GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2569c1ac77f687ad2bfe197e4a8f2b969d7caf4f8ddb707177b9461d7e74879ae33
MD5cd5866f5118ae8712ad9cc66fba3df4f
File Typeexe
Size126.8 KB
First Seen2023-03-24
File Name9c1ac77f687ad2bfe197e4a8f2b969d7caf4f8ddb707177b9461d7e74879ae33
TagsGandcrab, Ransomware

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: 9c1ac77f687ad2bfe197e4a8f2b969d7caf4f8ddb707177b9461d7e74879ae33
  • MD5: cd5866f5118ae8712ad9cc66fba3df4f

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: 9c1ac77f687ad2bf"
        threat_level = "critical"
        first_seen = "2023-03-24"
    condition:
        hash.sha256(0, filesize) == "9c1ac77f687ad2bfe197e4a8f2b969d7caf4f8ddb707177b9461d7e74879ae33"
}

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 9c1ac77f687ad2bfe197e4a8f2b969d7caf4f8ddb707177b9461d7e74879ae33 # MD5 cd5866f5118ae8712ad9cc66fba3df4f
TypeValueNote
sha256 9c1ac77f687ad2bfe197e4a8f2b969d7caf4f8ddb707177b9461d7e74879ae33 Sample:GandCrab
md5 cd5866f5118ae8712ad9cc66fba3df4f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi