Analysis

  • max time kernel
    44s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2022 02:19

General

  • Target

    a4b67ebeab5512a378852a4602efe1c9f67b74aa85a56764827a0b838e6afdc6.exe

  • Size

    413KB

  • MD5

    744b5bb6b1abb96180b447abd28055ae

  • SHA1

    28b4348efc31f34298b2ecf9ec2e4a8b2de773b1

  • SHA256

    a4b67ebeab5512a378852a4602efe1c9f67b74aa85a56764827a0b838e6afdc6

  • SHA512

    b328790240ce39fc1a329fdc48c92ac95f151c18adcb83e0dbd07603e99f2266e2e182bafce8e320c8a840e120c86cf4ed6eed7c36427a65aadcf124e8edacbd

  • SSDEEP

    12288:0P6ys+NgzZhkDjhTrlkWd8LN/pjwMQlA/cm6:gBNUfkJZx8LjwMQW/cm6

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 53 IoCs
  • Runs .reg file with regedit 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4b67ebeab5512a378852a4602efe1c9f67b74aa85a56764827a0b838e6afdc6.exe
    "C:\Users\Admin\AppData\Local\Temp\a4b67ebeab5512a378852a4602efe1c9f67b74aa85a56764827a0b838e6afdc6.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:1348
    • C:\Windows\SysWOW64\regedit.exe
      C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
      2⤵
      • Runs .reg file with regedit
      PID:1204
    • C:\Users\Admin\AppData\Local\Temp\a4b67ebeab5512a378852a4602efe1c9f67b74aa85a56764827a0b838e6afdc6.exe
      C:\Users\Admin\AppData\Local\Temp\a4b67ebeab5512a378852a4602efe1c9f67b74aa85a56764827a0b838e6afdc6.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:2036
      • C:\Windows\SysWOW64\regedit.exe
        C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
        3⤵
        • Runs .reg file with regedit
        PID:1992

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

    9a2ef7ac70ffd24f681b1f472a3c8543

    SHA1

    615f7372a4d2180f79d11fd67dc14f4240044ddf

    SHA256

    7ed2a1fdf2407eb73ad7394cd1a4c65606aed2660f8fb7cfc5993a3ce527a347

    SHA512

    0872a0cb1831303f986343ba39d9532a4144928d352a2b295579ea26804ecd81b0ba61858bc2a27d4a83e915252d9d2a79b51569013e89610aaa864cf674be05

  • 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/1204-55-0x0000000000000000-mapping.dmp

  • memory/1348-54-0x0000000075601000-0x0000000075603000-memory.dmp

    Filesize

    8KB

  • memory/1348-66-0x0000000000400000-0x00000000004DD000-memory.dmp

    Filesize

    884KB

  • memory/1992-60-0x0000000000000000-mapping.dmp

  • memory/2036-57-0x0000000000000000-mapping.dmp

  • memory/2036-65-0x0000000000400000-0x00000000004DD000-memory.dmp

    Filesize

    884KB