GootLoader | Threat Level: high | Type: Loader
Cryptographic Identifiers
| SHA256 | f4fcdd2bb8f59b4d9a4a613f6859df4a253e771a34a02405b989d17754ecb0e0 |
|---|---|
| MD5 | a1ee6705e0e1fee56b06985494512c4a |
| File Type | zip |
| Size | 37.4 KB |
| First Seen | 2022-11-16 |
| File Name | Aia construction management agreement (61688).zip |
| Tags | Gootkit, GootLoader, js, zip |
Malware Family: GootLoader
GootLoader, SEO loader'dır.
| Type | Loader |
|---|---|
| Programming Language | JavaScript |
| Target Platform | Windows |
| C2 Protocol | HTTPS |
| Purpose | SEO loader |
| First Seen Year | 2020 |
| Aliases | GootKit |
Threat Indicators (IOC)
- SHA256:
f4fcdd2bb8f59b4d9a4a613f6859df4a253e771a34a02405b989d17754ecb0e0 - MD5:
a1ee6705e0e1fee56b06985494512c4a
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Disconnect the system from the network — the loader may be downloading more malware
- Analyze every downloaded payload
- Inspect all network traffic and cut suspicious connections
- Run a full antivirus scan
- Consider reimaging the system
YARA Rule Hints
rule GootLoader_SHA256 {
meta:
description = "GootLoader sample: f4fcdd2bb8f59b4d"
threat_level = "high"
first_seen = "2022-11-16"
condition:
hash.sha256(0, filesize) == "f4fcdd2bb8f59b4d9a4a613f6859df4a253e771a34a02405b989d17754ecb0e0"
}
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
f4fcdd2bb8f59b4d9a4a613f6859df4a253e771a34a02405b989d17754ecb0e0
# MD5
a1ee6705e0e1fee56b06985494512c4a
| Type | Value | Note |
|---|---|---|
| sha256 | f4fcdd2bb8f59b4d9a4a613f6859df4a253e771a34a02405b989d17754ecb0e0 | Sample:GootLoader |
| md5 | a1ee6705e0e1fee56b06985494512c4a | 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.