GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2560a1ac81f5d0dbb0b63a8fba9ade1f62b61e77c8fbafec1e17a2b346329e06893
MD51a23c3c699f0f29197813703f1feae0f
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name0a1ac81f5d0dbb0b63a8fba9ade1f62b61e77c8fbafec1e17a2b346329e06893
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeMaaS ransomware
First Seen Year2018

Threat Indicators (IOC)

  • SHA256: 0a1ac81f5d0dbb0b63a8fba9ade1f62b61e77c8fbafec1e17a2b346329e06893
  • MD5: 1a23c3c699f0f29197813703f1feae0f

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 GandCrab_SHA256 {
    meta:
        description = "GandCrab sample: 0a1ac81f5d0dbb0b"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "0a1ac81f5d0dbb0b63a8fba9ade1f62b61e77c8fbafec1e17a2b346329e06893"
}

GandCrab — Malware Profile

GandCrab, 2018-2019 aktif RaaS ailesidir. 1.5 milyar USD hasar. RSA+Salsa20. Haziran 2019 kapandi. REvil oncusu.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows

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 — GandCrab
# SHA256 0a1ac81f5d0dbb0b63a8fba9ade1f62b61e77c8fbafec1e17a2b346329e06893 # MD5 1a23c3c699f0f29197813703f1feae0f
TypeValueNote
sha256 0a1ac81f5d0dbb0b63a8fba9ade1f62b61e77c8fbafec1e17a2b346329e06893 Sample:GandCrab
md5 1a23c3c699f0f29197813703f1feae0f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi