Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    06-12-2023 17:31

General

  • Target

    INVOICE COPY.exe

  • Size

    650KB

  • MD5

    c64c2a89d124e9185d312b3f880b31d9

  • SHA1

    cb98b08b3954f8c596762a9d571006bc077612e0

  • SHA256

    8dd68257e8d07b2e0d25da886cdb7cb487085b99a469984369d486812596ea12

  • SHA512

    92c0be639e432691a58c220e015987f77755703c4f936480befd3c035ff4386ad20734a936d21921c3fc5bfa3cc4e1be6288756fc24e10147305621d34bbb472

  • SSDEEP

    12288:iq5nF8ME6jD/GYVZBzN0SeawOHlB+GrgetMtZeF3KKprWeb25LfYOghi:iqPtD/Gez03awaDrgeWtZeNr6eaLQOu

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
  • Adds Run key to start application 2 TTPs 1 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yvygyKkUYqKa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2140
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yvygyKkUYqKa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE189.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2928
    • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
      2⤵
        PID:2776
      • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
        "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
        2⤵
          PID:2580
        • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
          "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:2552

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpE189.tmp

        Filesize

        1KB

        MD5

        642819e8a9b1241ed672b6828b01e0d6

        SHA1

        027b549f9088797a93be6a49f171609f9764b2f5

        SHA256

        90a74d84e80d27078056a2048569d318daac9562e9da852a7128bf42b652453b

        SHA512

        7fac5c80b4f14e26c2d9d5f14a2ad07468253b9fe923a4c1230c7de7c23a01303e02bfb8c4b9cb2a9f8b3dbe43fa944122b8105ad4f21c01699296d5c8c41087

      • memory/2140-32-0x000000006FAC0000-0x000000007006B000-memory.dmp

        Filesize

        5.7MB

      • memory/2140-31-0x0000000002460000-0x00000000024A0000-memory.dmp

        Filesize

        256KB

      • memory/2140-30-0x0000000002460000-0x00000000024A0000-memory.dmp

        Filesize

        256KB

      • memory/2140-29-0x000000006FAC0000-0x000000007006B000-memory.dmp

        Filesize

        5.7MB

      • memory/2140-28-0x000000006FAC0000-0x000000007006B000-memory.dmp

        Filesize

        5.7MB

      • memory/2552-25-0x00000000047D0000-0x0000000004810000-memory.dmp

        Filesize

        256KB

      • memory/2552-22-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2552-12-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2552-13-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2552-14-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2552-15-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2552-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2552-18-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2552-20-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2552-35-0x00000000047D0000-0x0000000004810000-memory.dmp

        Filesize

        256KB

      • memory/2552-23-0x0000000074700000-0x0000000074DEE000-memory.dmp

        Filesize

        6.9MB

      • memory/2552-34-0x0000000074700000-0x0000000074DEE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-1-0x0000000074700000-0x0000000074DEE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-5-0x0000000000560000-0x000000000056A000-memory.dmp

        Filesize

        40KB

      • memory/2800-4-0x00000000003D0000-0x00000000003D8000-memory.dmp

        Filesize

        32KB

      • memory/2800-3-0x00000000005B0000-0x00000000005C8000-memory.dmp

        Filesize

        96KB

      • memory/2800-2-0x0000000004A80000-0x0000000004AC0000-memory.dmp

        Filesize

        256KB

      • memory/2800-0-0x0000000000150000-0x00000000001F8000-memory.dmp

        Filesize

        672KB

      • memory/2800-24-0x0000000074700000-0x0000000074DEE000-memory.dmp

        Filesize

        6.9MB

      • memory/2800-6-0x0000000005CC0000-0x0000000005D2A000-memory.dmp

        Filesize

        424KB