MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139. 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


Matanbuchus


Vendor detections: 12


Intelligence 12 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139
SHA3-384 hash: 0a5588a3a8bca26b947f9babd8466d8dd52ab55da8bc4e295af2419a3929d5702869471cb940b989b6d387aa9e215cb7
SHA1 hash: 3341662884ee54dc51c461aa68bcc8f1c50964b5
MD5 hash: fae983329315cd7483dc94f0c8e48f42
humanhash: pasta-michigan-pip-washington
File name:file
Download: download sample
Signature Matanbuchus
Create hunting rule
File size:1'716'224 bytes
First seen:2024-09-12 11:06:19 UTC
Last seen:2024-09-13 18:23:23 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash 9bba14b60521bb9d8fc0cdccaebd387a (1 x Matanbuchus)
ssdeep 24576:moeIbnLB0ZvvEHFy6r17/WJ7f05mMkj/E/OHdKjtIgTf5gOSXQF+Tt9g7wo1Ysi:mRZ046rtpmMo1HdKjT7SgF+fg7wo1j
TLSH T142853A18D780E91AD46E05B8BB58CBAE145C71395FC8088B77C42FDA7A693E4D6B1F03
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Bitsight
Tags:dll matanbuchus


Avatar
Bitsight
url: https://bymett.com/data/index.aspx

Intelligence

File Origin
# of uploads :
89
# of downloads :
525
Origin country :
PT PT
Vendor Threat Intelligence
Detection(s):
Win.Trojan.Matanbuchus-9870980-0
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ditekSHen.INDICATOR.Packed.TriumphLoader.UNOFFICIAL
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Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e2cb5876bc4542b049819e
Tags:
Stealth
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cpl fingerprint microsoft_visual_cc
Link:
https://www.filescan.io/uploads/66e2cb5a87af302661ef8deb/reports/5bf730fb-09c3-432c-bcdf-af126c7a500e/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/befd7c04-ab66-4b16-9094-95ac04d2309a
Result
Threat name:
Matanbuchus
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1510022
Signature
AI detected suspicious sample
Found potential dummy code loops (likely to delay analysis)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Matanbuchus
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1510022 Sample: file.dll Startdate: 12/09/2024 Architecture: WINDOWS Score: 72 22 Malicious sample detected (through community Yara rule) 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Yara detected Matanbuchus 2->26 28 AI detected suspicious sample 2->28 7 loaddll32.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        11 regsvr32.exe 7->11         started        13 conhost.exe 7->13         started        15 3 other processes 7->15 process5 17 rundll32.exe 9->17         started        signatures6 20 Found potential dummy code loops (likely to delay analysis) 17->20
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-09-12 11:07:05 UTC
File Type:
PE (Dll)
AV detection:
14 of 24 (58.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7ixnhin3k23fa426mzraizuljeydpdlh6mdtla5ohx6hmkgyee4q._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/240912-m7zbwsshkm/
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139
MD5 hash:
fae983329315cd7483dc94f0c8e48f42
SHA1 hash:
3341662884ee54dc51c461aa68bcc8f1c50964b5
Detections:
matanbuchus
Create hunting rule
Link:
https://www.unpac.me/results/097f3825-8917-4f23-bd1d-daf31b84b86a/
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/fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:crime_win32_matanbuchus_loader
Create hunting rule
Author:Rony
Description:Detects Matanbuchus loader dll
Rule name:DebuggerCheck__API
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:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:Matanbuchus_name_only
Create hunting rule
Author:James_inthe_box
Description:Matanbuchus
Reference:https://twitter.com/pr0xylife/status/1537511268591992840
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_Matanbuchus_4ce9affb
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Matanbuchus_58a61aaa
Create hunting rule
Author:Elastic Security

File information

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

Web download

Matanbuchus

DLL dll fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139

(this sample)

  
Dropped by
Matanbuchus
  
Delivery method
Distributed via web download

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 (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::FindFirstFileA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegSetValueExW

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