GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f654594a8e5227ad4b725152445f5da3af504630d417b9d2e020bfee20ff854b
MD5b471e90960ecb2a80975526a5207aff0
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Namef654594a8e5227ad4b725152445f5da3af504630d417b9d2e020bfee20ff854b
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: f654594a8e5227ad4b725152445f5da3af504630d417b9d2e020bfee20ff854b
  • MD5: b471e90960ecb2a80975526a5207aff0

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: f654594a8e5227ad"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "f654594a8e5227ad4b725152445f5da3af504630d417b9d2e020bfee20ff854b"
}

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 f654594a8e5227ad4b725152445f5da3af504630d417b9d2e020bfee20ff854b # MD5 b471e90960ecb2a80975526a5207aff0
TypeValueNote
sha256 f654594a8e5227ad4b725152445f5da3af504630d417b9d2e020bfee20ff854b Sample:GandCrab
md5 b471e90960ecb2a80975526a5207aff0 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi