Analysis

  • max time kernel
    47s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 19:46

General

  • Target

    8ef72a9f69167f2a9334515ac45665ea9c0b09b656d7479231c9e2a04c8bc151.exe

  • Size

    806KB

  • MD5

    40d97601d16a51f62ffa664f99ddd1ee

  • SHA1

    2d8a10114d802308426545818cc8b508702463fb

  • SHA256

    8ef72a9f69167f2a9334515ac45665ea9c0b09b656d7479231c9e2a04c8bc151

  • SHA512

    d67e55bb98da540228a03a2e2205b817891cdc04ed76e527321cc0427cbb2f9843b0987f9d5db52eea69f5f8bc8ac890ff4e34e3da2a148606c43e92fac43ec5

  • SSDEEP

    12288:LEncCP0UpnIIxU8H3Ek9aL4cLdTrb0BPjb37ykeuDD/unEIZUlxOnY7a++:CcaAIxL3EkyrLdTEPjbDhdIKxQX/

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 4 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 1 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Runs .reg file with regedit 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ef72a9f69167f2a9334515ac45665ea9c0b09b656d7479231c9e2a04c8bc151.exe
    "C:\Users\Admin\AppData\Local\Temp\8ef72a9f69167f2a9334515ac45665ea9c0b09b656d7479231c9e2a04c8bc151.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:1204
    • C:\Windows\SysWOW64\regedit.exe
      C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
      2⤵
      • Runs .reg file with regedit
      PID:1228
    • C:\Users\Admin\AppData\Local\Temp\8ef72a9f69167f2a9334515ac45665ea9c0b09b656d7479231c9e2a04c8bc151.exe
      C:\Users\Admin\AppData\Local\Temp\8ef72a9f69167f2a9334515ac45665ea9c0b09b656d7479231c9e2a04c8bc151.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:2044
      • C:\Windows\SysWOW64\regedit.exe
        C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
        3⤵
        • Runs .reg file with regedit
        PID:1736

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

    ecddacbe39a1c714b2f6756c91b6bca0

    SHA1

    542f62c2e010b1822aa64fefba63babd72af00b8

    SHA256

    096869a69006a5dd74bae4f97f1f609bf306dcd95864f17cebbaf68bdb6fa55f

    SHA512

    c2d84ba296c78214fe3e8ad5eccefc1152bcc7e43f32901c8b70b55a742b0bda19d1ebdaec6fed3dc1d6c0eb95f009a7f97b9c9fa860a3de7c0f28554f804f06

  • 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/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

    Filesize

    8KB

  • memory/1204-66-0x0000000000400000-0x00000000004DD000-memory.dmp

    Filesize

    884KB

  • memory/1228-55-0x0000000000000000-mapping.dmp

  • memory/1736-60-0x0000000000000000-mapping.dmp

  • memory/2044-57-0x0000000000000000-mapping.dmp

  • memory/2044-65-0x0000000000400000-0x00000000004DD000-memory.dmp

    Filesize

    884KB