Analysis

  • max time kernel
    150s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 5 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 4 IoCs
  • Modifies registry class 42 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 18 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
    • Checks computer location settings
    • 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:1460
    • 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:3480
    • 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:3004
    • 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:3616
    • 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:2948
    • 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:216
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\System32\explorer.exe" C:\Users\Admin\AppData\Local\Temp\79c5c312a7bb446a6f881446996884cb234dcdc61830b5ecd579c9a750d54cc1
      2⤵
        PID:4168
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:4616
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:5088

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • 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\MSVBVM60.DLL

        Filesize

        1.4MB

        MD5

        25f62c02619174b35851b0e0455b3d94

        SHA1

        4e8ee85157f1769f6e3f61c0acbe59072209da71

        SHA256

        898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2

        SHA512

        f4529fd9eca4e4696f7f06874866ff98a1447a9b0d3a20ef0de54d4d694e2497fd39c452f73fab9b8a02962a7b2b88d1e85f6e35c7cbcb9555003c6828bebc3a

      • 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

      • 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

      • C:\Windows\SysWOW64\dllchache\msvbvm60.dll

        Filesize

        1.4MB

        MD5

        25f62c02619174b35851b0e0455b3d94

        SHA1

        4e8ee85157f1769f6e3f61c0acbe59072209da71

        SHA256

        898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2

        SHA512

        f4529fd9eca4e4696f7f06874866ff98a1447a9b0d3a20ef0de54d4d694e2497fd39c452f73fab9b8a02962a7b2b88d1e85f6e35c7cbcb9555003c6828bebc3a

      • C:\Windows\SysWOW64\dllchache\msvbvm60.dll

        Filesize

        1.4MB

        MD5

        25f62c02619174b35851b0e0455b3d94

        SHA1

        4e8ee85157f1769f6e3f61c0acbe59072209da71

        SHA256

        898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2

        SHA512

        f4529fd9eca4e4696f7f06874866ff98a1447a9b0d3a20ef0de54d4d694e2497fd39c452f73fab9b8a02962a7b2b88d1e85f6e35c7cbcb9555003c6828bebc3a

      • C:\Windows\SysWOW64\dllchache\msvbvm60.dll

        Filesize

        1.4MB

        MD5

        25f62c02619174b35851b0e0455b3d94

        SHA1

        4e8ee85157f1769f6e3f61c0acbe59072209da71

        SHA256

        898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2

        SHA512

        f4529fd9eca4e4696f7f06874866ff98a1447a9b0d3a20ef0de54d4d694e2497fd39c452f73fab9b8a02962a7b2b88d1e85f6e35c7cbcb9555003c6828bebc3a

      • C:\Windows\SysWOW64\dllchache\msvbvm60.dll

        Filesize

        1.4MB

        MD5

        25f62c02619174b35851b0e0455b3d94

        SHA1

        4e8ee85157f1769f6e3f61c0acbe59072209da71

        SHA256

        898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2

        SHA512

        f4529fd9eca4e4696f7f06874866ff98a1447a9b0d3a20ef0de54d4d694e2497fd39c452f73fab9b8a02962a7b2b88d1e85f6e35c7cbcb9555003c6828bebc3a

      • C:\Windows\SysWOW64\dllchache\msvbvm60.dll

        Filesize

        1.4MB

        MD5

        25f62c02619174b35851b0e0455b3d94

        SHA1

        4e8ee85157f1769f6e3f61c0acbe59072209da71

        SHA256

        898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2

        SHA512

        f4529fd9eca4e4696f7f06874866ff98a1447a9b0d3a20ef0de54d4d694e2497fd39c452f73fab9b8a02962a7b2b88d1e85f6e35c7cbcb9555003c6828bebc3a

      • memory/216-177-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/216-170-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1460-172-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1460-147-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/2948-169-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/2948-176-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/3004-149-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/3004-174-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/3480-148-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/3480-173-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/3616-168-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/3616-175-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB