GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f955035242ffa9bde3904e1c51b491ba81b76e16e912c5ed292efcaf55b04c1b
MD52e0d33ba5dbfa8eccdcbddc0bc3b3390
File Typeexe
Size155.5 KB
First Seen2023-08-22
File Name2023-08-22_2e0d33ba5dbfa8eccdcbddc0bc3b3390_gandcrab
TagsGandcrab

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: f955035242ffa9bde3904e1c51b491ba81b76e16e912c5ed292efcaf55b04c1b
  • MD5: 2e0d33ba5dbfa8eccdcbddc0bc3b3390

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: f955035242ffa9bd"
        threat_level = "critical"
        first_seen = "2023-08-22"
    condition:
        hash.sha256(0, filesize) == "f955035242ffa9bde3904e1c51b491ba81b76e16e912c5ed292efcaf55b04c1b"
}

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 f955035242ffa9bde3904e1c51b491ba81b76e16e912c5ed292efcaf55b04c1b # MD5 2e0d33ba5dbfa8eccdcbddc0bc3b3390
TypeValueNote
sha256 f955035242ffa9bde3904e1c51b491ba81b76e16e912c5ed292efcaf55b04c1b Sample:GandCrab
md5 2e0d33ba5dbfa8eccdcbddc0bc3b3390 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi