GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a870221836a67ab76d58f4f36d94e513c4ee7dd5b2e445decd930151f65934a4
MD5f0cdc15c9612750e7048e56f2dcd4867
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namea870221836a67ab76d58f4f36d94e513c4ee7dd5b2e445decd930151f65934a4
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a870221836a67ab76d58f4f36d94e513c4ee7dd5b2e445decd930151f65934a4
  • MD5: f0cdc15c9612750e7048e56f2dcd4867

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: a870221836a67ab7"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a870221836a67ab76d58f4f36d94e513c4ee7dd5b2e445decd930151f65934a4"
}

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 a870221836a67ab76d58f4f36d94e513c4ee7dd5b2e445decd930151f65934a4 # MD5 f0cdc15c9612750e7048e56f2dcd4867
TypeValueNote
sha256 a870221836a67ab76d58f4f36d94e513c4ee7dd5b2e445decd930151f65934a4 Sample:GandCrab
md5 f0cdc15c9612750e7048e56f2dcd4867 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi