BlackBasta | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a8894d8a71082d2a2d8799129eada9db0b280fce75945f4323e230ec26ec28d0
MD561096cf4b3a039051c57903e82da173c
File Typeelf
Size170.2 KB
First Seen2024-11-01
File Name857782e2257c91701d7c24660b01806d643c6241
TagsBlackBasta, elf, Ransomware

Malware Family: BlackBasta

Black Basta, Conti üyeleriyle ilişkilidir.

TypeRansomware
Programming LanguageC++
Target PlatformWindows/Linux
C2 Protocol
PurposeConti türevi ransomware
First Seen Year2022

Threat Indicators (IOC)

  • SHA256: a8894d8a71082d2a2d8799129eada9db0b280fce75945f4323e230ec26ec28d0
  • MD5: 61096cf4b3a039051c57903e82da173c

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule BlackBasta_SHA256 {
    meta:
        description = "BlackBasta sample: a8894d8a71082d2a"
        threat_level = "critical"
        first_seen = "2024-11-01"
    condition:
        hash.sha256(0, filesize) == "a8894d8a71082d2a2d8799129eada9db0b280fce75945f4323e230ec26ec28d0"
}

BlackBasta — Malware Profile

Black Basta ransomware grubu loaer/dropper. Microsoft Office Setup Engine (ose.pdb) olarak gizlenir. Global\OfficeSourceEngine64Mutex sahte mutex. Self-modifying .ex_cod section. Minimal import + runtime GetProcAddress API cozme. WinHttp C2. Token manipulasyonu.

Malware Type
Ransomware
Programming Language
C++
C2 Protocol
Target Systems
Windows/Linux

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — BlackBasta
# SHA256 a8894d8a71082d2a2d8799129eada9db0b280fce75945f4323e230ec26ec28d0 # MD5 61096cf4b3a039051c57903e82da173c
TypeValueNote
sha256 a8894d8a71082d2a2d8799129eada9db0b280fce75945f4323e230ec26ec28d0 Sample:BlackBasta
md5 61096cf4b3a039051c57903e82da173c Sample:BlackBasta

C2 Servers (1 recorded servers for this family)

Address Type Port Protocol Status Country
aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion domain 443 — inactive —

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
blackbastaransomwaremalwarecriticalsha256hash-analizi