MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4. 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: 20


Intelligence 20 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4
SHA3-384 hash: e1dfc06120d0308421027ebf137f829a3a66ed2c7b45945446b1bc88b1824dd4c497aeed14b8044275e17c47a21acc72
SHA1 hash: 72b7600962274de48d659fb73c127dc652fd76cd
MD5 hash: 6119979238f8f838dcf3badb5dcb235d
humanhash: timing-yellow-beryllium-delta
File name:TOI CHALLENGER PARTICULARSpdf.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:972'800 bytes
First seen:2026-01-20 07:27:06 UTC
Last seen:2026-02-05 15:22:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'813 x AgentTesla, 19'735 x Formbook, 12'282 x SnakeKeylogger)
ssdeep 24576:QJt2X0/Fhwh5Hdiq/9wTmM/VJjghX8I165:QJtxhwhldiq/9cz/Vo8I16
Threatray 2'536 similar samples on MalwareBazaar
TLSH T1BC2512983719E803C4554BB81D20E37913B48E5AF500D3928FEFBCD738A5B59BE98687
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 :
3
# of downloads :
129
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/21f2664a-fe50-4296-97e6-fb71908ed588/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
630dca1ba67ee2d0bbd3821fcefad1734ac12a848f27b3f4e0706772fc3c8982.zip
Verdict:
Malicious activity
Analysis date:
2026-01-20 06:49:07 UTC
Tags:
arch-exec formbook stealer xloader
Link:
https://app.any.run/tasks/2b86e39d-57b0-4a1e-8b1b-3fd1d6302884

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/49478/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=696f2563bcad3327ec06ae55
Tags:
micro
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
davinci krypt masquerade packed snakekeylogger unsafe
Link:
https://www.filescan.io/uploads/696f2e65f3c1b7b1fbd7fd86/reports/45ef47ca-88b1-4365-a55f-09373785dac7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-20T02:01:00Z UTC
Last seen:
2026-01-22T04:55:00Z UTC
Hits:
~1000
Detections:
UDS:DangerousObject.Multi.Generic Trojan-Spy.Win32.Noon.sb Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic VHO:Trojan-Spy.MSIL.Noon.gen Backdoor.Agent.HTTP.C&C VHO:Trojan.Win32.Sdum.gen HEUR:Trojan-Spy.MSIL.Noon.gen
Link:
https://opentip.kaspersky.com/44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d2dc62c2-fd08-442b-b4d0-d76d5a17125a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1853777
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: 1853777 Sample: TOI CHALLENGER PARTICULARSp... Startdate: 20/01/2026 Architecture: WINDOWS Score: 100 37 www.viptaka.cloud 2->37 39 www.unitedsharesbank.com 2->39 41 7 other IPs or domains 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected FormBook 2->53 55 4 other signatures 2->55 11 TOI CHALLENGER PARTICULARSpdf.scr.exe 3 2->11         started        signatures3 process4 file5 35 TOI CHALLENGER PAR...LARSpdf.scr.exe.log, ASCII 11->35 dropped 14 TOI CHALLENGER PARTICULARSpdf.scr.exe 11->14         started        17 TOI CHALLENGER PARTICULARSpdf.scr.exe 11->17         started        19 TOI CHALLENGER PARTICULARSpdf.scr.exe 11->19         started        process6 signatures7 65 Maps a DLL or memory area into another process 14->65 21 AzPMLyTBDAw.exe 14->21 injected process8 process9 23 unlodctr.exe 13 21->23         started        signatures10 57 Tries to steal Mail credentials (via file / registry access) 23->57 59 Tries to harvest and steal browser information (history, passwords, etc) 23->59 61 Modifies the context of a thread in another process (thread injection) 23->61 63 4 other signatures 23->63 26 6KlilqGFprFO4.exe 23->26 injected 29 chrome.exe 23->29         started        31 firefox.exe 23->31         started        process11 dnsIp12 43 offline.specialcdnstatus.com 169.254.254.254 USDOSUS Reserved 26->43 45 www.unitedsharesbank.com 198.251.89.229, 49692, 80 PONYNETUS United States 26->45 47 3 other IPs or domains 26->47 33 WerFault.exe 4 29->33         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.21 Win 32 Exe x86
Link:
https://app.malva.re/file/6119979238f8f838dcf3badb5dcb235d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-01-20 05:31:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=itwoh7lxdmsb46w3pofemml2udoohgvexakzckaf3zg4n73ddlsa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
77be2ee5c55a9c5f20b6522fb6fbd174465481ad60b5143c95ee31e16fccaf8e
Formbook
9334cab7d15dcdd5909b7002d21108d6c1c9d0da4436db37b48763e3e7b1e5e9
Formbook
99e787914a65e928c023070c9a029cf58d4e405e4952bbb1142b1c8e53edfcc6
Formbook
b824470ef9a3b58d253689fb4736e3c9f39aaacf1bee32cbf113f94117bd1d48
Formbook
c6aa56afa7a6941d9bb8786b07e192ea996d3a133c992285b58349cc5c204561
Formbook
dc868203fe63fc8e75865fcfe43849fc1a4fd6a845416dee9497834b158669eb
Formbook
e4ff62b66b02a6f78870344b002d83ae80391d1cc0b1651085f23f28d41f027b
Formbook
error
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/260120-jadr5scy2d/
Behaviour
Suspicious behavior: EnumeratesProcesses
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/a7e441b4-316a-4e08-9b3c-1870ac1ad35d
Unpacked files
SH256 hash:
44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4
MD5 hash:
6119979238f8f838dcf3badb5dcb235d
SHA1 hash:
72b7600962274de48d659fb73c127dc652fd76cd
Link:
https://www.unpac.me/results/e65a9517-4216-4bb9-9954-85f600bbba61/
SH256 hash:
2094497b3f255e8a87c2b757c2d70211bf9d57409352ccb7bfd396d41d332a93
MD5 hash:
cf4b62421ea5b6cc3c2e98c43cab27b3
SHA1 hash:
a35e74869129abb17e42a8670d71d6f75e6258dc
Link:
https://www.unpac.me/results/e65a9517-4216-4bb9-9954-85f600bbba61/
SH256 hash:
d4c5416bc2a5af3b1774ff39cb97559b60e9637b65e202e9d35cf1693f3ce471
MD5 hash:
6767996995d8a605a650adfb85503744
SHA1 hash:
b94096e4454ad8f0279c329b5a00a4578363d8d8
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/e65a9517-4216-4bb9-9954-85f600bbba61/
Parent samples :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 hash:
4594f0e4165ff58823d8ac2d2df432400ec69164b1beb3ddc52ca76b7f648a58
MD5 hash:
6572c25cb4d3e26e5201ebb7afd379fc
SHA1 hash:
d2e491021786563d10934bfbc48b3a9d85af37f8
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e65a9517-4216-4bb9-9954-85f600bbba61/
SH256 hash:
83f731ca2b2297eea1592ba73700a69a704cbd69dac3d065c855669027a8adf0
MD5 hash:
85bbbbf468e67b56ff0df8a1b10e2408
SHA1 hash:
1554cc9831feb600d3a84ef4312941ad8d683dfa
Link:
https://www.unpac.me/results/e65a9517-4216-4bb9-9954-85f600bbba61/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/44ece3fd771b/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/44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4

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 44ece3fd771b241e7adb7b8a46317aa0dce39aa4b815912805de4dc6ff631ae4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/49478/

Comments