Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2023, 20:55

General

  • Target

    8e071395d021200cfdc4c286b3e85e9a.exe

  • Size

    113KB

  • MD5

    8e071395d021200cfdc4c286b3e85e9a

  • SHA1

    66ff12aeff616501903828be2a4db842c47c17d9

  • SHA256

    8c6d6514f0cd7af9defc3b46b1553d8ae2ab73ec6270147b12ed166e72ac1e92

  • SHA512

    7782fe6249d7416ef5e2e1f51ba3f108a0adc9a3cbc44b012b3948d77a9e9df632d4ec4df54f6dc77eec8844d4c9b061d409e22be0cf6148f2ca33d2b4dcae78

  • SSDEEP

    1536:mC5p7b0RGwWtTYGUFwMeAur6vcOAFpRJNF+75DUSvHgMpvP5D9xOPcJS7:mIdo8tEMF+ErFnJkUmAMVRccJS7

Malware Config

Extracted

Family

xtremerat

C2

x0n1rlz.no-ip.biz

Signatures

  • Detect XtremeRAT payload 8 IoCs
  • XtremeRAT

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

  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e071395d021200cfdc4c286b3e85e9a.exe
    "C:\Users\Admin\AppData\Local\Temp\8e071395d021200cfdc4c286b3e85e9a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4628
    • C:\Users\Admin\AppData\Local\Temp\8e071395d021200cfdc4c286b3e85e9a.exe
      C:\Users\Admin\AppData\Local\Temp\8e071395d021200cfdc4c286b3e85e9a.exe
      2⤵
      • Modifies Installed Components in the registry
      • Adds Run key to start application
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:632
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:3016
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 484
            4⤵
            • Program crash
            PID:4764
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 492
            4⤵
            • Program crash
            PID:4368
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3016 -ip 3016
      1⤵
        PID:4708
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3016 -ip 3016
        1⤵
          PID:3852

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/632-6-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/632-7-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/632-4-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/632-3-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/632-11-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/632-13-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/3016-8-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/3016-12-0x0000000010000000-0x000000001004A000-memory.dmp

                Filesize

                296KB

              • memory/4628-0-0x0000000000400000-0x000000000040F000-memory.dmp

                Filesize

                60KB

              • memory/4628-5-0x0000000000400000-0x000000000040F000-memory.dmp

                Filesize

                60KB