Analysis

  • max time kernel
    119s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 03:58

General

  • Target

    7985cd8bd011ec614e1c8830557a6787b17bde184eafc0153f99b9836c6cd079N.exe

  • Size

    42KB

  • MD5

    cb1909decae91221030eea3453d66a50

  • SHA1

    99d7133dfe299994ac9d1a718706b63228d00afc

  • SHA256

    7985cd8bd011ec614e1c8830557a6787b17bde184eafc0153f99b9836c6cd079

  • SHA512

    ec28ccafae4b0aec51d2a0ef93f75242f355adf321ebe5710738fc5a01765cbcaa473ecca72f0b9cb7ab67b1fc747956d3011551e7f50102683f8f0663a4468b

  • SSDEEP

    768:kyiUOm7d6CfXlNlhExmJDolbsFHY4hZR7B3BKhTssd:cnm7EgOmJD1dhzKhTssd

Malware Config

Signatures

  • Detect XtremeRAT payload 6 IoCs
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Xtremerat family
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7985cd8bd011ec614e1c8830557a6787b17bde184eafc0153f99b9836c6cd079N.exe
    "C:\Users\Admin\AppData\Local\Temp\7985cd8bd011ec614e1c8830557a6787b17bde184eafc0153f99b9836c6cd079N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4280
    • C:\Users\Admin\AppData\Local\Temp\7985cd8bd011ec614e1c8830557a6787b17bde184eafc0153f99b9836c6cd079N.exe
      C:\Users\Admin\AppData\Local\Temp\7985cd8bd011ec614e1c8830557a6787b17bde184eafc0153f99b9836c6cd079N.exe
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 476
          4⤵
          • Program crash
          PID:1536
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 488
          4⤵
          • Program crash
          PID:3032
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3660 -ip 3660
    1⤵
      PID:4744
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3660 -ip 3660
      1⤵
        PID:392

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3660-7-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/3660-11-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/4788-3-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/4788-4-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/4788-5-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/4788-6-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/4788-9-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB

      • memory/4788-12-0x0000000010000000-0x000000001004D000-memory.dmp

        Filesize

        308KB