Matanbuchus | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2569019a31723e8dde778639cf5c1eb599bf250d7b6a3a92ba0e3c85b0043644d93
MD59ec23afddcf2f8321e119ad78ff884e7
File Typeone
Size114.2 KB
First Seen2023-02-07
File NameItem.one
Tags.one, matanbuchus, one, OneNote

Malware Family: Matanbuchus

Matanbuchus, MaaS loader'dır.

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

Threat Indicators (IOC)

  • SHA256: 9019a31723e8dde778639cf5c1eb599bf250d7b6a3a92ba0e3c85b0043644d93
  • MD5: 9ec23afddcf2f8321e119ad78ff884e7

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: 9019a31723e8dde7"
        threat_level = "high"
        first_seen = "2023-02-07"
    condition:
        hash.sha256(0, filesize) == "9019a31723e8dde778639cf5c1eb599bf250d7b6a3a92ba0e3c85b0043644d93"
}

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 9019a31723e8dde778639cf5c1eb599bf250d7b6a3a92ba0e3c85b0043644d93 # MD5 9ec23afddcf2f8321e119ad78ff884e7
TypeValueNote
sha256 9019a31723e8dde778639cf5c1eb599bf250d7b6a3a92ba0e3c85b0043644d93 Sample:Matanbuchus
md5 9ec23afddcf2f8321e119ad78ff884e7 Sample:Matanbuchus
Tags
matanbuchusloadermalwarehighsha256hash-analizi