GootLoader | Threat Level: high | Type: Loader
Cryptographic Identifiers
| SHA256 | a2c0b0f8029e88ca6b62b1777e5cc11ebb43dfb41c716090f5d3428b37ebb6a6 |
|---|---|
| MD5 | 783ff355a664456268d21eb7834fa8d2 |
| File Type | zip |
| Size | 36.9 KB |
| First Seen | 2022-11-16 |
| File Name | Supplemental agreement pa workers compensation (95544).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:
a2c0b0f8029e88ca6b62b1777e5cc11ebb43dfb41c716090f5d3428b37ebb6a6 - MD5:
783ff355a664456268d21eb7834fa8d2
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: a2c0b0f8029e88ca"
threat_level = "high"
first_seen = "2022-11-16"
condition:
hash.sha256(0, filesize) == "a2c0b0f8029e88ca6b62b1777e5cc11ebb43dfb41c716090f5d3428b37ebb6a6"
}
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
a2c0b0f8029e88ca6b62b1777e5cc11ebb43dfb41c716090f5d3428b37ebb6a6
# MD5
783ff355a664456268d21eb7834fa8d2
| Type | Value | Note |
|---|---|---|
| sha256 | a2c0b0f8029e88ca6b62b1777e5cc11ebb43dfb41c716090f5d3428b37ebb6a6 | Sample:GootLoader |
| md5 | 783ff355a664456268d21eb7834fa8d2 | 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.