GootLoader | Threat Level: high | Type: Loader

Cryptographic Identifiers

SHA2569a1ab28d64f59306aa01870cd102da0f64000c6765ac0de21f723c03f1bd2847
MD5116450624f1419a185fccbc34deb15bc
File Typezip
Size33.8 KB
First Seen2022-11-16
File NameThai prenuptial agreement (4201).zip
TagsGootkit, GootLoader, js, zip

Malware Family: GootLoader

GootLoader, SEO loader'dır.

TypeLoader
Programming LanguageJavaScript
Target PlatformWindows
C2 ProtocolHTTPS
PurposeSEO loader
First Seen Year2020
AliasesGootKit

Threat Indicators (IOC)

  • SHA256: 9a1ab28d64f59306aa01870cd102da0f64000c6765ac0de21f723c03f1bd2847
  • MD5: 116450624f1419a185fccbc34deb15bc

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network — the loader may be downloading more malware
  2. Analyze every downloaded payload
  3. Inspect all network traffic and cut suspicious connections
  4. Run a full antivirus scan
  5. Consider reimaging the system

YARA Rule Hints

rule GootLoader_SHA256 {
    meta:
        description = "GootLoader sample: 9a1ab28d64f59306"
        threat_level = "high"
        first_seen = "2022-11-16"
    condition:
        hash.sha256(0, filesize) == "9a1ab28d64f59306aa01870cd102da0f64000c6765ac0de21f723c03f1bd2847"
}

Gootloader — Malware Profile

GootLoader/GootKit v3 JavaScript loader. SEO zehirleme kampanyasi. Hukuki belge lurü. JScript dropper.

Malware Type
Loader
Programming Language
JavaScript
C2 Protocol
HTTPS
Target Systems
Windows
Also Known As (AKA)
GootKit

Technical Details

Varyanta gore C/C#/VBS/PS1, anti-analysis (VM/debugger check), persistence (Registry/Task Scheduler/Startup folder), payload decryption ve injection (shellcode/PE), fileless execution teknikleri

Capabilities & Behavior

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC List (2 indicators)

IOC — GootLoader
# SHA256 9a1ab28d64f59306aa01870cd102da0f64000c6765ac0de21f723c03f1bd2847 # MD5 116450624f1419a185fccbc34deb15bc
TypeValueNote
sha256 9a1ab28d64f59306aa01870cd102da0f64000c6765ac0de21f723c03f1bd2847 Sample:GootLoader
md5 116450624f1419a185fccbc34deb15bc Sample:GootLoader

C2 Servers (3 recorded servers for this family)

Address Type Port Protocol Status Country
23.227.203.68 ip 443 HTTPS active US
216.122.229.106 ip 443 HTTPS inactive US
login.itwrx.com domain 443 HTTPS inactive US

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
gootloaderloadermalwarehighsha256hash-analizi