GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256781fa24dbcaa51019d59df4c611fd4d3806d5bbaef72bf93865b96c5c26ebadc
MD5eab92e815aa9b83c6fbe2473874b2edd
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name781fa24dbcaa51019d59df4c611fd4d3806d5bbaef72bf93865b96c5c26ebadc
Tagsexe, Gandcrab

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: 781fa24dbcaa51019d59df4c611fd4d3806d5bbaef72bf93865b96c5c26ebadc
  • MD5: eab92e815aa9b83c6fbe2473874b2edd

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: 781fa24dbcaa5101"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "781fa24dbcaa51019d59df4c611fd4d3806d5bbaef72bf93865b96c5c26ebadc"
}

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 781fa24dbcaa51019d59df4c611fd4d3806d5bbaef72bf93865b96c5c26ebadc # MD5 eab92e815aa9b83c6fbe2473874b2edd
TypeValueNote
sha256 781fa24dbcaa51019d59df4c611fd4d3806d5bbaef72bf93865b96c5c26ebadc Sample:GandCrab
md5 eab92e815aa9b83c6fbe2473874b2edd Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi