Analysis

  • max time kernel
    139s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/05/2024, 07:19

General

  • Target
    d40cd8c0f0f48f86762a3b99bec0d96a.PDF.exe
  • Size 76KB
  • Sample240521-h5rf2sch3y
  • SHA256 a6cda94d44fe7bac7bc6dd2e62e15f355afe097d4f983dd56de7ebb3209c6ed9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d40cd8c0f0f48f86762a3b99bec0d96a.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\d40cd8c0f0f48f86762a3b99bec0d96a.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1304

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1304-7-0x0000000005DB0000-0x0000000006354000-memory.dmp

        memory/1304-3-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/1304-6-0x0000000074A90000-0x0000000075240000-memory.dmp

        memory/1304-8-0x0000000074A90000-0x0000000075240000-memory.dmp

        memory/1304-9-0x0000000005900000-0x0000000005966000-memory.dmp

        memory/1304-10-0x0000000006D30000-0x0000000006D80000-memory.dmp

        memory/1304-11-0x0000000006E20000-0x0000000006EB2000-memory.dmp

        memory/1304-12-0x0000000006DA0000-0x0000000006DAA000-memory.dmp

        memory/1304-13-0x0000000074A90000-0x0000000075240000-memory.dmp

        memory/2724-1-0x00000000006C0000-0x00000000006D8000-memory.dmp

        memory/2724-2-0x0000000074A90000-0x0000000075240000-memory.dmp

        memory/2724-5-0x0000000074A90000-0x0000000075240000-memory.dmp

        memory/2724-0-0x0000000074A9E000-0x0000000074A9F000-memory.dmp