Analysis

  • max time kernel
    118s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2023 15:18

General

  • Target

    Confirmacao de conta.exe

  • Size

    841KB

  • MD5

    c0faf71f9d3d14e79bec6769860b564f

  • SHA1

    2f11711bf5b4aa115d160e022b14cd1e91570737

  • SHA256

    692469e7237af7cf1c4d4b9d7abcbd5064732f6318ed91c21bd11e8f8adce3c4

  • SHA512

    63b1c4c1767fd23f18fb06f86bdd885861dfb63359cc890fe0b9aabbab67189400d676d325bddbdbb48010ca8650fdb83fe81656c07eb65dd8f0c55e2ca38764

  • SSDEEP

    24576:IyT/7fbYvQed+5d5o57m9KuDa/MFEbma:IyTjfbYvk5/o57mk0wma

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2616
    • C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe
      "C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe"
      2⤵
        PID:2776
      • C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe
        "C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2616-0-0x0000000000070000-0x0000000000148000-memory.dmp

      Filesize

      864KB

    • memory/2616-1-0x0000000074930000-0x000000007501E000-memory.dmp

      Filesize

      6.9MB

    • memory/2616-2-0x0000000004E60000-0x0000000004EA0000-memory.dmp

      Filesize

      256KB

    • memory/2616-3-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/2616-4-0x00000000005C0000-0x00000000005C8000-memory.dmp

      Filesize

      32KB

    • memory/2616-5-0x00000000005D0000-0x00000000005DA000-memory.dmp

      Filesize

      40KB

    • memory/2616-6-0x0000000004FA0000-0x000000000503C000-memory.dmp

      Filesize

      624KB

    • memory/2616-7-0x0000000074930000-0x000000007501E000-memory.dmp

      Filesize

      6.9MB

    • memory/2616-8-0x0000000004E60000-0x0000000004EA0000-memory.dmp

      Filesize

      256KB

    • memory/2616-22-0x0000000074930000-0x000000007501E000-memory.dmp

      Filesize

      6.9MB

    • memory/2800-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2800-13-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2800-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2800-14-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2800-17-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2800-19-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2800-9-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2800-21-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2800-23-0x0000000074930000-0x000000007501E000-memory.dmp

      Filesize

      6.9MB

    • memory/2800-24-0x00000000046B0000-0x00000000046F0000-memory.dmp

      Filesize

      256KB

    • memory/2800-25-0x0000000074930000-0x000000007501E000-memory.dmp

      Filesize

      6.9MB

    • memory/2800-26-0x00000000046B0000-0x00000000046F0000-memory.dmp

      Filesize

      256KB