Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2569f0c37ff84dd327ff0582104c59478dfc3ac20f7ae5e3c531be5e636f3fea629
MD54c074fd2dc2db09e1371de82de0adc71
File Typecmd
Size0.2 KB
First Seen2023-02-07
File Namein.cmd
Tagscmd, matanbuchus, script

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

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

Threat Indicators (IOC)

  • SHA256: 9f0c37ff84dd327ff0582104c59478dfc3ac20f7ae5e3c531be5e636f3fea629
  • MD5: 4c074fd2dc2db09e1371de82de0adc71

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: 9f0c37ff84dd327f"
        threat_level = "high"
        first_seen = "2023-02-07"
    condition:
        hash.sha256(0, filesize) == "9f0c37ff84dd327ff0582104c59478dfc3ac20f7ae5e3c531be5e636f3fea629"
}

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 9f0c37ff84dd327ff0582104c59478dfc3ac20f7ae5e3c531be5e636f3fea629 # MD5 4c074fd2dc2db09e1371de82de0adc71
TypeValueNote
sha256 9f0c37ff84dd327ff0582104c59478dfc3ac20f7ae5e3c531be5e636f3fea629 Sample:Matanbuchus
md5 4c074fd2dc2db09e1371de82de0adc71 Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi