Analysis

  • max time kernel
    143s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2024, 16:23

General

  • Target

    41572cb943bcaed0ddcbefd88e77b860.exe

  • Size

    598KB

  • MD5

    41572cb943bcaed0ddcbefd88e77b860

  • SHA1

    a78e19ac7fde3fddc42a816717351f3d9010b90f

  • SHA256

    398970d0c4754fa90d6f04c15fbf6d0bb88fb05d63dc4d7b919255ed774e3899

  • SHA512

    bd8700b44f6c2a5cfa09d0ae16e08482691c7f4b4b7d4f0c96e479da2cab5c7a8ff705a07cf9f3a7f614f97bd502e59ad6889c6e7fc103ad05c4ae990bd0330b

  • SSDEEP

    12288:2FdMZS02iNv4sUZYX+0jWMLVKvEgRFKklt+YLft3:A0S01usRXLVKvpRFK6t+KF

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.spamora.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Emotion22

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 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
  • 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 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\41572cb943bcaed0ddcbefd88e77b860.exe
    "C:\Users\Admin\AppData\Local\Temp\41572cb943bcaed0ddcbefd88e77b860.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LWzgRtIdnvQN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8EE7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2728
    • C:\Users\Admin\AppData\Local\Temp\41572cb943bcaed0ddcbefd88e77b860.exe
      "{path}"
      2⤵
        PID:2896
      • C:\Users\Admin\AppData\Local\Temp\41572cb943bcaed0ddcbefd88e77b860.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:2656

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmp8EE7.tmp

            Filesize

            1KB

            MD5

            8adf7df41362a11dd17aa9d30020ce7e

            SHA1

            d0fa42fabc6fd4305a2cd8160e093e0c09fc3aa3

            SHA256

            067f26d32c07364a28c949d9f9b536021933ff360da06ec6bafd8815d91624d9

            SHA512

            86e4f42c2cfa86ecff29201bb06124ea88c9f6983326c690cc9ff8188403d1979048cde577ca43778c2ef705973c7ef7dd59ccff06efdf530f0dee19cc34ec0d

          • memory/1752-1-0x00000000741E0000-0x00000000748CE000-memory.dmp

            Filesize

            6.9MB

          • memory/1752-0-0x0000000000980000-0x0000000000A1C000-memory.dmp

            Filesize

            624KB

          • memory/1752-2-0x0000000002090000-0x00000000020D0000-memory.dmp

            Filesize

            256KB

          • memory/1752-3-0x0000000000590000-0x0000000000598000-memory.dmp

            Filesize

            32KB

          • memory/1752-4-0x00000000741E0000-0x00000000748CE000-memory.dmp

            Filesize

            6.9MB

          • memory/1752-5-0x0000000002090000-0x00000000020D0000-memory.dmp

            Filesize

            256KB

          • memory/1752-6-0x0000000007EC0000-0x0000000007F40000-memory.dmp

            Filesize

            512KB

          • memory/1752-7-0x0000000004BF0000-0x0000000004C2C000-memory.dmp

            Filesize

            240KB

          • memory/1752-24-0x00000000741E0000-0x00000000748CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2656-13-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2656-23-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2656-17-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2656-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2656-21-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2656-26-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2656-11-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2656-15-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2656-28-0x0000000004C40000-0x0000000004C80000-memory.dmp

            Filesize

            256KB

          • memory/2656-27-0x00000000741E0000-0x00000000748CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2656-31-0x00000000741E0000-0x00000000748CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2656-32-0x0000000004C40000-0x0000000004C80000-memory.dmp

            Filesize

            256KB

          • memory/2656-33-0x0000000004C40000-0x0000000004C80000-memory.dmp

            Filesize

            256KB

          • memory/2656-34-0x0000000004C40000-0x0000000004C80000-memory.dmp

            Filesize

            256KB