Analysis

  • max time kernel
    137s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 15:46

General

  • Target

    df878f3bd7f03935a56a481ca97941a8.exe

  • Size

    730KB

  • MD5

    df878f3bd7f03935a56a481ca97941a8

  • SHA1

    87955f17139a3ed9feb7fad3945d161b7e7e3e87

  • SHA256

    285a78cb3c2523399e902b0b0ec8d9636aece23c690c64517dbeadbc359ad187

  • SHA512

    f6ad1c002e06ef5379e2d7ce88dc84f275269456203c09d087480868d798ca7b30a841654441125021ca5febd46bb71d6e7b8ffd8b4cdabaf1889ace8e6416e5

  • SSDEEP

    12288:JLpzfvHK7zG1UP+xIZBia56qiUtsKKMuFnUwKPXy:bzKWUP+dnqiwGFnUwKPX

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • AgentTesla payload 7 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe
    "C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zmlcqmbmBObx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp915.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2472
    • C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe
      "C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe"
      2⤵
        PID:2876
      • C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe
        "C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe"
        2⤵
          PID:2384
        • C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe
          "C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe"
          2⤵
            PID:536
          • C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe
            "C:\Users\Admin\AppData\Local\Temp\df878f3bd7f03935a56a481ca97941a8.exe"
            2⤵
            • Accesses Microsoft Outlook profiles
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • outlook_office_path
            • outlook_win_path
            PID:1844

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Execution

        Scheduled Task/Job

        1
        T1053

        Persistence

        Scheduled Task/Job

        1
        T1053

        Privilege Escalation

        Scheduled Task/Job

        1
        T1053

        Credential Access

        Unsecured Credentials

        4
        T1552

        Credentials In Files

        3
        T1552.001

        Credentials in Registry

        1
        T1552.002

        Discovery

        System Information Discovery

        1
        T1082

        Collection

        Data from Local System

        4
        T1005

        Email Collection

        1
        T1114

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp915.tmp
          Filesize

          1KB

          MD5

          cce922110b1b8f85b6ca5376b75ccd23

          SHA1

          74762f50e498e43349ca23a0d689927e337fcaef

          SHA256

          396a8141616c0318cf66b96c924840990700fadc91f5a07a5e4dd3d4ad0c05e2

          SHA512

          65e8c5099b2f14ca10b2c49f964abc571041908759dcdfaf587626d24d3ffe4ef66d0361eb947bace5b35747e9a74e30f8c26645de3e6b037bdfead3c9f06161

        • memory/1460-0-0x0000000000D20000-0x0000000000DDC000-memory.dmp
          Filesize

          752KB

        • memory/1460-1-0x0000000074B10000-0x00000000751FE000-memory.dmp
          Filesize

          6.9MB

        • memory/1460-2-0x0000000000A20000-0x0000000000A60000-memory.dmp
          Filesize

          256KB

        • memory/1460-3-0x0000000000580000-0x0000000000596000-memory.dmp
          Filesize

          88KB

        • memory/1460-4-0x0000000074B10000-0x00000000751FE000-memory.dmp
          Filesize

          6.9MB

        • memory/1460-5-0x0000000005320000-0x00000000053BC000-memory.dmp
          Filesize

          624KB

        • memory/1460-6-0x0000000004DB0000-0x0000000004DEC000-memory.dmp
          Filesize

          240KB

        • memory/1460-24-0x0000000074B10000-0x00000000751FE000-memory.dmp
          Filesize

          6.9MB

        • memory/1844-14-0x0000000000400000-0x000000000043C000-memory.dmp
          Filesize

          240KB

        • memory/1844-13-0x0000000000400000-0x000000000043C000-memory.dmp
          Filesize

          240KB

        • memory/1844-15-0x0000000000400000-0x000000000043C000-memory.dmp
          Filesize

          240KB

        • memory/1844-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
          Filesize

          4KB

        • memory/1844-18-0x0000000000400000-0x000000000043C000-memory.dmp
          Filesize

          240KB

        • memory/1844-22-0x0000000000400000-0x000000000043C000-memory.dmp
          Filesize

          240KB

        • memory/1844-20-0x0000000000400000-0x000000000043C000-memory.dmp
          Filesize

          240KB

        • memory/1844-23-0x0000000074B10000-0x00000000751FE000-memory.dmp
          Filesize

          6.9MB

        • memory/1844-12-0x0000000000400000-0x000000000043C000-memory.dmp
          Filesize

          240KB

        • memory/1844-25-0x0000000000A40000-0x0000000000A80000-memory.dmp
          Filesize

          256KB

        • memory/1844-26-0x0000000074B10000-0x00000000751FE000-memory.dmp
          Filesize

          6.9MB

        • memory/1844-27-0x0000000000A40000-0x0000000000A80000-memory.dmp
          Filesize

          256KB

        • memory/1844-28-0x0000000000A40000-0x0000000000A80000-memory.dmp
          Filesize

          256KB