MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40
SHA3-384 hash: 5ce193823306c49691526665d0036b68e45187929db90d4df0c7408f9d7e5ee7d47a38d17f4796950ff09045446c9666
SHA1 hash: 64006f712a8358817cc546922a1c402eb50a88dc
MD5 hash: e73d75e539b7e9acf48683fc6b2cb4ab
humanhash: delta-papa-washington-coffee
File name:file
Download: download sample
Signature Matanbuchus
Create hunting rule
File size:425'984 bytes
First seen:2024-09-12 10:26:09 UTC
Last seen:2024-09-28 05:29:38 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash 2b2df0c25d77d3cb214decd4b05eacb5 (1 x Matanbuchus)
ssdeep 12288:DqXLg/OBthPP7dUXOahcWUQcs2+2F6FH2PiuAdO:G7g/OvtP7dUX/hc7kdPH28O
TLSH T1F8946C98BAB2ED25E09B0538BA94D7D92C5C343047C86487B6C17FEF1CA4AE18975F13
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://motorans.com/account.aspx

Intelligence

File Origin
# of uploads :
2'654
# of downloads :
388
Origin country :
PT PT
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.FileRepMalware.3548.5832.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e2c1fa751db35a8b9f80c4
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmd fingerprint lolbin microsoft_visual_cc shell32
Link:
https://www.filescan.io/uploads/66e2c1fbbdad87459813d427/reports/8d570916-7fac-4384-86c0-2c0f7b10ed02/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40
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/356863f8-d5c5-473f-83a3-9b51eb43782f
Result
Threat name:
Matanbuchus
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1509998
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after checking mutex)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
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: 1509998 Sample: file.dll Startdate: 12/09/2024 Architecture: WINDOWS Score: 100 39 motorans.com 2->39 41 56.126.166.20.in-addr.arpa 2->41 53 Suricata IDS alerts for network traffic 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 7 other signatures 2->59 8 loaddll32.exe 1 2->8         started        10 regsvr32.exe 2->10         started        12 regsvr32.exe 2->12         started        14 regsvr32.exe 2->14         started        signatures3 process4 process5 16 rundll32.exe 8->16         started        19 rundll32.exe 12 8->19         started        23 cmd.exe 1 8->23         started        31 13 other processes 8->31 25 regsvr32.exe 10->25         started        27 regsvr32.exe 6 12->27         started        29 regsvr32.exe 14->29         started        dnsIp6 45 Found evasive API chain (may stop execution after checking mutex) 16->45 47 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 16->47 49 Found evasive API chain (may stop execution after checking locale) 16->49 43 motorans.com 193.109.85.43, 443, 49705, 49706 M247GB Russian Federation 19->43 37 C:\Users\user\8f08\user-PC\user-PC.ocx, PE32 19->37 dropped 33 rundll32.exe 23->33         started        51 System process connects to network (likely due to code injection or exploit) 25->51 35 WerFault.exe 31->35         started        file7 signatures8 process9
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-09-12 10:27:06 UTC
File Type:
PE (Dll)
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=c7eo6vbisqg6oom3gfs7wl336lzepzyiftquuldbdey6ukprdraa._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/240912-mg4hxssblh/
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40
MD5 hash:
e73d75e539b7e9acf48683fc6b2cb4ab
SHA1 hash:
64006f712a8358817cc546922a1c402eb50a88dc
Link:
https://www.unpac.me/results/fd1d9705-6ece-4410-9125-0285d901375f/
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/17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40

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 17c8ef5428940de7399b3165fb2f7bf2f247e7082ce14a2c611931ea29f11c40

(this sample)

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

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::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
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