GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a20b5bac670b87024c320dd83bdfc2156c513f9f8256a2cfe3262b51ab6a5043
MD5dd1dfb7227dc828f687377c007b67c2f
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Namea20b5bac670b87024c320dd83bdfc2156c513f9f8256a2cfe3262b51ab6a5043
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a20b5bac670b87024c320dd83bdfc2156c513f9f8256a2cfe3262b51ab6a5043
  • MD5: dd1dfb7227dc828f687377c007b67c2f

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: a20b5bac670b8702"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a20b5bac670b87024c320dd83bdfc2156c513f9f8256a2cfe3262b51ab6a5043"
}

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 a20b5bac670b87024c320dd83bdfc2156c513f9f8256a2cfe3262b51ab6a5043 # MD5 dd1dfb7227dc828f687377c007b67c2f
TypeValueNote
sha256 a20b5bac670b87024c320dd83bdfc2156c513f9f8256a2cfe3262b51ab6a5043 Sample:GandCrab
md5 dd1dfb7227dc828f687377c007b67c2f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi