Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA25692574c2ed2980a0095f5e0844e1b537ac2f422489fee79e068f91a0cebe2f83e
MD5caf17ec8d6d574f29693b3dc2ac4f6cd
File Typecmd
Size0.4 KB
First Seen2023-02-07
File NameOpen.cmd
Tagscmd, matanbuchus, Qakbot, Quakbot

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

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

Threat Indicators (IOC)

  • SHA256: 92574c2ed2980a0095f5e0844e1b537ac2f422489fee79e068f91a0cebe2f83e
  • MD5: caf17ec8d6d574f29693b3dc2ac4f6cd

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: 92574c2ed2980a00"
        threat_level = "high"
        first_seen = "2023-02-07"
    condition:
        hash.sha256(0, filesize) == "92574c2ed2980a0095f5e0844e1b537ac2f422489fee79e068f91a0cebe2f83e"
}

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 92574c2ed2980a0095f5e0844e1b537ac2f422489fee79e068f91a0cebe2f83e # MD5 caf17ec8d6d574f29693b3dc2ac4f6cd
TypeValueNote
sha256 92574c2ed2980a0095f5e0844e1b537ac2f422489fee79e068f91a0cebe2f83e Sample:Matanbuchus
md5 caf17ec8d6d574f29693b3dc2ac4f6cd Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi