Analysis

  • max time kernel
    137s
  • max time network
    36s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    19-10-2021 06:52

General

  • Target

    BL No_ONEYDXBB14291300.exe

  • Size

    532KB

  • MD5

    7b1888bbeb7ce6970d46adc3afce4da4

  • SHA1

    7187301b08ae23137880e08648418314e380e152

  • SHA256

    65b95709aa577bed6eac737e3c35009e6199048bbaf3272e84de46abb94289ef

  • SHA512

    3aa1e35808f7f28b2613eed348fe310b146d468d65d514885ba63c537f5cff80c0b2c8a76d5731259caf11b522bc65589da710e7eea52c3949885089a7bac68a

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.prinutrition.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    forrest

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Drops file in Drivers directory 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 4 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\BL No_ONEYDXBB14291300.exe
    "C:\Users\Admin\AppData\Local\Temp\BL No_ONEYDXBB14291300.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:840
    • C:\Users\Admin\AppData\Local\Temp\BL No_ONEYDXBB14291300.exe
      "C:\Users\Admin\AppData\Local\Temp\BL No_ONEYDXBB14291300.exe"
      2⤵
        PID:1392
      • C:\Users\Admin\AppData\Local\Temp\BL No_ONEYDXBB14291300.exe
        "C:\Users\Admin\AppData\Local\Temp\BL No_ONEYDXBB14291300.exe"
        2⤵
          PID:1436
        • C:\Users\Admin\AppData\Local\Temp\BL No_ONEYDXBB14291300.exe
          "C:\Users\Admin\AppData\Local\Temp\BL No_ONEYDXBB14291300.exe"
          2⤵
          • Drops file in Drivers directory
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1804

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/840-53-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/840-55-0x0000000007220000-0x0000000007221000-memory.dmp

        Filesize

        4KB

      • memory/840-56-0x0000000000330000-0x0000000000338000-memory.dmp

        Filesize

        32KB

      • memory/840-57-0x0000000007360000-0x00000000073B8000-memory.dmp

        Filesize

        352KB

      • memory/1804-58-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1804-59-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1804-60-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1804-61-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1804-63-0x000000000043764E-mapping.dmp

      • memory/1804-62-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1804-64-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1804-66-0x0000000004C20000-0x0000000004C21000-memory.dmp

        Filesize

        4KB

      • memory/1804-67-0x0000000004C21000-0x0000000004C22000-memory.dmp

        Filesize

        4KB