Analysis

  • max time kernel
    152s
  • max time network
    92s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 16:44

General

  • Target

    e3e7fb24bde111a5d15aa0afa089011e75873a2be33cd57353368a43925214da.exe

  • Size

    1022KB

  • MD5

    10dc5b3f67ea189863de2b1566dd9d83

  • SHA1

    c2e82f21f35ff6a7b234e20bf5b5ffbd128cd30b

  • SHA256

    e3e7fb24bde111a5d15aa0afa089011e75873a2be33cd57353368a43925214da

  • SHA512

    df9d9144404d5df5d70032b16bad6375d75e1d9d04b45e452a43080f5ee621ec463eed11dfc69a772171fc44e62e62a90d4d05690ee9913adeb5d428261236d4

  • SSDEEP

    24576:eE7TlRvcQy0bWV0KdgaaUjYAlVW6eYX3zVTD3cJ:eATlKwb3KdgahjYAlVW6HhD3cJ

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Executes dropped EXE 2 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 5 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e3e7fb24bde111a5d15aa0afa089011e75873a2be33cd57353368a43925214da.exe
    "C:\Users\Admin\AppData\Local\Temp\e3e7fb24bde111a5d15aa0afa089011e75873a2be33cd57353368a43925214da.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Roaming\00CD98\019D60.exe
      "C:\Users\Admin\AppData\Roaming\00CD98\019D60.exe" -launcher
      2⤵
      • Executes dropped EXE
      PID:1932
    • C:\Users\Admin\AppData\Local\Temp\01CE60
      "C:\Users\Admin\AppData\Local\Temp\01CE60"
      2⤵
      • Modifies WinLogon for persistence
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT /delete /yes
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1748
        • C:\Windows\SysWOW64\at.exe
          AT /delete /yes
          4⤵
            PID:1068
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\chrome.exe
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1692
          • C:\Windows\SysWOW64\at.exe
            AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\chrome.exe
            4⤵
              PID:1048
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /C cacls "C:\system volume information" /e /g "Admin":f
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:976
            • C:\Windows\SysWOW64\cacls.exe
              cacls "C:\system volume information" /e /g "Admin":f
              4⤵
                PID:1268

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\01CE60

          Filesize

          664KB

          MD5

          394c51f7d8dd30a6b0fb6c7e712d0f5e

          SHA1

          6ff3bc4961f2c5b74476a7c46e39ec0447eabb19

          SHA256

          d98e4890a6fb9b1df7afdc41e4d77b5d6c2a9016f87eb33b32d8721304c8df1c

          SHA512

          fcdca5bb9560f68ca21c55f0a8e329b76a0c8677293034d02267c83fd897eb823bac9776eb345e532be501abeba073436be5ecf47555fadff37bd9384ebc4019

        • C:\Users\Admin\AppData\Local\Temp\01CE60

          Filesize

          664KB

          MD5

          394c51f7d8dd30a6b0fb6c7e712d0f5e

          SHA1

          6ff3bc4961f2c5b74476a7c46e39ec0447eabb19

          SHA256

          d98e4890a6fb9b1df7afdc41e4d77b5d6c2a9016f87eb33b32d8721304c8df1c

          SHA512

          fcdca5bb9560f68ca21c55f0a8e329b76a0c8677293034d02267c83fd897eb823bac9776eb345e532be501abeba073436be5ecf47555fadff37bd9384ebc4019

        • C:\Users\Admin\AppData\Roaming\00CD98\019D60.exe

          Filesize

          401KB

          MD5

          8dafa329c8bb22ffbccdc0540fa38275

          SHA1

          6e319c82e6dec2511bc22cee091f6650683535e2

          SHA256

          5cdd13aa5fd23228cfb4ffdb1c61baa53fb248db99a97b465b6efe1e2c7c189e

          SHA512

          753db854fe728a21635586e40619d69ea3b1c5b39bddd0231e3cbf31d8326756cf478600398510dc5504b0c8266516e1e5e97030d85e958ce5cfd0adc47e98e3

        • C:\Users\Admin\AppData\Roaming\00CD98\019D60.exe

          Filesize

          401KB

          MD5

          8dafa329c8bb22ffbccdc0540fa38275

          SHA1

          6e319c82e6dec2511bc22cee091f6650683535e2

          SHA256

          5cdd13aa5fd23228cfb4ffdb1c61baa53fb248db99a97b465b6efe1e2c7c189e

          SHA512

          753db854fe728a21635586e40619d69ea3b1c5b39bddd0231e3cbf31d8326756cf478600398510dc5504b0c8266516e1e5e97030d85e958ce5cfd0adc47e98e3

        • \Users\Admin\AppData\Local\Temp\01CE60

          Filesize

          664KB

          MD5

          394c51f7d8dd30a6b0fb6c7e712d0f5e

          SHA1

          6ff3bc4961f2c5b74476a7c46e39ec0447eabb19

          SHA256

          d98e4890a6fb9b1df7afdc41e4d77b5d6c2a9016f87eb33b32d8721304c8df1c

          SHA512

          fcdca5bb9560f68ca21c55f0a8e329b76a0c8677293034d02267c83fd897eb823bac9776eb345e532be501abeba073436be5ecf47555fadff37bd9384ebc4019

        • \Users\Admin\AppData\Roaming\00CD98\019D60.exe

          Filesize

          401KB

          MD5

          8dafa329c8bb22ffbccdc0540fa38275

          SHA1

          6e319c82e6dec2511bc22cee091f6650683535e2

          SHA256

          5cdd13aa5fd23228cfb4ffdb1c61baa53fb248db99a97b465b6efe1e2c7c189e

          SHA512

          753db854fe728a21635586e40619d69ea3b1c5b39bddd0231e3cbf31d8326756cf478600398510dc5504b0c8266516e1e5e97030d85e958ce5cfd0adc47e98e3

        • \Users\Admin\AppData\Roaming\00CD98\019D60.exe

          Filesize

          401KB

          MD5

          8dafa329c8bb22ffbccdc0540fa38275

          SHA1

          6e319c82e6dec2511bc22cee091f6650683535e2

          SHA256

          5cdd13aa5fd23228cfb4ffdb1c61baa53fb248db99a97b465b6efe1e2c7c189e

          SHA512

          753db854fe728a21635586e40619d69ea3b1c5b39bddd0231e3cbf31d8326756cf478600398510dc5504b0c8266516e1e5e97030d85e958ce5cfd0adc47e98e3

        • memory/976-82-0x0000000000000000-mapping.dmp

        • memory/1048-78-0x0000000000000000-mapping.dmp

        • memory/1068-75-0x0000000000000000-mapping.dmp

        • memory/1268-83-0x0000000000000000-mapping.dmp

        • memory/1448-72-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/1448-81-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/1448-67-0x0000000000000000-mapping.dmp

        • memory/1644-71-0x0000000004AA0000-0x0000000004B50000-memory.dmp

          Filesize

          704KB

        • memory/1644-56-0x00000000002D0000-0x00000000002F7000-memory.dmp

          Filesize

          156KB

        • memory/1644-57-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/1644-54-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/1644-55-0x0000000075E51000-0x0000000075E53000-memory.dmp

          Filesize

          8KB

        • memory/1644-84-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/1644-59-0x0000000002190000-0x00000000021A0000-memory.dmp

          Filesize

          64KB

        • memory/1644-70-0x00000000048F0000-0x000000000495B000-memory.dmp

          Filesize

          428KB

        • memory/1644-80-0x0000000004AA0000-0x0000000004B50000-memory.dmp

          Filesize

          704KB

        • memory/1692-77-0x0000000000000000-mapping.dmp

        • memory/1748-74-0x0000000000000000-mapping.dmp

        • memory/1932-64-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/1932-65-0x00000000003B0000-0x00000000003D7000-memory.dmp

          Filesize

          156KB

        • memory/1932-61-0x0000000000000000-mapping.dmp