AgentTesla | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA256bc73fe11955ff97c6eb8b3e5a85d02c5fd728103c046f85150b8e8d13c16c939
MD5fe09206aa3211320ee73002393c2b964
File Typejs
Size5706.2 KB
First Seen2026-06-01
File NamePB20251131-PO1.JS
TagsAgentTesla, js

Malware Family: AgentTesla

Agent Tesla, keylogger'dır.

TypeInfostealer
Programming Language.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeTuş kaydı, hırsızlık
First Seen Year2014
AliasesAgent Tesla

Threat Indicators (IOC)

  • SHA256: bc73fe11955ff97c6eb8b3e5a85d02c5fd728103c046f85150b8e8d13c16c939
  • MD5: fe09206aa3211320ee73002393c2b964

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

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule AgentTesla_SHA256 {
    meta:
        description = "AgentTesla sample: bc73fe11955ff97c"
        threat_level = "high"
        first_seen = "2026-06-01"
    condition:
        hash.sha256(0, filesize) == "bc73fe11955ff97c6eb8b3e5a85d02c5fd728103c046f85150b8e8d13c16c939"
}

AgentTesla — Malware Profile

AgentTesla .NET credential stealer. JS dropper @version 8.16.22. Sayısal obfuscation v6034. SMTP FTP HTTP C2.

Malware Type
Infostealer
Programming Language
.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows
Also Known As (AKA)
Agent Tesla

Technical Details

C#/.NET, SMTP/FTP/HTTP C2, GetAsyncKeyState keylogger, browser stealer (Chrome/Firefox/Edge), email client stealer, FTP stealer, VPN stealer, clipboard monitor, screenshot

Attribution / Threat Actor

Turkce konusulan gelistirici 'Turk Hack Team' ile iliskilendirilen ve Turkiye'den yonetildigi dusunulen platform. Pek cok farkli siber suc grubu musterisi bulunmaktadir.

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — AgentTesla
# SHA256 bc73fe11955ff97c6eb8b3e5a85d02c5fd728103c046f85150b8e8d13c16c939 # MD5 fe09206aa3211320ee73002393c2b964
TypeValueNote
sha256 bc73fe11955ff97c6eb8b3e5a85d02c5fd728103c046f85150b8e8d13c16c939 Sample:AgentTesla
md5 fe09206aa3211320ee73002393c2b964 Sample:AgentTesla

C2 Servers (8 recorded servers for this family)

Address Type Port Protocol Status Country
digicert.com domain — TCP active —
stem.ru domain — TCP active —
digicert.com domain — TCP active —
dublincore.org domain — TCP active —
googleapis.com domain — TCP active —
microsoft.com domain — TCP active —
freightfacilitators.com domain — TCP active —
digicert.com domain — TCP active —

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

Tags
agentteslainfostealermalwarehighsha256hash-analizi