Analysis

  • max time kernel
    125s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:13

General

  • Target

    PO_NX-L1-15-00001.exe

  • Size

    601KB

  • MD5

    dca1db416954bda2897bea5d0535f231

  • SHA1

    a22b0c6d447687aa7651df0517149754cc373483

  • SHA256

    8de5b231add82c95e720fb340206a50034e9ac1de1108977389538f37a5be45b

  • SHA512

    333907a24af7465825a2caf91c011bc541ae16aea116dfd391ced9351469dad2fa2d2c82b920fd646aa65a9b245fd11b48305e07a2c719a8478994557e109386

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.lacore.ee
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    MBla354X

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO_NX-L1-15-00001.exe
    "C:\Users\Admin\AppData\Local\Temp\PO_NX-L1-15-00001.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Users\Admin\AppData\Local\Temp\PO_NX-L1-15-00001.exe
      "{path}"
      2⤵
        PID:1072
      • C:\Users\Admin\AppData\Local\Temp\PO_NX-L1-15-00001.exe
        "{path}"
        2⤵
          PID:1364
        • C:\Users\Admin\AppData\Local\Temp\PO_NX-L1-15-00001.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:856

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/856-64-0x000000000044733E-mapping.dmp

      • memory/856-58-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/856-59-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/856-61-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/856-62-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/856-63-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/856-66-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/856-68-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/856-69-0x0000000075381000-0x0000000075383000-memory.dmp

        Filesize

        8KB

      • memory/1960-55-0x0000000000410000-0x0000000000418000-memory.dmp

        Filesize

        32KB

      • memory/1960-56-0x0000000005420000-0x0000000005492000-memory.dmp

        Filesize

        456KB

      • memory/1960-57-0x0000000004EF0000-0x0000000004F46000-memory.dmp

        Filesize

        344KB

      • memory/1960-54-0x0000000000360000-0x00000000003FC000-memory.dmp

        Filesize

        624KB