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Analysis

  • max time kernel
    3s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 20:38

General

  • Target

    9638f3d8fb4e3791848d07fe732e485eb8d39f77e1abe4f29eef1e525716168c.exe

  • Size

    412KB

  • MD5

    a9cb9ff311ae73131fdb28d401b57645

  • SHA1

    13ae11206c590a482ca7c60c58caac39a1c12972

  • SHA256

    9638f3d8fb4e3791848d07fe732e485eb8d39f77e1abe4f29eef1e525716168c

  • SHA512

    489eec9fd247aa63f92ca8842f623143aaa9de1e52db4914d4d5101f5fd36ee434be1b0856338df9c7c270a5a13d40219e2e70df8a44dca2e84b0dae7f0a2470

  • SSDEEP

    12288:+P6ys+NgzZhkDjhjvrK1rhLW6cQMTemW9pbYUGfI6AXsl:qBNUfkNv21tw7TidK

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\9638f3d8fb4e3791848d07fe732e485eb8d39f77e1abe4f29eef1e525716168c.exe
    "C:\Users\Admin\AppData\Local\Temp\9638f3d8fb4e3791848d07fe732e485eb8d39f77e1abe4f29eef1e525716168c.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:944
    • C:\Windows\SysWOW64\regedit.exe
      C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
      2⤵
      • Runs .reg file with regedit
      PID:904
    • C:\Users\Admin\AppData\Local\Temp\9638f3d8fb4e3791848d07fe732e485eb8d39f77e1abe4f29eef1e525716168c.exe
      C:\Users\Admin\AppData\Local\Temp\9638f3d8fb4e3791848d07fe732e485eb8d39f77e1abe4f29eef1e525716168c.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:1488
      • C:\Windows\SysWOW64\regedit.exe
        C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
        3⤵
        • Runs .reg file with regedit
        PID:468

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

    d91acd0c6ca2155a2f9b35057e813744

    SHA1

    be1ed8891bbff0ff107c00001bd864434a492124

    SHA256

    e22d62c920c6e3b06efbfff4f81719e37532dfcb59b7947d017ed83fce03a0f6

    SHA512

    598b08cf3f153498907e4a2b5415c7cc7ffa57b9b57fa604a6f719cdbf4db8f298da86facfcc85589f4b0bf7f3a5be4d2c492f7f39c89cbfd2665678cb3161d1

  • 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/944-54-0x0000000075351000-0x0000000075353000-memory.dmp

    Filesize

    8KB

  • memory/944-66-0x0000000000400000-0x00000000004DD000-memory.dmp

    Filesize

    884KB

  • memory/1488-65-0x0000000000400000-0x00000000004DD000-memory.dmp

    Filesize

    884KB