Analysis

  • max time kernel
    140s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2023, 14:55

General

  • Target
    ZCJ16630912 Payment.pdf.exe
  • Size 716KB
  • Sample231222-saffeaebhq
  • SHA256 08a1a9925dfe42290e12823fa21cb53cd879fa1895011d2cfa41d1edeb464795
  • 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 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ZCJ16630912 Payment.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\ZCJ16630912 Payment.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Users\Admin\AppData\Local\Temp\ZCJ16630912 Payment.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\ZCJ16630912 Payment.pdf.exe"
      2⤵
        PID:2808
      • C:\Users\Admin\AppData\Local\Temp\ZCJ16630912 Payment.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\ZCJ16630912 Payment.pdf.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2820

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2488-0-0x00000000000B0000-0x000000000016A000-memory.dmp

          memory/2488-1-0x0000000074710000-0x0000000074DFE000-memory.dmp

          memory/2488-2-0x0000000004D60000-0x0000000004DA0000-memory.dmp

          memory/2488-3-0x0000000000370000-0x0000000000384000-memory.dmp

          memory/2488-4-0x00000000003E0000-0x00000000003EA000-memory.dmp

          memory/2488-5-0x00000000003F0000-0x00000000003FE000-memory.dmp

          memory/2488-6-0x0000000004FD0000-0x000000000504C000-memory.dmp

          memory/2488-20-0x0000000074710000-0x0000000074DFE000-memory.dmp

          memory/2820-8-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2820-9-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2820-11-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          memory/2820-15-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2820-19-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2820-17-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2820-7-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2820-21-0x0000000074710000-0x0000000074DFE000-memory.dmp

          memory/2820-22-0x0000000004830000-0x0000000004870000-memory.dmp

          memory/2820-23-0x0000000074710000-0x0000000074DFE000-memory.dmp