Analysis

  • max time kernel
    150s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 01:04

General

  • Target

    79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1.exe

  • Size

    37KB

  • MD5

    63fa1704b4bbeda36f9a1d254fae9166

  • SHA1

    a4a8f7bc74334a548e6055b7ac82459ec6892dd3

  • SHA256

    79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

  • SHA512

    e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

  • SSDEEP

    768:8HrZtjEF/e782hCY4g/iB0F79KIDN1dCvbYLYQV5nCsm:+rZtaewPBaF79KuUbYLK

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
  • Modifies system executable filetype association 2 TTPs 2 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 2 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 15 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 26 IoCs
  • Drops file in Windows directory 3 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 registry class 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1.exe
    "C:\Users\Admin\AppData\Local\Temp\79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies system executable filetype association
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Windows\SysWOW64\dllChache\Empty.jpg
      C:\Windows\system32\dllChache\Empty.jpg ReStart
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:972
    • C:\Windows\SysWOW64\dllChache\Blank.doc
      C:\Windows\system32\dllChache\Blank.doc ReStart
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1772
    • C:\Windows\SysWOW64\dllChache\Zero.txt
      C:\Windows\system32\dllChache\Zero.txt ReStart
      2⤵
      • Modifies WinLogon for persistence
      • Modifies system executable filetype association
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1660
    • C:\Windows\SysWOW64\dllChache\Hole.zip
      C:\Windows\system32\dllChache\Hole.zip ReStart
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:952
    • C:\Windows\SysWOW64\dllChache\Unoccupied.reg
      C:\Windows\system32\dllChache\Unoccupied.reg ReStart
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1800
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\System32\explorer.exe" C:\Users\Admin\AppData\Local\Temp\79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1
      2⤵
        PID:788
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:1836

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\dllChache\MSVBVM60.DLL

      Filesize

      1.3MB

      MD5

      5343a19c618bc515ceb1695586c6c137

      SHA1

      4dedae8cbde066f31c8e6b52c0baa3f8b1117742

      SHA256

      2246b4feae199408ea66d4a90c1589026f4a5800ce5a28e583b94506a8a73dce

      SHA512

      708d8a252a167fa94e3e1a49e2630d07613ff75a9a3e779a0c1fcbec44aa853a68c401f31a2b84152f46a05f7d93f4e5e502afc7a60236a22ac58dea73fa5606

    • C:\Windows\SysWOW64\dllchache\Blank.doc

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • C:\Windows\SysWOW64\dllchache\Empty.jpg

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • C:\Windows\SysWOW64\dllchache\Hole.zip

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • C:\Windows\SysWOW64\dllchache\Unoccupied.reg

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • C:\Windows\SysWOW64\dllchache\Zero.txt

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Blank.doc

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Blank.doc

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Empty.jpg

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Empty.jpg

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Hole.zip

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Hole.zip

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Unoccupied.reg

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Unoccupied.reg

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Zero.txt

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\Zero.txt

      Filesize

      37KB

      MD5

      63fa1704b4bbeda36f9a1d254fae9166

      SHA1

      a4a8f7bc74334a548e6055b7ac82459ec6892dd3

      SHA256

      79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1

      SHA512

      e61059dcf3b9e8941dae1aed552eb0cf1d3f3f6183695842b5c2e7e8221aeb6d9f0749c9f7a073909baae5184cfc372204e2211814135b70eeaa8b8c65ecb6d8

    • \Windows\SysWOW64\dllchache\msvbvm60.dll

      Filesize

      1.3MB

      MD5

      5343a19c618bc515ceb1695586c6c137

      SHA1

      4dedae8cbde066f31c8e6b52c0baa3f8b1117742

      SHA256

      2246b4feae199408ea66d4a90c1589026f4a5800ce5a28e583b94506a8a73dce

      SHA512

      708d8a252a167fa94e3e1a49e2630d07613ff75a9a3e779a0c1fcbec44aa853a68c401f31a2b84152f46a05f7d93f4e5e502afc7a60236a22ac58dea73fa5606

    • \Windows\SysWOW64\dllchache\msvbvm60.dll

      Filesize

      1.3MB

      MD5

      5343a19c618bc515ceb1695586c6c137

      SHA1

      4dedae8cbde066f31c8e6b52c0baa3f8b1117742

      SHA256

      2246b4feae199408ea66d4a90c1589026f4a5800ce5a28e583b94506a8a73dce

      SHA512

      708d8a252a167fa94e3e1a49e2630d07613ff75a9a3e779a0c1fcbec44aa853a68c401f31a2b84152f46a05f7d93f4e5e502afc7a60236a22ac58dea73fa5606

    • \Windows\SysWOW64\dllchache\msvbvm60.dll

      Filesize

      1.3MB

      MD5

      5343a19c618bc515ceb1695586c6c137

      SHA1

      4dedae8cbde066f31c8e6b52c0baa3f8b1117742

      SHA256

      2246b4feae199408ea66d4a90c1589026f4a5800ce5a28e583b94506a8a73dce

      SHA512

      708d8a252a167fa94e3e1a49e2630d07613ff75a9a3e779a0c1fcbec44aa853a68c401f31a2b84152f46a05f7d93f4e5e502afc7a60236a22ac58dea73fa5606

    • \Windows\SysWOW64\dllchache\msvbvm60.dll

      Filesize

      1.3MB

      MD5

      5343a19c618bc515ceb1695586c6c137

      SHA1

      4dedae8cbde066f31c8e6b52c0baa3f8b1117742

      SHA256

      2246b4feae199408ea66d4a90c1589026f4a5800ce5a28e583b94506a8a73dce

      SHA512

      708d8a252a167fa94e3e1a49e2630d07613ff75a9a3e779a0c1fcbec44aa853a68c401f31a2b84152f46a05f7d93f4e5e502afc7a60236a22ac58dea73fa5606

    • \Windows\SysWOW64\dllchache\msvbvm60.dll

      Filesize

      1.3MB

      MD5

      5343a19c618bc515ceb1695586c6c137

      SHA1

      4dedae8cbde066f31c8e6b52c0baa3f8b1117742

      SHA256

      2246b4feae199408ea66d4a90c1589026f4a5800ce5a28e583b94506a8a73dce

      SHA512

      708d8a252a167fa94e3e1a49e2630d07613ff75a9a3e779a0c1fcbec44aa853a68c401f31a2b84152f46a05f7d93f4e5e502afc7a60236a22ac58dea73fa5606

    • memory/788-97-0x00000000746E1000-0x00000000746E3000-memory.dmp

      Filesize

      8KB

    • memory/952-107-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/952-100-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/972-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/972-104-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1600-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1600-92-0x0000000076461000-0x0000000076463000-memory.dmp

      Filesize

      8KB

    • memory/1660-99-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1660-106-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1772-98-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1772-105-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1800-101-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1800-108-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1836-103-0x00000000039C0000-0x00000000039D0000-memory.dmp

      Filesize

      64KB

    • memory/1836-102-0x000007FEFBB51000-0x000007FEFBB53000-memory.dmp

      Filesize

      8KB