AgentTesla | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA256b4bafbf0941c2de77dc3e162cbdc9ef67bab680534805d988ddb57a16e933bba
MD526ff44fb85e202b60b31012e38167d3c
File Typejs
Size3532.7 KB
First Seen2026-06-15
File NamePayment Advice.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: b4bafbf0941c2de77dc3e162cbdc9ef67bab680534805d988ddb57a16e933bba
  • MD5: 26ff44fb85e202b60b31012e38167d3c

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: b4bafbf0941c2de7"
        threat_level = "high"
        first_seen = "2026-06-15"
    condition:
        hash.sha256(0, filesize) == "b4bafbf0941c2de77dc3e162cbdc9ef67bab680534805d988ddb57a16e933bba"
}

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 b4bafbf0941c2de77dc3e162cbdc9ef67bab680534805d988ddb57a16e933bba # MD5 26ff44fb85e202b60b31012e38167d3c
TypeValueNote
sha256 b4bafbf0941c2de77dc3e162cbdc9ef67bab680534805d988ddb57a16e933bba Sample:AgentTesla
md5 26ff44fb85e202b60b31012e38167d3c 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