Analysis

  • max time kernel
    125s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    03/04/2024, 18:56

General

  • Target

    Scan0020.exe

  • Size

    638KB

  • MD5

    a2db85fcad3878617112ac3266282587

  • SHA1

    57fb3301594c5577e6c39fdb6388883995cf24d6

  • SHA256

    f88b736fe32b6e458ce63fb67b8bf0ebf6388e6e35e23bf9bcb46893375115f1

  • SHA512

    742b317d09599b21ead1b570ebfdc0dc27197755456090041d56fb2c1e1077ac7f9cbbf77b82d567155db5090acabbae6f8cb1b1692df61ab1439d1cebcc0cbc

  • SSDEEP

    12288:KI+asIzXZ9hvqT2dsWA+DMmyA8wyFtySS7WEZ2a6GwIL8XzuH0:flyuR1DMmryDE4g

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    e)cnIdR1

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 IoCs
  • 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).

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan0020.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan0020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bsDYPzuh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA65D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2744
    • C:\Users\Admin\AppData\Local\Temp\Scan0020.exe
      "C:\Users\Admin\AppData\Local\Temp\Scan0020.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2732

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1640-0-0x0000000000EB0000-0x0000000000F56000-memory.dmp

          Filesize

          664KB

        • memory/1640-1-0x00000000742D0000-0x00000000749BE000-memory.dmp

          Filesize

          6.9MB

        • memory/1640-2-0x0000000004D30000-0x0000000004D70000-memory.dmp

          Filesize

          256KB

        • memory/1640-3-0x0000000000970000-0x0000000000988000-memory.dmp

          Filesize

          96KB

        • memory/1640-4-0x00000000742D0000-0x00000000749BE000-memory.dmp

          Filesize

          6.9MB

        • memory/1640-5-0x0000000004D30000-0x0000000004D70000-memory.dmp

          Filesize

          256KB

        • memory/1640-6-0x0000000005020000-0x0000000005094000-memory.dmp

          Filesize

          464KB

        • memory/1640-27-0x00000000742D0000-0x00000000749BE000-memory.dmp

          Filesize

          6.9MB

        • memory/2732-29-0x0000000004890000-0x00000000048D0000-memory.dmp

          Filesize

          256KB

        • memory/2732-16-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2732-14-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2732-28-0x00000000742D0000-0x00000000749BE000-memory.dmp

          Filesize

          6.9MB

        • memory/2732-12-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2732-26-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2732-24-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2732-22-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2732-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2732-18-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2732-30-0x00000000742D0000-0x00000000749BE000-memory.dmp

          Filesize

          6.9MB

        • memory/2732-31-0x0000000004890000-0x00000000048D0000-memory.dmp

          Filesize

          256KB