Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2562da8cee63e2c0fc378cd959b9b44c2c25b104c6b983f37b53147355713c90798
MD56d93cfc727ae86d8106297920ddb2d7c
File Typeexe
Size863.2 KB
First Seen2021-11-15
File Name6d93cfc727ae86d8106297920ddb2d7c
Tagsexe, matanbuchus

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

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

Threat Indicators (IOC)

  • SHA256: 2da8cee63e2c0fc378cd959b9b44c2c25b104c6b983f37b53147355713c90798
  • MD5: 6d93cfc727ae86d8106297920ddb2d7c

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: 2da8cee63e2c0fc3"
        threat_level = "high"
        first_seen = "2021-11-15"
    condition:
        hash.sha256(0, filesize) == "2da8cee63e2c0fc378cd959b9b44c2c25b104c6b983f37b53147355713c90798"
}

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 2da8cee63e2c0fc378cd959b9b44c2c25b104c6b983f37b53147355713c90798 # MD5 6d93cfc727ae86d8106297920ddb2d7c
TypeValueNote
sha256 2da8cee63e2c0fc378cd959b9b44c2c25b104c6b983f37b53147355713c90798 Sample:Matanbuchus
md5 6d93cfc727ae86d8106297920ddb2d7c Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi