BlackBasta | Threat Level: critical | Type: Ransomware
Cryptographic Identifiers
| SHA256 | 65ca7ba84aab380f567de480f63624c3443c26b0df33d8b4869132c6640bcec3 |
|---|---|
| MD5 | 42105d5623e424551f895a18bf7c73ee |
| File Type | exe |
| Size | 477.2 KB |
| First Seen | 2025-06-27 |
| File Name | black-basta_elex.exe |
| Tags | agent, BlackBasta, Cosmu, exe, trojan, Zusy |
Malware Family: BlackBasta
Black Basta, Conti üyeleriyle ilişkilidir.
| Type | Ransomware |
|---|---|
| Programming Language | C++ |
| Target Platform | Windows/Linux |
| C2 Protocol | — |
| Purpose | Conti türevi ransomware |
| First Seen Year | 2022 |
Threat Indicators (IOC)
- SHA256:
65ca7ba84aab380f567de480f63624c3443c26b0df33d8b4869132c6640bcec3 - MD5:
42105d5623e424551f895a18bf7c73ee
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- Do not pay the ransom — there is no guarantee your files will be restored
- Quarantine the affected drives
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- Try available decryptor tools (the NoMoreRansom project)
- Report the incident to the authorities (cybercrime unit)
- Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın
YARA Rule Hints
rule BlackBasta_SHA256 {
meta:
description = "BlackBasta sample: 65ca7ba84aab380f"
threat_level = "critical"
first_seen = "2025-06-27"
condition:
hash.sha256(0, filesize) == "65ca7ba84aab380f567de480f63624c3443c26b0df33d8b4869132c6640bcec3"
}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
65ca7ba84aab380f567de480f63624c3443c26b0df33d8b4869132c6640bcec3
# MD5
42105d5623e424551f895a18bf7c73ee
| Type | Value | Note |
|---|---|---|
| sha256 | 65ca7ba84aab380f567de480f63624c3443c26b0df33d8b4869132c6640bcec3 | Sample:BlackBasta |
| md5 | 42105d5623e424551f895a18bf7c73ee | 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.