Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA25615097d2f74343c844eddaf977e411939b5060d9be365ac28b34c2c3d489f0b41
MD584702bd6e798481f81066c1e0671ae03
File Typedll
Size522.9 KB
First Seen2021-12-14
File Name15097d2f74343c844eddaf977e411939b5060d9be365ac28b34c2c3d489f0b41
TagsALUSEN d. o. o., dll, matanbuchus, signed

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

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

Threat Indicators (IOC)

  • SHA256: 15097d2f74343c844eddaf977e411939b5060d9be365ac28b34c2c3d489f0b41
  • MD5: 84702bd6e798481f81066c1e0671ae03

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: 15097d2f74343c84"
        threat_level = "high"
        first_seen = "2021-12-14"
    condition:
        hash.sha256(0, filesize) == "15097d2f74343c844eddaf977e411939b5060d9be365ac28b34c2c3d489f0b41"
}

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 15097d2f74343c844eddaf977e411939b5060d9be365ac28b34c2c3d489f0b41 # MD5 84702bd6e798481f81066c1e0671ae03
TypeValueNote
sha256 15097d2f74343c844eddaf977e411939b5060d9be365ac28b34c2c3d489f0b41 Sample:Matanbuchus
md5 84702bd6e798481f81066c1e0671ae03 Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi