Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA256de26167160e7df91bbd992a3523ea6a82049932b947452bb58e9eed3011c769a
MD54bbba66b83cd6e31617f07daad0c64b4
File Typezip
Size191.2 KB
First Seen2022-06-17
File NameSCAN-287004-from-html-file.zip
Tagsmatanbuchus, zip

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

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

Threat Indicators (IOC)

  • SHA256: de26167160e7df91bbd992a3523ea6a82049932b947452bb58e9eed3011c769a
  • MD5: 4bbba66b83cd6e31617f07daad0c64b4

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: de26167160e7df91"
        threat_level = "high"
        first_seen = "2022-06-17"
    condition:
        hash.sha256(0, filesize) == "de26167160e7df91bbd992a3523ea6a82049932b947452bb58e9eed3011c769a"
}

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 de26167160e7df91bbd992a3523ea6a82049932b947452bb58e9eed3011c769a # MD5 4bbba66b83cd6e31617f07daad0c64b4
TypeValueNote
sha256 de26167160e7df91bbd992a3523ea6a82049932b947452bb58e9eed3011c769a Sample:Matanbuchus
md5 4bbba66b83cd6e31617f07daad0c64b4 Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi