BlackBasta | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25605ebae760340fe44362ab7c8f70b2d89d6c9ba9b9ee8a9f747b2f19d326c3431
MD5f74cec233a9609461e7518dd4c90207b
File Typedll
Size800.0 KB
First Seen2024-10-27
File Name05ebae760340fe44362ab7c8f70b2d89d6c9ba9b9ee8a9f747b2f19d326c3431
TagsBlackBasta, dll

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: 05ebae760340fe44362ab7c8f70b2d89d6c9ba9b9ee8a9f747b2f19d326c3431
  • MD5: f74cec233a9609461e7518dd4c90207b

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: 05ebae760340fe44"
        threat_level = "critical"
        first_seen = "2024-10-27"
    condition:
        hash.sha256(0, filesize) == "05ebae760340fe44362ab7c8f70b2d89d6c9ba9b9ee8a9f747b2f19d326c3431"
}

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 05ebae760340fe44362ab7c8f70b2d89d6c9ba9b9ee8a9f747b2f19d326c3431 # MD5 f74cec233a9609461e7518dd4c90207b
TypeValueNote
sha256 05ebae760340fe44362ab7c8f70b2d89d6c9ba9b9ee8a9f747b2f19d326c3431 Sample:BlackBasta
md5 f74cec233a9609461e7518dd4c90207b 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