Resubmissions

11-08-2022 15:42

220811-s5qvmahafr 10

07-07-2022 11:06

220707-m7m9magch5 10

Analysis

  • max time kernel
    112s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    07-07-2022 11:06

General

  • Target

    45b2938ed3ae72cc8079d9730fa948c7919500da3bf52b7385f8725c72c18d14.exe

  • Size

    136KB

  • MD5

    0c8d4181cfb8a34505b231c7d0fdc401

  • SHA1

    ab6d29707a9121b2267d213cec0edbf0d9f896f1

  • SHA256

    45b2938ed3ae72cc8079d9730fa948c7919500da3bf52b7385f8725c72c18d14

  • SHA512

    d7f8e2a6d01f48f8591cbc297f1906416b810aa730e66c7618c9ab6d8e7ed1a68935bf38984b392c211a9d1186e1e8ba9f68ed7370f88b11b5568285adbb1a86

Malware Config

Signatures

  • Detect XtremeRAT payload 11 IoCs
  • XtremeRAT

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

  • 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 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45b2938ed3ae72cc8079d9730fa948c7919500da3bf52b7385f8725c72c18d14.exe
    "C:\Users\Admin\AppData\Local\Temp\45b2938ed3ae72cc8079d9730fa948c7919500da3bf52b7385f8725c72c18d14.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Users\Admin\AppData\Local\Temp\45b2938ed3ae72cc8079d9730fa948c7919500da3bf52b7385f8725c72c18d14.exe
      "C:\Users\Admin\AppData\Local\Temp\45b2938ed3ae72cc8079d9730fa948c7919500da3bf52b7385f8725c72c18d14.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:4552
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4552 -s 488
            4⤵
            • Program crash
            PID:2320
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4552 -s 496
            4⤵
            • Program crash
            PID:4332
        • C:\Windows\SysWOW64\notepad.exe
          notepad.exe
          3⤵
            PID:4116
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 480
              4⤵
              • Program crash
              PID:760
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 488
              4⤵
              • Program crash
              PID:4216
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4552 -ip 4552
        1⤵
          PID:3896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4116 -ip 4116
          1⤵
            PID:2580
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4116 -ip 4116
            1⤵
              PID:3456
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 4552 -ip 4552
              1⤵
                PID:4268

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/1180-138-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/1180-133-0x0000000000000000-mapping.dmp

              • memory/1180-134-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/1180-135-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/1180-136-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/1180-142-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/4116-141-0x0000000000000000-mapping.dmp

              • memory/4116-143-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/4552-139-0x0000000000000000-mapping.dmp

              • memory/4552-140-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/4552-144-0x0000000010000000-0x0000000010047000-memory.dmp

                Filesize

                284KB

              • memory/4624-137-0x0000000000400000-0x000000000046B000-memory.dmp

                Filesize

                428KB

              • memory/4624-130-0x0000000000400000-0x000000000046B000-memory.dmp

                Filesize

                428KB