GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25659491e38de77f8825b41799af3f72e0f102fb84e4a74840fcb5e0f2cd140b34c
MD5afda5690ce87c95a6d6fa6968229c538
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name59491e38de77f8825b41799af3f72e0f102fb84e4a74840fcb5e0f2cd140b34c
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 59491e38de77f8825b41799af3f72e0f102fb84e4a74840fcb5e0f2cd140b34c
  • MD5: afda5690ce87c95a6d6fa6968229c538

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: 59491e38de77f882"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "59491e38de77f8825b41799af3f72e0f102fb84e4a74840fcb5e0f2cd140b34c"
}

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 59491e38de77f8825b41799af3f72e0f102fb84e4a74840fcb5e0f2cd140b34c # MD5 afda5690ce87c95a6d6fa6968229c538
TypeValueNote
sha256 59491e38de77f8825b41799af3f72e0f102fb84e4a74840fcb5e0f2cd140b34c Sample:GandCrab
md5 afda5690ce87c95a6d6fa6968229c538 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi