AsyncRAT — Deep Static Analysis (40f84ae7) | Critical Tehdit

Derin Statik Analiz — AsyncRAT | Tehdit: critical

Dosya Kimliği

SHA256	`40f84ae721a13a383e13d18ba0d4cd120db5fe61fae4eefc117347fa6d1a4352`
MD5	`cc5eef48d8137eef70410515ae974aea`
SHA1	`9a297bdf2e2014743cc76739b71af175e27a9a66`
Dosya Adı	SGH09876545678XW.js
Boyut	312699 byte
Tür	/opt/ksentinel/samples/40f84ae721a13a38_SGH09876545678XW.js: ASCII text, with very long lines (65536
Derleme Tarihi	Bilinmiyor
Packer	UPX

Ağ IOC'u tespit edilemedi (obfuscated/encrypted config).

Yetenekler

Şifreleme: # Secure Decryption Module - AES-256 CBC Mode

Base64 Decode:

B64:DQojIFNlY3VyZSBEZWNyeXB0aW9uIE1vZHVsZSAtIEFFUy0yNTYgQ0JDIE1vZGUNCiMgPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09DQoNCiMgRW5jcnlwdGVkIFBheWxvYWQgKEJhc2U2NCBlbmNvZGVkKQ0KJHBheWxvYWQg

Geliştirici İpuçları

Geliştirici ipucu bulunamadı.

PE Analizi

PE analizi mevcut değil.

Aile Tespiti — String Kanıtı

String kanıtı bulunamadı (obfuscated).

AsyncRAT — Malware Profile

AsyncRAT, 2019'da acik kaynak olarak yayimlanan C# tabanli RAT ailesidir. Ekran yakalama, keylogger, dosya islemleri, HVNC ve plugin sistemine sahiptir. C2 AES-128-CBC ile sifrelenir, TCP uzerinden calisir. JS/PDF yemi ile dagitilir.

Malware Type

RAT

Programming Language

.NET C#

C2 Protocol

TCP/SSL

Target Systems

Windows

Also Known As (AKA)

AsyncClient

Technical Details

C# .NET, AES-128-CBC sifreleme, TCP port 6606/4449 (varsayilan), Mutex kontrol, Runtime assembly loading, Anti-analysis (VM check, Process listesi), HVNC, Keylogger, Stealer, Botnet modulu

Attribution / Threat Actor

Acik kaynak - orjinal gelistirici GitHub'da yayinladi; surekli siber suclu toplulugu tarafindan kullanilmaktadir. APT operasyonlari da dahil olmak uzere cok sayida farkli tehdit aktoru kullanmaktadir.

Capabilities & Behavior

Uzaktan Erişim & Kontrol

Keylogger

Ekran Görüntüsü

Webcam Erişimi

Dosya Yönetimi

Süreç Yönetimi

Komut Yürütme

Kalıcılık Mekanizması

IOC List (8 indicators)

IOC — AsyncRAT

# 
9a297bdf2e2014743cc76739b71af175e27a9a66

# 
9a297bdf2e2014743cc76739b71af175e27a9a66

# SHA256
40f84ae721a13a383e13d18ba0d4cd120db5fe61fae4eefc117347fa6d1a4352

# SHA256
40f84ae721a13a383e13d18ba0d4cd120db5fe61fae4eefc117347fa6d1a4352

# MD5
cc5eef48d8137eef70410515ae974aea

# MD5
cc5eef48d8137eef70410515ae974aea

# FILEPATH
C:\x5cTemp

# FILEPATH
C:\x5cTemp

Type	Value	Note
	9a297bdf2e2014743cc76739b71af175e27a9a66
	9a297bdf2e2014743cc76739b71af175e27a9a66
sha256	40f84ae721a13a383e13d18ba0d4cd120db5fe61fae4eefc117347fa6d1a4352
sha256	40f84ae721a13a383e13d18ba0d4cd120db5fe61fae4eefc117347fa6d1a4352
md5	cc5eef48d8137eef70410515ae974aea
md5	cc5eef48d8137eef70410515ae974aea
filepath	C:\x5cTemp
filepath	C:\x5cTemp

AsyncRAT — Go to Full Profile →

C2 Servers (8 recorded servers for this family)

Address	Type	Port	Protocol	Status	Country
system.io	domain	—	TCP	active	—
system.io	domain	—	TCP	active	—
microsoft.com	domain	—	TCP	active	—
microsoft.com	domain	—	TCP	active	—
system.io	domain	—	TCP	active	—
system.io	domain	—	TCP	active	—
microsoft.com	domain	—	TCP	active	—
microsoft.com	domain	—	TCP	active	—

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