Analysis

  • max time kernel
    134s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:58

General

  • Target

    MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe

  • Size

    670KB

  • MD5

    2179b80a71372fc6b7c8c4e014f9928f

  • SHA1

    3cbf1652745da8c1ab9a77edd1c5230fd8a074ff

  • SHA256

    e08fedcdcfc38684de2868ee177397876a60e28f6cbaf54f6eeb31c5280b0901

  • SHA512

    20e48a490a77273f2f55f43540a2bcecbdd73f69e4f5bbd709861ae1aa2b94a8cfaf7b9053687a7e9583377f53d82416d2b933ff62389153ee99dd2468b932a5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Godisgood101

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 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\MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe
      "{path}"
      2⤵
        PID:4352
      • C:\Users\Admin\AppData\Local\Temp\MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe
        "{path}"
        2⤵
          PID:3380
        • C:\Users\Admin\AppData\Local\Temp\MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe
          "{path}"
          2⤵
            PID:4184
          • C:\Users\Admin\AppData\Local\Temp\MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe
            "{path}"
            2⤵
            • Accesses Microsoft Outlook profiles
            • Adds Run key to start application
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • outlook_office_path
            • outlook_win_path
            PID:2020

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\MV TBN - PORT INQUIRY FOR LOADING DAP IN BULK_pdf.exe.log

          Filesize

          408B

          MD5

          8adbb2cb7759fdcbc51cfbf0bfd7c867

          SHA1

          f7549e6ea430e7d64b3afb3fc27c77ed5122f85b

          SHA256

          c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297

          SHA512

          f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991

        • memory/2020-134-0x0000000000000000-mapping.dmp

        • memory/2020-135-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/2020-137-0x0000000075270000-0x0000000075821000-memory.dmp

          Filesize

          5.7MB

        • memory/3380-132-0x0000000000000000-mapping.dmp

        • memory/4048-130-0x0000000075270000-0x0000000075821000-memory.dmp

          Filesize

          5.7MB

        • memory/4184-133-0x0000000000000000-mapping.dmp

        • memory/4352-131-0x0000000000000000-mapping.dmp