Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2566816ce83583a9d979dc42c8b73573c7929eba17a018f33b08a281b41035acce9
MD59a5d78b3d8c1c52b8590d95c30a312cf
File Typedll
Size535.5 KB
First Seen2022-02-10
File Name6816ce83583a9d979dc42c8b73573c7929eba17a018f33b08a281b41035acce9
TagsBelialDropper, dll, matanbuchus

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

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

Threat Indicators (IOC)

  • SHA256: 6816ce83583a9d979dc42c8b73573c7929eba17a018f33b08a281b41035acce9
  • MD5: 9a5d78b3d8c1c52b8590d95c30a312cf

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: 6816ce83583a9d97"
        threat_level = "high"
        first_seen = "2022-02-10"
    condition:
        hash.sha256(0, filesize) == "6816ce83583a9d979dc42c8b73573c7929eba17a018f33b08a281b41035acce9"
}

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 6816ce83583a9d979dc42c8b73573c7929eba17a018f33b08a281b41035acce9 # MD5 9a5d78b3d8c1c52b8590d95c30a312cf
TypeValueNote
sha256 6816ce83583a9d979dc42c8b73573c7929eba17a018f33b08a281b41035acce9 Sample:Matanbuchus
md5 9a5d78b3d8c1c52b8590d95c30a312cf Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi