GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256efa01ea7bd420a0a08b3e45b98cb8edeb8af9316955e930ec8fde22a4b1b2cdd
MD5cc69664d26b804acabc7e1c57d5ab7b4
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Nameefa01ea7bd420a0a08b3e45b98cb8edeb8af9316955e930ec8fde22a4b1b2cdd
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: efa01ea7bd420a0a08b3e45b98cb8edeb8af9316955e930ec8fde22a4b1b2cdd
  • MD5: cc69664d26b804acabc7e1c57d5ab7b4

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: efa01ea7bd420a0a"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "efa01ea7bd420a0a08b3e45b98cb8edeb8af9316955e930ec8fde22a4b1b2cdd"
}

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 efa01ea7bd420a0a08b3e45b98cb8edeb8af9316955e930ec8fde22a4b1b2cdd # MD5 cc69664d26b804acabc7e1c57d5ab7b4
TypeValueNote
sha256 efa01ea7bd420a0a08b3e45b98cb8edeb8af9316955e930ec8fde22a4b1b2cdd Sample:GandCrab
md5 cc69664d26b804acabc7e1c57d5ab7b4 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi