Analysis

  • max time kernel
    42s
  • max time network
    62s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 20:38

General

  • Target

    902bbb765ee439b7e745253a564e1e120da66baaa6444f5ec011ef627e97c8f7.exe

  • Size

    806KB

  • MD5

    3f9dbdad249935651eb0026d138c906b

  • SHA1

    69b0fe8ae2e1d97838dfeb6ab09008c83b22d6f4

  • SHA256

    902bbb765ee439b7e745253a564e1e120da66baaa6444f5ec011ef627e97c8f7

  • SHA512

    c223388456b265ea6a488ebf31febc0690d35e06be87991ae7dfbbd44b52c89e18ef4b4b66e3f353a51ae81f1e2345c96bcd9a3633034f4e3fc6c0f544bcbd3d

  • SSDEEP

    12288:xEncCP0UpnIIxU8H3Ek9aL4cLdWmcAMSWxxLdTT/unEIZUlxOnY7a+S:scaAIxL3EkyrLdsLldIKxQX/

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 5 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 2 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 53 IoCs
  • Runs .reg file with regedit 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\902bbb765ee439b7e745253a564e1e120da66baaa6444f5ec011ef627e97c8f7.exe
    "C:\Users\Admin\AppData\Local\Temp\902bbb765ee439b7e745253a564e1e120da66baaa6444f5ec011ef627e97c8f7.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Drops file in Drivers directory
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:824
    • C:\Windows\SysWOW64\regedit.exe
      C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
      2⤵
      • Runs .reg file with regedit
      PID:1396
    • C:\Users\Admin\AppData\Local\Temp\902bbb765ee439b7e745253a564e1e120da66baaa6444f5ec011ef627e97c8f7.exe
      C:\Users\Admin\AppData\Local\Temp\902bbb765ee439b7e745253a564e1e120da66baaa6444f5ec011ef627e97c8f7.exe
      2⤵
      • Drops file in Drivers directory
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Internet Explorer start page
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\SysWOW64\regedit.exe
        C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
        3⤵
        • Runs .reg file with regedit
        PID:2040
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" C:\Windows\web\Inde.html
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1448
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE" C:\Windows\web\Inde.html
          4⤵
          • Modifies Internet Explorer settings
          PID:1608

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Program Files\Common Files\System\taobao.ico

          Filesize

          14KB

          MD5

          468fada123f5548ac87e57bae81f6782

          SHA1

          edb8f012c25906e6afd8bf335b495e16c440243d

          SHA256

          091c882bb307d57f2c7c42309e7ba8740130fef8c3ed772b0bc5e5505e37034d

          SHA512

          635ec26c88c2394dd4f2a81b9aea8f429a91adfeb37ae34e51b03f3cf8e503c123c3685938f40cea07d6146e0c7113aadbe62fa528f1f6d8b995e617fd68a4aa

        • C:\WINDOWS\system32\drivers\etc\hosts

          Filesize

          3KB

          MD5

          f64f5b6c44ea0aea08df27e259d8c718

          SHA1

          d1545148a21ca5b005d60205b9002c0cbe0c9b24

          SHA256

          ce0045305ae86126c24b063bf225df9c8eecc69395b239097daffe7dd9d8d5ec

          SHA512

          0dfaf8a2670284e0922c1164444533b4d8eab2fe12c494a3bd353638555dab9d07007e89f263a5ba83d78bfa5c39a5b7c63c776e642d9bc4d508a21db02ae831

        • C:\Windows\SysWOW64\msscp.reg

          Filesize

          228B

          MD5

          2d06a424ad1c7611ea9caad93892ea26

          SHA1

          a901e15c2ecea498f1ca8ffc5d5c32bd3f0169d8

          SHA256

          8c19027357bcb3170b6844aec44cd4c143c7b795d5df52ff89426615010f715c

          SHA512

          3199dffce9d7625d9e01d7a06c912d3629e5f3d98d3935763df6b323807d46f24a40876d78d5ae7f7ac83c90e498e7c4810d88993904dbca1036e8c06833ccdf

        • C:\Windows\SysWOW64\msscp.reg

          Filesize

          228B

          MD5

          2d06a424ad1c7611ea9caad93892ea26

          SHA1

          a901e15c2ecea498f1ca8ffc5d5c32bd3f0169d8

          SHA256

          8c19027357bcb3170b6844aec44cd4c143c7b795d5df52ff89426615010f715c

          SHA512

          3199dffce9d7625d9e01d7a06c912d3629e5f3d98d3935763df6b323807d46f24a40876d78d5ae7f7ac83c90e498e7c4810d88993904dbca1036e8c06833ccdf

        • memory/824-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

          Filesize

          8KB

        • memory/824-64-0x0000000000400000-0x00000000004DD000-memory.dmp

          Filesize

          884KB

        • memory/824-65-0x0000000002010000-0x00000000020ED000-memory.dmp

          Filesize

          884KB

        • memory/824-69-0x0000000000400000-0x00000000004DD000-memory.dmp

          Filesize

          884KB

        • memory/1756-66-0x0000000000400000-0x00000000004DD000-memory.dmp

          Filesize

          884KB

        • memory/1756-68-0x0000000000400000-0x00000000004DD000-memory.dmp

          Filesize

          884KB