MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 7f66770624e2d4bd51029a71cf7311cb873ee6fff6a694e4235577d0322a9937. 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
| SHA256 hash: | 7f66770624e2d4bd51029a71cf7311cb873ee6fff6a694e4235577d0322a9937 |
|---|---|
| SHA3-384 hash: | 5ff4bcb5d77fe62c9e44f111761988e1d4fa3fba81e374c8b318ace5a9544bd00535a08b7cb33c103cdc2c7c67fbdb37 |
| SHA1 hash: | 2722f891bf534e763b5b742b7e5ece905ab35137 |
| MD5 hash: | e6092582959219117440fbdd77d2cc53 |
| humanhash: | sink-thirteen-magnesium-island |
| File name: | useraccount.aspx |
| Download: | download sample |
| Signature | Matanbuchus |
| File size: | 932'352 bytes |
| First seen: | 2024-09-28 01:20:50 UTC |
| Last seen: | 2024-09-30 15:59:02 UTC |
| File type: |  dll |
| MIME type: | application/x-dosexec |
| imphash | 2a436809b709aeaf681e453703a73cdc (1 x Matanbuchus) |
| ssdeep | 24576:lLaUDWCxeIacvy1wf0nWtq3f2PeIm/DEhbgD1yhr4+1zDw4bDz:lLtDWCxeIaYy+f1E3OPeImrEtgDchr46 |
| Threatray | 6 similar samples on MalwareBazaar |
| TLSH | T101153A19F942E718D8A68138B611EAEB159D393112570C83F9D17FCE3D58AF19AB2F03 |
| 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 |  NDA0E |
| Tags: | dll matanbuchus mazurax-com vidar |
Intelligence
File Origin
# of uploads :
324
# of downloads :
419
Origin country :
NLVendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
Malware
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
cmd fingerprint lolbin masquerade microsoft_visual_cc shell32
Verdict:
Malicious
Labled as:
Zusy.Generic
Result
Verdict:
MALICIOUS
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
Result
Threat name:
Matanbuchus
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after checking mutex)
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
Sigma detected: Potentially Suspicious Malware Callback Communication
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:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Whispergate
Status:
Malicious
First seen:
2024-09-28 01:21:05 UTC
File Type:
PE (Dll)
AV detection:
15 of 24 (62.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
matanbuchus
Similar samples:
Result
Malware family:
n/a
Score:
3/10
Tags:
discovery
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
7f66770624e2d4bd51029a71cf7311cb873ee6fff6a694e4235577d0322a9937
MD5 hash:
e6092582959219117440fbdd77d2cc53
SHA1 hash:
2722f891bf534e763b5b742b7e5ece905ab35137
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | crime_win32_matanbuchus_loader |
|---|---|
| Author: | Rony |
| Description: | Detects Matanbuchus loader dll |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Windows_Trojan_Matanbuchus_58a61aaa |
|---|---|
| Author: | Elastic Security |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
| CHECK_NX | Missing Non-Executable Memory Protection | critical |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessW KERNEL32.dll::CloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleOutputCP |
| WIN_BASE_IO_API | Can Create Files | SHELL32.dll::SHCreateDirectoryExW KERNEL32.dll::CreateFileW KERNEL32.dll::GetWindowsDirectoryW |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegSetValueExW |
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