Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256df25230eb7c0ddbd033e4ac933eb0ef7fe76571fcc45bc112f9351d3837d9f8a
MD5107bf2bfbc9d52e72204996dd670663c
File Typejs
Size1088.5 KB
First Seen2024-07-29
File Nameout_nbpvg.js
Tagsjs, matanbuchus

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeMaaS loader
First Seen Year2021

Threat Indicators (IOC)

  • SHA256: df25230eb7c0ddbd033e4ac933eb0ef7fe76571fcc45bc112f9351d3837d9f8a
  • MD5: 107bf2bfbc9d52e72204996dd670663c

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network — the loader may be downloading more malware
  2. Analyze every downloaded payload
  3. Inspect all network traffic and cut suspicious connections
  4. Run a full antivirus scan
  5. Consider reimaging the system

YARA Rule Hints

rule Matanbuchus_SHA256 {
    meta:
        description = "Matanbuchus sample: df25230eb7c0ddbd"
        threat_level = "high"
        first_seen = "2024-07-29"
    condition:
        hash.sha256(0, filesize) == "df25230eb7c0ddbd033e4ac933eb0ef7fe76571fcc45bc112f9351d3837d9f8a"
}

Matanbuchus — Malware Profile

Matanbuchus loader. Session key özel kripto el sikisma. no malloc support C runtime. CreateMutexW.

Malware Type
Loader
Programming Language
C++
C2 Protocol
HTTPS
Target Systems
Windows

Technical Details

Loader ailesi: HTTP/HTTPS C2, payload sifre cozme ve bellek icerisinde yükleme, anti-sandbox/VM kontrolleri, process injection, persistence mekanizmasi, yükü indirme ve calistirma zinciri

Capabilities & Behavior

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC List (2 indicators)

IOC — Matanbuchus
# SHA256 df25230eb7c0ddbd033e4ac933eb0ef7fe76571fcc45bc112f9351d3837d9f8a # MD5 107bf2bfbc9d52e72204996dd670663c
TypeValueNote
sha256 df25230eb7c0ddbd033e4ac933eb0ef7fe76571fcc45bc112f9351d3837d9f8a Sample:Matanbuchus
md5 107bf2bfbc9d52e72204996dd670663c Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi