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Analysis

  • max time kernel
    153s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2022, 02:27

General

  • Target

    830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf.exe

  • Size

    312KB

  • MD5

    8a07e324c39401883d4f3e928ed38b3d

  • SHA1

    4cb51deef671271cc5a69d4530800705d7dcda43

  • SHA256

    830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf

  • SHA512

    3d147d1899608645a81fcc012076dc31bc7b782d76b13ea790e895984119cf816937953d5337bc6096a3a61b092904229446d600f3983b9f5dee65126211f3e6

  • SSDEEP

    3072:1RYfhn6IxI4BXzk6K6Tr5DOZeCzZPj8o3:rE5dXzkmMesL3

Score
8/10
upx

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • UPX packed file 14 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 4 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 2 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf.exe
    "C:\Users\Admin\AppData\Local\Temp\830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3836
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\\svchost.exe
      2⤵
        PID:2252
      • C:\Users\Admin\AppData\Local\Temp\830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf.exe
        2⤵
        • Checks computer location settings
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2132
        • C:\Users\Admin\E696D64614\winlogon.exe
          "C:\Users\Admin\E696D64614\winlogon.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:664
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\\svchost.exe
            4⤵
              PID:3328
            • C:\Users\Admin\E696D64614\winlogon.exe
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:5084
              • C:\Users\Admin\E696D64614\winlogon.exe
                "C:\Users\Admin\E696D64614\winlogon.exe"
                5⤵
                • Executes dropped EXE
                PID:2708
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 12
                  6⤵
                  • Program crash
                  PID:4108
              • C:\Users\Admin\E696D64614\winlogon.exe
                "C:\Users\Admin\E696D64614\winlogon.exe"
                5⤵
                • Executes dropped EXE
                PID:4072
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4072 -s 12
                  6⤵
                  • Program crash
                  PID:628
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2708 -ip 2708
        1⤵
          PID:5064
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4072 -ip 4072
          1⤵
            PID:4012

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\E696D64614\winlogon.exe

            Filesize

            312KB

            MD5

            8a07e324c39401883d4f3e928ed38b3d

            SHA1

            4cb51deef671271cc5a69d4530800705d7dcda43

            SHA256

            830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf

            SHA512

            3d147d1899608645a81fcc012076dc31bc7b782d76b13ea790e895984119cf816937953d5337bc6096a3a61b092904229446d600f3983b9f5dee65126211f3e6

          • C:\Users\Admin\E696D64614\winlogon.exe

            Filesize

            312KB

            MD5

            8a07e324c39401883d4f3e928ed38b3d

            SHA1

            4cb51deef671271cc5a69d4530800705d7dcda43

            SHA256

            830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf

            SHA512

            3d147d1899608645a81fcc012076dc31bc7b782d76b13ea790e895984119cf816937953d5337bc6096a3a61b092904229446d600f3983b9f5dee65126211f3e6

          • C:\Users\Admin\E696D64614\winlogon.exe

            Filesize

            312KB

            MD5

            8a07e324c39401883d4f3e928ed38b3d

            SHA1

            4cb51deef671271cc5a69d4530800705d7dcda43

            SHA256

            830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf

            SHA512

            3d147d1899608645a81fcc012076dc31bc7b782d76b13ea790e895984119cf816937953d5337bc6096a3a61b092904229446d600f3983b9f5dee65126211f3e6

          • C:\Users\Admin\E696D64614\winlogon.exe

            Filesize

            312KB

            MD5

            8a07e324c39401883d4f3e928ed38b3d

            SHA1

            4cb51deef671271cc5a69d4530800705d7dcda43

            SHA256

            830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf

            SHA512

            3d147d1899608645a81fcc012076dc31bc7b782d76b13ea790e895984119cf816937953d5337bc6096a3a61b092904229446d600f3983b9f5dee65126211f3e6

          • C:\Users\Admin\E696D64614\winlogon.exe

            Filesize

            312KB

            MD5

            8a07e324c39401883d4f3e928ed38b3d

            SHA1

            4cb51deef671271cc5a69d4530800705d7dcda43

            SHA256

            830573b04db1bac3f5c890a7dad7e2d1e5dce8ea3210a814391318a1521fcdbf

            SHA512

            3d147d1899608645a81fcc012076dc31bc7b782d76b13ea790e895984119cf816937953d5337bc6096a3a61b092904229446d600f3983b9f5dee65126211f3e6

          • memory/664-151-0x0000000000400000-0x0000000000437000-memory.dmp

            Filesize

            220KB

          • memory/2132-142-0x0000000000400000-0x000000000041C000-memory.dmp

            Filesize

            112KB

          • memory/2132-138-0x0000000000400000-0x000000000041C000-memory.dmp

            Filesize

            112KB

          • memory/2132-135-0x0000000000400000-0x000000000041C000-memory.dmp

            Filesize

            112KB

          • memory/2132-146-0x0000000000400000-0x000000000041C000-memory.dmp

            Filesize

            112KB

          • memory/2132-139-0x0000000000400000-0x000000000041C000-memory.dmp

            Filesize

            112KB

          • memory/3836-136-0x0000000000400000-0x0000000000437000-memory.dmp

            Filesize

            220KB

          • memory/3836-132-0x0000000000400000-0x0000000000437000-memory.dmp

            Filesize

            220KB

          • memory/5084-157-0x0000000000400000-0x000000000041C000-memory.dmp

            Filesize

            112KB