GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ba4f883a52da6ed5f115c9562eb544fdeb4762175d96da5030eaad37bdb3a636
MD54f340cdfddc8e52357113f93f763b85b
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Nameba4f883a52da6ed5f115c9562eb544fdeb4762175d96da5030eaad37bdb3a636
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: ba4f883a52da6ed5f115c9562eb544fdeb4762175d96da5030eaad37bdb3a636
  • MD5: 4f340cdfddc8e52357113f93f763b85b

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: ba4f883a52da6ed5"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "ba4f883a52da6ed5f115c9562eb544fdeb4762175d96da5030eaad37bdb3a636"
}

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 ba4f883a52da6ed5f115c9562eb544fdeb4762175d96da5030eaad37bdb3a636 # MD5 4f340cdfddc8e52357113f93f763b85b
TypeValueNote
sha256 ba4f883a52da6ed5f115c9562eb544fdeb4762175d96da5030eaad37bdb3a636 Sample:GandCrab
md5 4f340cdfddc8e52357113f93f763b85b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi