GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256c34f83f7588c4e25d19c453efe6403139c0afb33487ae5d5ddbe624da4c048e7
MD5893b37b1ac05d966b530e6eb1fa076b3
File Typeexe
Size92.8 KB
First Seen2022-08-30
File Namec34f83f7588c4e25d19c453efe6403139c0afb33487ae5d5ddbe624da4c048e7
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: c34f83f7588c4e25d19c453efe6403139c0afb33487ae5d5ddbe624da4c048e7
  • MD5: 893b37b1ac05d966b530e6eb1fa076b3

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: c34f83f7588c4e25"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "c34f83f7588c4e25d19c453efe6403139c0afb33487ae5d5ddbe624da4c048e7"
}

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 c34f83f7588c4e25d19c453efe6403139c0afb33487ae5d5ddbe624da4c048e7 # MD5 893b37b1ac05d966b530e6eb1fa076b3
TypeValueNote
sha256 c34f83f7588c4e25d19c453efe6403139c0afb33487ae5d5ddbe624da4c048e7 Sample:GandCrab
md5 893b37b1ac05d966b530e6eb1fa076b3 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi