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Analysis

  • max time kernel
    94s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 12:28

General

  • Target

    919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe

  • Size

    537KB

  • MD5

    8c9baa45fb37a6c89cb9861dcc8d2f1f

  • SHA1

    65342cfdd656011df268269cfa07f93d351bca00

  • SHA256

    919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3

  • SHA512

    f76cfa6dab53abc804285780d52c4608a11b90461930ea03d11e2b3a58c89d67254f2b1e4f25adabc38156dab9aaaecc8298f8b2f9b4dddfa15fb5d8a0039f0b

  • SSDEEP

    12288:UoS493ACIl7vI1kiqHNnyVek/a4QmHNX467p9KMSL8vbfcF3baixe/:UoIjIbgyLC495467zKMRzcVei4/

Malware Config

Extracted

Family

xtremerat

C2

maradona.no-ip.org

Signatures

  • Detect XtremeRAT payload 5 IoCs
  • XtremeRAT

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

  • UPX packed file 7 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe
    "C:\Users\Admin\AppData\Local\Temp\919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Users\Admin\AppData\Local\Temp\919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:5088
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 480
            4⤵
            • Program crash
            PID:3524
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 488
            4⤵
            • Program crash
            PID:2772
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
          3⤵
            PID:3616
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5088 -ip 5088
        1⤵
          PID:2748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5088 -ip 5088
          1⤵
            PID:2292

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/2160-136-0x0000000010000000-0x000000001004E000-memory.dmp

            Filesize

            312KB

          • memory/2160-138-0x0000000010000000-0x000000001004E000-memory.dmp

            Filesize

            312KB

          • memory/2160-141-0x0000000010000000-0x000000001004E000-memory.dmp

            Filesize

            312KB

          • memory/2160-140-0x0000000010000000-0x000000001004E000-memory.dmp

            Filesize

            312KB

          • memory/2160-142-0x0000000000400000-0x0000000000541000-memory.dmp

            Filesize

            1.3MB

          • memory/2160-145-0x0000000010000000-0x000000001004E000-memory.dmp

            Filesize

            312KB

          • memory/5060-132-0x0000000000400000-0x0000000000541000-memory.dmp

            Filesize

            1.3MB

          • memory/5060-139-0x0000000000400000-0x0000000000541000-memory.dmp

            Filesize

            1.3MB

          • memory/5088-144-0x0000000010000000-0x000000001004E000-memory.dmp

            Filesize

            312KB

          • memory/5088-146-0x0000000010000000-0x000000001004E000-memory.dmp

            Filesize

            312KB