GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25625c85c3d64659a0018a16417a0c60328e173f7158984c9c02a2c800f5bf8d94d
MD5a54f90673e0e82474b70aff2adcf8fe2
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name25c85c3d64659a0018a16417a0c60328e173f7158984c9c02a2c800f5bf8d94d
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 25c85c3d64659a0018a16417a0c60328e173f7158984c9c02a2c800f5bf8d94d
  • MD5: a54f90673e0e82474b70aff2adcf8fe2

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: 25c85c3d64659a00"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "25c85c3d64659a0018a16417a0c60328e173f7158984c9c02a2c800f5bf8d94d"
}

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 25c85c3d64659a0018a16417a0c60328e173f7158984c9c02a2c800f5bf8d94d # MD5 a54f90673e0e82474b70aff2adcf8fe2
TypeValueNote
sha256 25c85c3d64659a0018a16417a0c60328e173f7158984c9c02a2c800f5bf8d94d Sample:GandCrab
md5 a54f90673e0e82474b70aff2adcf8fe2 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi