MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23359a0966dd37e8253645a13817a539160ab54d210bd80b4c171c38a08f0351. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23359a0966dd37e8253645a13817a539160ab54d210bd80b4c171c38a08f0351
SHA3-384 hash: b07bef7e102143b26d3d2ceef148edb0291a74bfafde0ce621bab5727c6f41d9d6577cc90de04caf57ea1dd3cc5c64c7
SHA1 hash: 62dab624c3099de198b6e1c85ac18f75a8448510
MD5 hash: 0be9646a48d45a17513c6b6b4542f566
humanhash: triple-fillet-butter-alanine
File name:owenzx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'131'008 bytes
First seen:2022-09-15 12:55:17 UTC
Last seen:2022-09-15 14:24:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:eBbJ5KDietsAIBxk7JA+UX1m8gHUSa5e8PL:eB2DiAwSTUXEZHUS0pL
TLSH T10935E1181775C90AC8AEA274DCE1E3705F746DC5862FC35B09D83CABB63B3986C913A5
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2b2b2b2b2b2b2b2 (8 x Formbook, 5 x AgentTesla, 3 x Loki)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
317
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
owenzx.exe
Verdict:
Malicious activity
Analysis date:
2022-09-16 07:17:38 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/fe8aae75-7b65-4c25-b41c-9cfbd4146894

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/310276/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.19504.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Сreating synchronization primitives
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63232126ba7b8113dd64dd1c/reports/0eeabe2c-7245-4839-8a9e-1388f3fbcd4e/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e6b479d7-c3af-4aca-a6e9-88fcd413a5fb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1071045
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/23359a0966dd37e8253645a13817a539160ab54d210bd80b4c171c38a08f0351/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-09-15 12:56:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=em2zuclg3u36qjjwiwqtqf5fhelavnkneef5qc2mc4odriepaniq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:os56 rat spyware stealer trojan
Link:
https://tria.ge/reports/220915-p6dd5sdbb9/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/fb761443-255d-4caf-9a97-c65edeb627a9
Unpacked files
SH256 hash:
71e0f0b85a357c6942c94ca85b28b039ba3fec74ff0ba9c748b0853642724e31
MD5 hash:
9d69770f12819d5fec89a06d42a4a1e9
SHA1 hash:
529dc07b1fae900f6f3a27da0d7db51533ed0e77
Detections:
FormBook
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win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b7a8bd62-fd16-43ca-a905-e0b5e6d831f7/
Parent samples :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 hash:
37847061ada10cf531c60c943eb83581c0a128d9ef52ffeb36a6f88579df05f9
MD5 hash:
cbe8c6b493d06b4ae6f0009d2d95643c
SHA1 hash:
22440308564f96589274bf32ef55df27cb0cd629
Link:
https://www.unpac.me/results/b7a8bd62-fd16-43ca-a905-e0b5e6d831f7/
SH256 hash:
44c50087cbd9a86677ff5b898c1ad52abf5f25297179a174edcc8b81dec967fc
MD5 hash:
d012ba9057bf67c7f29871326f2af919
SHA1 hash:
1d5b8b512b37f0e1900496b578117082929654c7
Link:
https://www.unpac.me/results/b7a8bd62-fd16-43ca-a905-e0b5e6d831f7/
SH256 hash:
fe25fce1a110a5e3fa077f92c4dc006a6833553786ba52a8b536c2d0dae2f0ee
MD5 hash:
1792f12c4e3c1225b3900e378ae24388
SHA1 hash:
155ab86a319834b0b0e9cfc3d2fe6a7d945fc8e9
Link:
https://www.unpac.me/results/b7a8bd62-fd16-43ca-a905-e0b5e6d831f7/
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
Link:
https://www.unpac.me/results/b7a8bd62-fd16-43ca-a905-e0b5e6d831f7/
SH256 hash:
23359a0966dd37e8253645a13817a539160ab54d210bd80b4c171c38a08f0351
MD5 hash:
0be9646a48d45a17513c6b6b4542f566
SHA1 hash:
62dab624c3099de198b6e1c85ac18f75a8448510
Link:
https://www.unpac.me/results/b7a8bd62-fd16-43ca-a905-e0b5e6d831f7/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23359a0966dd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/23359a0966dd37e8253645a13817a539160ab54d210bd80b4c171c38a08f0351

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 23359a0966dd37e8253645a13817a539160ab54d210bd80b4c171c38a08f0351

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2286568/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/310276/

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