Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2022, 22:05

General

  • Target

    c1f3b41db9bd1059bb7ca4ca159c2ef8e86899fac297d5a0eca72a8792f9b781.exe

  • Size

    433KB

  • MD5

    35797677ce25d743546bf9bac87c255c

  • SHA1

    608b5fe7326cd57be1c7e71e33939aa70b1eca2c

  • SHA256

    c1f3b41db9bd1059bb7ca4ca159c2ef8e86899fac297d5a0eca72a8792f9b781

  • SHA512

    2dcc6a1accab412006082f8e713278dd4f8eb05fef92d0fb97a883cfb6bf5c06bb3fe15150f520f9b6b307dd8d9957ff857b47da605dd7495ff003ecdc865698

  • SSDEEP

    12288:x57qSYh+Tu1lxHxCgpcAnirLS9Mm5fmXHdI3:n7jYhcExN0i9MsfYA

Malware Config

Extracted

Family

xtremerat

C2

gaetano1997.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 6 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • 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
  • NTFS ADS 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1f3b41db9bd1059bb7ca4ca159c2ef8e86899fac297d5a0eca72a8792f9b781.exe
    "C:\Users\Admin\AppData\Local\Temp\c1f3b41db9bd1059bb7ca4ca159c2ef8e86899fac297d5a0eca72a8792f9b781.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • NTFS ADS
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Users\Admin\AppData\Local\Temp\c1f3b41db9bd1059bb7ca4ca159c2ef8e86899fac297d5a0eca72a8792f9b781.exe
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1516
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:1940
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 480
            4⤵
            • Program crash
            PID:1536
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 488
            4⤵
            • Program crash
            PID:3088
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
          3⤵
            PID:1512
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1940 -ip 1940
        1⤵
          PID:968
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1940 -ip 1940
          1⤵
            PID:4464

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/1516-141-0x0000000010000000-0x0000000010050000-memory.dmp

                  Filesize

                  320KB

                • memory/1516-138-0x0000000010000000-0x0000000010050000-memory.dmp

                  Filesize

                  320KB

                • memory/1516-140-0x0000000010000000-0x0000000010050000-memory.dmp

                  Filesize

                  320KB

                • memory/1516-143-0x0000000010000000-0x0000000010050000-memory.dmp

                  Filesize

                  320KB

                • memory/1516-144-0x0000000000400000-0x00000000004A8BF4-memory.dmp

                  Filesize

                  674KB

                • memory/1516-146-0x0000000010000000-0x0000000010050000-memory.dmp

                  Filesize

                  320KB

                • memory/1940-147-0x0000000010000000-0x0000000010050000-memory.dmp

                  Filesize

                  320KB

                • memory/5048-133-0x0000000000400000-0x00000000004A8BF4-memory.dmp

                  Filesize

                  674KB

                • memory/5048-134-0x0000000000400000-0x00000000004A8BF4-memory.dmp

                  Filesize

                  674KB

                • memory/5048-132-0x0000000000400000-0x00000000004A8BF4-memory.dmp

                  Filesize

                  674KB

                • memory/5048-142-0x0000000000400000-0x00000000004A8BF4-memory.dmp

                  Filesize

                  674KB