MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a
SHA3-384 hash: e52a22b023faefa5828e3c00656af9ef9c7e7d1ffcc3c61ad86242101c8b13ba1ccac189dc4bbca03d3b571dd2341ac7
SHA1 hash: 412d56c84fccae68bb7d3f86efc9a55cd0c9cd47
MD5 hash: d50e25eee3195bc6b89f70aa5f4e8724
humanhash: avocado-berlin-earth-july
File name:file
Download: download sample
Signature Matanbuchus
Create hunting rule
File size:565'248 bytes
First seen:2024-10-05 12:00:10 UTC
Last seen:2024-10-06 10:47:51 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash e679993a9a021324500c8f2aca366804 (1 x Matanbuchus)
ssdeep 12288:DQNOvoOTZJQ+GpXi0CSccTbtIbxrxqjZ8:kQosxGNi03lOxsjZ8
Threatray 7 similar samples on MalwareBazaar
TLSH T138C45B1CFE51ED18EC9B01BCBA1AEB99144D3131A788488376C22F5A1DB03D599BBF47
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 init-module matanbuchus


Avatar
Bitsight
url: https://semurox.com/account.aspx

Intelligence

File Origin
# of uploads :
134
# of downloads :
374
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67012a7fb932c04ee8fd0e55
Tags:
Malware
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm cmd fingerprint lolbin microsoft_visual_cc shell32
Link:
https://www.filescan.io/uploads/67012a7e2ffc4aa295942586/reports/bc2ec878-47cb-4b1b-849b-ed06a23e07f1/overview
Verdict:
Malicious
Labled as:
Trojan/Agent.bwb
Link:
https://www.hybrid-analysis.com/sample/7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/db3c99c3-c16e-4aa6-bef2-486ac41dd90d
Result
Threat name:
Matanbuchus
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1526366
Signature
AI detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Uses known network protocols on non-standard ports
Yara detected Matanbuchus
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1526366 Sample: file.dll Startdate: 05/10/2024 Architecture: WINDOWS Score: 100 31 vilodeqa.com 2->31 33 semurox.com 2->33 39 Multi AV Scanner detection for domain / URL 2->39 41 Suricata IDS alerts for network traffic 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 5 other signatures 2->45 8 loaddll32.exe 1 2->8         started        10 regsvr32.exe 2->10         started        signatures3 process4 process5 12 rundll32.exe 12 8->12         started        17 rundll32.exe 6 8->17         started        19 cmd.exe 1 8->19         started        23 15 other processes 8->23 21 regsvr32.exe 6 10->21         started        dnsIp6 35 semurox.com 193.109.85.27, 443, 49730 M247GB Russian Federation 12->35 37 vilodeqa.com 193.109.85.31, 443, 49731, 49732 M247GB Russian Federation 12->37 29 C:\Users\user\8f08\user-PC\user-PC.ocx, PE32 12->29 dropped 47 System process connects to network (likely due to code injection or exploit) 12->47 25 rundll32.exe 19->25         started        27 WerFault.exe 23->27         started        file7 signatures8 process9
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-10-05 11:42:51 UTC
File Type:
PE (Dll)
AV detection:
15 of 38 (39.47%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=plwtr7j2qv7jylycu4dyeii2eahe2x46saqg42zfnv3h3s6mgmna._file
Verdict:
malicious
Label(s):
matanbuchus
Create hunting rule
Similar samples:
17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40
Matanbuchus
45744c09a6f601aac847229a7b68c93427fa15e96ab814a58038620551896f39
Matanbuchus
7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a
Matanbuchus
7f66770624e2d4bd51029a71cf7311cb873ee6fff6a694e4235577d0322a9937
Matanbuchus
error
Matanbuchus
fa2ed3a1bb56b650735e666204668b4930378d67f3073583ae3dfc7628d82139
Matanbuchus
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/241005-n6v4hsxcpa/
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a
MD5 hash:
d50e25eee3195bc6b89f70aa5f4e8724
SHA1 hash:
412d56c84fccae68bb7d3f86efc9a55cd0c9cd47
Link:
https://www.unpac.me/results/0f5d12c6-b079-480a-99e4-4a959e770c47/
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/7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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: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 7aed38fd3a857e9c2f02a70782211a200e4d5f9e90206e6b256d767dcbcc331a

(this sample)

  
Dropped by
Matanbuchus
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3168663/
  
URLhaus
https://urlhaus.abuse.ch/url/3213954/

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::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 FilesSHELL32.dll::SHCreateDirectoryExW
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegSetValueExW

Comments