GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25683524d7c2c286df440150737cdb10029c05d190de51d518995bc367a05f75ea2
MD5a22cae88ad604db02e810fd8ceb83302
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name83524d7c2c286df440150737cdb10029c05d190de51d518995bc367a05f75ea2
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 83524d7c2c286df440150737cdb10029c05d190de51d518995bc367a05f75ea2
  • MD5: a22cae88ad604db02e810fd8ceb83302

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: 83524d7c2c286df4"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "83524d7c2c286df440150737cdb10029c05d190de51d518995bc367a05f75ea2"
}

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 83524d7c2c286df440150737cdb10029c05d190de51d518995bc367a05f75ea2 # MD5 a22cae88ad604db02e810fd8ceb83302
TypeValueNote
sha256 83524d7c2c286df440150737cdb10029c05d190de51d518995bc367a05f75ea2 Sample:GandCrab
md5 a22cae88ad604db02e810fd8ceb83302 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi