Analysis

  • max time kernel
    97s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-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

Credentials

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

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 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 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:3196
    • C:\Users\Admin\AppData\Local\Temp\PO_NX-L1-15-00001.exe
      "{path}"
      2⤵
        PID:1456
      • C:\Users\Admin\AppData\Local\Temp\PO_NX-L1-15-00001.exe
        "{path}"
        2⤵
          PID:2004
        • 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:1628

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO_NX-L1-15-00001.exe.log

        Filesize

        611B

        MD5

        e09032fb626c6c1d10e2ab27b0278463

        SHA1

        a26ea328ef81ab53a9883f7b9c7d3998883eaf47

        SHA256

        1b834fc0faded24ae9665629c739742a2614784d62f96f9f982a6c678e916147

        SHA512

        2c341b371103d67fb0bd1e49a4a07b3037e3a304b914446c103de43f87370d584e666f0b93e2c28c776188e975cd95855bb3a1bc4ddbcac89acd62ec46cb5e35

      • memory/1456-133-0x0000000000000000-mapping.dmp

      • memory/1628-135-0x0000000000000000-mapping.dmp

      • memory/1628-136-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/1628-138-0x0000000005DC0000-0x0000000006364000-memory.dmp

        Filesize

        5.6MB

      • memory/1628-139-0x0000000006720000-0x0000000006786000-memory.dmp

        Filesize

        408KB

      • memory/1628-140-0x0000000006D60000-0x0000000006DB0000-memory.dmp

        Filesize

        320KB

      • memory/1628-141-0x0000000006F40000-0x0000000006F4A000-memory.dmp

        Filesize

        40KB

      • memory/2004-134-0x0000000000000000-mapping.dmp

      • memory/3196-130-0x00000000009D0000-0x0000000000A6C000-memory.dmp

        Filesize

        624KB

      • memory/3196-131-0x00000000053F0000-0x000000000548C000-memory.dmp

        Filesize

        624KB

      • memory/3196-132-0x0000000005530000-0x00000000055C2000-memory.dmp

        Filesize

        584KB