GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a856bd012a42b2e85a63a299bf064fa1daa26e22dd36db3a3832afbd8f618f78
MD5dd1087bff6ed3cec58d2774dc2e21af4
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namea856bd012a42b2e85a63a299bf064fa1daa26e22dd36db3a3832afbd8f618f78
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a856bd012a42b2e85a63a299bf064fa1daa26e22dd36db3a3832afbd8f618f78
  • MD5: dd1087bff6ed3cec58d2774dc2e21af4

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: a856bd012a42b2e8"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a856bd012a42b2e85a63a299bf064fa1daa26e22dd36db3a3832afbd8f618f78"
}

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 a856bd012a42b2e85a63a299bf064fa1daa26e22dd36db3a3832afbd8f618f78 # MD5 dd1087bff6ed3cec58d2774dc2e21af4
TypeValueNote
sha256 a856bd012a42b2e85a63a299bf064fa1daa26e22dd36db3a3832afbd8f618f78 Sample:GandCrab
md5 dd1087bff6ed3cec58d2774dc2e21af4 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi