BlackBasta | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2569a55f55886285eef7ffabdd55c0232d1458175b1d868c03d3e304ce7d98980bc
MD5c115bbbdb1a61f8c553d74802bfd78fb
File Typeexe
Size542.5 KB
First Seen2022-10-07
File Name9a55f55886285eef7ffabdd55c0232d1458175b1d868c03d3e304ce7d98980bc
TagsBlackBasta, exe, 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: 9a55f55886285eef7ffabdd55c0232d1458175b1d868c03d3e304ce7d98980bc
  • MD5: c115bbbdb1a61f8c553d74802bfd78fb

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: 9a55f55886285eef"
        threat_level = "critical"
        first_seen = "2022-10-07"
    condition:
        hash.sha256(0, filesize) == "9a55f55886285eef7ffabdd55c0232d1458175b1d868c03d3e304ce7d98980bc"
}

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 9a55f55886285eef7ffabdd55c0232d1458175b1d868c03d3e304ce7d98980bc # MD5 c115bbbdb1a61f8c553d74802bfd78fb
TypeValueNote
sha256 9a55f55886285eef7ffabdd55c0232d1458175b1d868c03d3e304ce7d98980bc Sample:BlackBasta
md5 c115bbbdb1a61f8c553d74802bfd78fb 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