871ce601d1d91ce86
Link:
https://www.unpac.me/results/9eae29e8-f659-40f9-b2c2-dd19d8dcd491/
SH256 hash:
e2e17add46c710ee41c66dc26e14f0ede717c06aeeecb4e5d28111d15a1d41f3
MD5 hash:
81183738af0a24e4805fafa196691b0b
SHA1 hash:
369d22236505fb0d7c47cd332397fd35f09a1243
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/9eae29e8-f659-40f9-b2c2-dd19d8dcd491/
SH256 hash:
e1fd6332ad3ce4d96908b2a06a09d9de735766fad7e2201cc03d6d6048a5830e
MD5 hash:
bbeb858b95bab80a021316200c5cdd59
SHA1 hash:
cafa69e6b87c1933068fcd6f23a1e2dd45e35497
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/9eae29e8-f659-40f9-b2c2-dd19d8dcd491/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/db603d293821/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe db603d2938218ca0b95c604a319858d625907401a9317fafce65d916c7858347

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/42081/

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