MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72. 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: 19


Intelligence 19 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72
SHA3-384 hash: ec8366e5481cd74059add808929031e330c3da7693a054c1e8722b8b9bcd32affc36d3935fc7fd49e1d57f5304e8971e
SHA1 hash: 9b214fe9308c4808c6751d343b754e62f4b32462
MD5 hash: f026baf363988b26713193fa6b4fb674
humanhash: salami-diet-connecticut-orange
File name:P.O# 0725362.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:838'144 bytes
First seen:2025-08-23 06:57:45 UTC
Last seen:2025-09-05 13:10:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:mLoooooigooonb3e1Xe8wgHxz/GHroR2W:aoooooigooonb3ZcxT6y2
Threatray 415 similar samples on MalwareBazaar
TLSH T1E00502543A29AC17D8F6A2F04CB5D27803BD4D9E7860D3CA1EF66CCB3ED9B025601697
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 :
95
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
P.O0725362.rar
Verdict:
Malicious activity
Analysis date:
2025-08-23 00:00:15 UTC
Tags:
arch-exec netreactor formbook xloader stealer
Link:
https://app.any.run/tasks/c81559b2-3e45-48b5-812e-4aecfa0f2d1f

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/23124/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen3.40857.19709.1615.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a966a06eed937d746d3075
Tags:
virus krypt msil
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:
base64 bitmap crypt formbook krypt lolbin msbuild obfuscated packed packed reconnaissance regsvcs rezer0 roboski schtasks stego unsafe vbc vbnet zero
Link:
https://www.filescan.io/uploads/68a966a44a87ed796768eee6/reports/e91e270e-a5bf-41ff-842b-034ae700aca1/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-21T15:58:00Z UTC
Last seen:
2025-08-21T15:58:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/36962c20-ee73-409c-81bd-f41cc338eb38
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1763449
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
Performs DNS queries to domains with low reputation
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1763449 Sample: P.O# 0725362.exe Startdate: 23/08/2025 Architecture: WINDOWS Score: 100 34 www.ecpay-tw067.xyz 2->34 36 www.78452609.xyz 2->36 38 19 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 54 4 other signatures 2->54 11 P.O# 0725362.exe 3 2->11         started        signatures3 52 Performs DNS queries to domains with low reputation 36->52 process4 file5 32 C:\Users\user\...\P.O# 0725362.exe.log, ASCII 11->32 dropped 64 Injects a PE file into a foreign processes 11->64 15 P.O# 0725362.exe 11->15         started        signatures6 process7 signatures8 66 Maps a DLL or memory area into another process 15->66 18 U6GmkuFq.exe 15->18 injected process9 process10 20 proquota.exe 13 18->20         started        signatures11 56 Tries to steal Mail credentials (via file / registry access) 20->56 58 Tries to harvest and steal browser information (history, passwords, etc) 20->58 60 Modifies the context of a thread in another process (thread injection) 20->60 62 3 other signatures 20->62 23 GN2OGpjlT8.exe 20->23 injected 26 chrome.exe 20->26         started        28 firefox.exe 20->28         started        process12 dnsIp13 40 www.mireza.site 203.161.43.199, 49747, 49748, 49749 VNPT-AS-VNVNPTCorpVN Malaysia 23->40 42 www.hpzz.mobi 160.124.178.113, 49735, 49736, 49737 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 23->42 44 10 other IPs or domains 23->44 30 WerFault.exe 4 26->30         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.42 Win 32 Exe x86
Link:
https://app.malva.re/file/f026baf363988b26713193fa6b4fb674
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 21:27:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
32
AV detection:
29 of 38 (76.32%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j4zs6rddzicalwuftlghobzzonuj5lvczy5dmffdogxvowp3l5za._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
104d7263dd77981b760c26e0fb61986e6aa2a3e86eab2ae4bc7468cf28eaf902
Formbook
8fb46c0cd46a775f5510f5b94a0b579b023ec485137196d70febde274e7b2f57
Formbook
b5f7ce31c9333182fd55674e84e7a60e21cfdc92cf6b3b7286be53923a03386c
Formbook
b8a9598e5ab9a3cc65d1e011d01223128c6e6ce2dafe3409d33ac212a5192b82
Formbook
c69a7800b5482d1e8e984e2e5ad548e057e1e9236e3ba937b167833e9c3302e2
Formbook
cc6de21ebaf5b1da25218987714320f9dcc9dd38acad71a9513a42323621a2ed
Formbook
d89a76737ea433332fec51bc5662a0c87ed094e8dd6fcd9dd484377cc2ec5d88
Formbook
dceb92e559ad73d5df1807bb8786ceae9ab3d16176223f3250ad4f9514467220
Formbook
e2dc30f133c91cab67e24cebc23291f6953654e16d4ea2621dd64dd500c5cc9a
Formbook
+ 405 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/250823-hrr6estjw3/
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
Link:
https://app.threat.zone/submission/256294e6-7ef9-459d-a278-457fc253c4a2
Unpacked files
SH256 hash:
4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72
MD5 hash:
f026baf363988b26713193fa6b4fb674
SHA1 hash:
9b214fe9308c4808c6751d343b754e62f4b32462
Link:
https://www.unpac.me/results/7cf9703d-de03-4f6c-907f-b22ed8c2e2ce/
SH256 hash:
7f8b726debfd75e600a782585804fa5c253916e3f16398d33576d344add93246
MD5 hash:
b83b3ee9d8a2b47ae0fc3e02014465d7
SHA1 hash:
367cfe50a493040fbbc2700233227d000220bdce
Link:
https://www.unpac.me/results/7cf9703d-de03-4f6c-907f-b22ed8c2e2ce/
SH256 hash:
0b7cdf9dbe6f165393c87acaad5aa65e6882b9d5c54550ef3c597737e0ad32ff
MD5 hash:
7e4ca1b335ac6a61c1477a46e04dbaad
SHA1 hash:
a2ca1a9641a0ddc668c93f5f89eac2b67ecd0f8e
Link:
https://www.unpac.me/results/7cf9703d-de03-4f6c-907f-b22ed8c2e2ce/
SH256 hash:
0c7290a7bfd667843095ca3868570bff726fda0eb9d3e8f7e24e59636c3b8a1b
MD5 hash:
768ec1a2075e5a8409126ccf80282da1
SHA1 hash:
b57aa2e2b46aa93713c138debfa4e2c6fdf6fc90
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/7cf9703d-de03-4f6c-907f-b22ed8c2e2ce/
SH256 hash:
b8335fc8ae56016ec35f31dbcf76a0fab4a63443bc9f9083337f5caa6b5609c8
MD5 hash:
bf078e355505b5914fee4709d8ae6983
SHA1 hash:
c288bcadf16c12b28c5bf9b75a518974bfe40a26
Link:
https://www.unpac.me/results/7cf9703d-de03-4f6c-907f-b22ed8c2e2ce/
SH256 hash:
b5bb50a1e5add96bad08daaa7923566ee16a48ca099cd6745d3a00702761be89
MD5 hash:
26cd112eb1409fabfa3ab65c72ee79d8
SHA1 hash:
2b25e2d46055442c42aa81ab1e9fc87c6635e7ed
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/7cf9703d-de03-4f6c-907f-b22ed8c2e2ce/
Parent samples :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 family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4f332f4463ca/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.85
Link:
https://yomi.yoroi.company/submissions/4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72

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_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

Formbook

Executable exe 4f332f4463ca0405da859acc77073973689eaea2ce3a3614a371af5759fb5f72

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/23124/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments