AsyncRAT — 21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf.vbs [21d540bd]

Manuel Statik Analiz — AsyncRAT | Tehdit: YÜKSEK | CVSS: 7.5

Dosya Kimliği

SHA256	`21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf`
MD5	`f5bc414e0201d56967a4380524e6c6ec`
Dosya Adı	21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf.vbs
Boyut	790 byte (0 KB)
Tür	ASCII text, with CRLF line terminators
String Sayısı	11

IOC

SHA256	`21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf`
MD5	`f5bc414e0201d56967a4380524e6c6ec`
Domain	`githubusercontent.com`
PDB/Yol	`C:\Users\Public\Downloads\config.data` `C:\Users\Public\Downloads\installer.exe`
C2 Aday	`githubusercontent.com`

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 (5 indicators)

IOC — AsyncRAT

# SHA256
21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf

# MD5
f5bc414e0201d56967a4380524e6c6ec

# DOMAIN
githubusercontent.com 

# FILEPATH
C:\Users\Public\Downloads\config.data 

# FILEPATH
C:\Users\Public\Downloads\installer.exe

Type	Value	Note
sha256	21d540bd2d78b44c60915f81f42490dad986b557b287a2b81c38ce1f04c1afaf
md5	f5bc414e0201d56967a4380524e6c6ec
domain	githubusercontent.com	C2 domain
filepath	C:\Users\Public\Downloads\config.data	PDB
filepath	C:\Users\Public\Downloads\installer.exe	PDB

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.