Analysis

  • max time kernel
    112s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:16

General

  • Target

    CATALOGUE-240820..exe

  • Size

    742KB

  • MD5

    5d892bab56f877e400465574c7700304

  • SHA1

    84b6f30f4afe22845c0e16604725917b01b02058

  • SHA256

    b91f48efe2aec048218936491da956e9b3407edcdb0b12694ca546f48b5f4a1a

  • SHA512

    ed7947ec63df789e64326356a6f8daf5d452ef611130c60bf028d538c5e60c91d311efd4062e55185bda9c15d962fa0b95373834b7a5b3a0a33448a30921b17f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    confidentfoundation.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Skillz1212@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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). Likely ransomware behaviour.

  • 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 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe
    "C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gDywvTAVeI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB99B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2588
    • C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe
      "{path}"
      2⤵
        PID:4324
      • C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe
        "{path}"
        2⤵
          PID:208
        • C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:224

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\CATALOGUE-240820..exe.log

        Filesize

        1KB

        MD5

        33d62ef2c354f839a8b2b987e6ee41e7

        SHA1

        d76f64ac411a61f3f232f7f9f7b179bd34042226

        SHA256

        f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9

        SHA512

        d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c

      • C:\Users\Admin\AppData\Local\Temp\tmpB99B.tmp

        Filesize

        1KB

        MD5

        230bc1d25c7b23f64ac39ae71317fbb5

        SHA1

        46d069f819cf9c916b8582a874f809422d473d6c

        SHA256

        703b233f628a17f8d3cbad11ff0a69b721fbebd9c06dab5a1de953e00a845d36

        SHA512

        7982d8d67567cbf74b76fd60a60cfc7ce25ac6dbfd64ff2bc8d8cd4ce0da52ca55175fd2f6a253ada11cdae2a45bab286d148d5f71a066553f1ea49b9e08aed7

      • memory/208-138-0x0000000000000000-mapping.dmp

      • memory/224-139-0x0000000000000000-mapping.dmp

      • memory/224-140-0x0000000000400000-0x0000000000466000-memory.dmp

        Filesize

        408KB

      • memory/224-142-0x0000000005E90000-0x0000000005EF6000-memory.dmp

        Filesize

        408KB

      • memory/224-143-0x0000000006430000-0x0000000006480000-memory.dmp

        Filesize

        320KB

      • memory/1732-134-0x0000000005370000-0x000000000540C000-memory.dmp

        Filesize

        624KB

      • memory/1732-133-0x0000000005190000-0x000000000519A000-memory.dmp

        Filesize

        40KB

      • memory/1732-132-0x00000000050F0000-0x0000000005182000-memory.dmp

        Filesize

        584KB

      • memory/1732-130-0x00000000006A0000-0x0000000000760000-memory.dmp

        Filesize

        768KB

      • memory/1732-131-0x0000000005600000-0x0000000005BA4000-memory.dmp

        Filesize

        5.6MB

      • memory/2588-135-0x0000000000000000-mapping.dmp

      • memory/4324-137-0x0000000000000000-mapping.dmp