Analysis

  • max time kernel
    126s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 18:22

General

  • Target

    509a4104ad505a674b03ee8b7dd734431334102f1c1dc79e53ce28549d7ef857.exe

  • Size

    340KB

  • MD5

    0f98b71ceccfe7b70b6bdfa8be22daae

  • SHA1

    6ae2968777eabe28ed20e319ee194b9dc6ebb419

  • SHA256

    509a4104ad505a674b03ee8b7dd734431334102f1c1dc79e53ce28549d7ef857

  • SHA512

    e3fc402bd034713db5da24bdeec5a397f047966259d0ffa80d6e4548fdf8356dd8b1008e571a091c7d007f3d5a1bd31531e3825a37a4dd40cb652d6251ab43f2

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DER4eQabpDCw1p3vmLvsZIaVwiwDcIbDY:gDCwfG1bnxLERRDDCwfG1bnxLERR/

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 3 IoCs
  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 4 IoCs
  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\509a4104ad505a674b03ee8b7dd734431334102f1c1dc79e53ce28549d7ef857.exe
    "C:\Users\Admin\AppData\Local\Temp\509a4104ad505a674b03ee8b7dd734431334102f1c1dc79e53ce28549d7ef857.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:1180
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3360
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1416
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:4136
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4224
          • C:\Users\Admin\AppData\Local\Temp\avscan.exe
            C:\Users\Admin\AppData\Local\Temp\avscan.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2096
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
            5⤵
            • Checks computer location settings
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:3856
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:4300
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
              6⤵
              • Adds policy Run key to start application
              PID:628
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:808
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4560
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4256
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:1252
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          PID:4056
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:444
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1200
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4624
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:852
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1968
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2696
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        PID:3608
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3560

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      340KB

      MD5

      49f71bb46c0aee5e73944a3073566ee3

      SHA1

      54ae998a930e4a5fecd10731b572f7710d9f4c5b

      SHA256

      8bf7c6b8ca357f8fa90dad4a3f04818c7ba71aa4d2b21d454d33ef025aa78463

      SHA512

      7168ab6a2e4ae7c9baa1c88778c48ed1f7098eac1e457eba5a914954af833980d902e23af59784de398abe1cb6208e7c8a3581a49a785039e9c9b7930f0df9b0

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      340KB

      MD5

      49f71bb46c0aee5e73944a3073566ee3

      SHA1

      54ae998a930e4a5fecd10731b572f7710d9f4c5b

      SHA256

      8bf7c6b8ca357f8fa90dad4a3f04818c7ba71aa4d2b21d454d33ef025aa78463

      SHA512

      7168ab6a2e4ae7c9baa1c88778c48ed1f7098eac1e457eba5a914954af833980d902e23af59784de398abe1cb6208e7c8a3581a49a785039e9c9b7930f0df9b0

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      340KB

      MD5

      49f71bb46c0aee5e73944a3073566ee3

      SHA1

      54ae998a930e4a5fecd10731b572f7710d9f4c5b

      SHA256

      8bf7c6b8ca357f8fa90dad4a3f04818c7ba71aa4d2b21d454d33ef025aa78463

      SHA512

      7168ab6a2e4ae7c9baa1c88778c48ed1f7098eac1e457eba5a914954af833980d902e23af59784de398abe1cb6208e7c8a3581a49a785039e9c9b7930f0df9b0

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      340KB

      MD5

      49f71bb46c0aee5e73944a3073566ee3

      SHA1

      54ae998a930e4a5fecd10731b572f7710d9f4c5b

      SHA256

      8bf7c6b8ca357f8fa90dad4a3f04818c7ba71aa4d2b21d454d33ef025aa78463

      SHA512

      7168ab6a2e4ae7c9baa1c88778c48ed1f7098eac1e457eba5a914954af833980d902e23af59784de398abe1cb6208e7c8a3581a49a785039e9c9b7930f0df9b0

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      0e0483d4802632100b6bfe8bc2e5d661

      SHA1

      767e0deb7dcaa7676004e6053957c36cecfeeefa

      SHA256

      81bbebb8d0e77ffffbc7b7d24afdcdce4089f4b04d1a12284eda861c25e03f9f

      SHA512

      8279b0559ca30a0adc6c8614870c3e445866c20f0617a7153cab41982b451dfe9ea44478f37b884465235714623ef26a56f5ea3d1cb81767487c494d3703ab29

    • C:\Windows\hosts.exe

      Filesize

      340KB

      MD5

      cd26fff05468657569ac06ceb2be3884

      SHA1

      255dbc3a4cd57c573c621089192f7a6141e98889

      SHA256

      22c52d0f04936d6b3a9cf06ca2877b564617ac3915d2cddb2ece75ce8c45e202

      SHA512

      a2907c0750bc41fbf63c9eefe92e2ad62f81fb0b9cac95e10e6ebfca11083794712064993f4a9d95eca585bc029ed9f674f6711be881534917e598c42a32f528

    • C:\Windows\hosts.exe

      Filesize

      340KB

      MD5

      cd26fff05468657569ac06ceb2be3884

      SHA1

      255dbc3a4cd57c573c621089192f7a6141e98889

      SHA256

      22c52d0f04936d6b3a9cf06ca2877b564617ac3915d2cddb2ece75ce8c45e202

      SHA512

      a2907c0750bc41fbf63c9eefe92e2ad62f81fb0b9cac95e10e6ebfca11083794712064993f4a9d95eca585bc029ed9f674f6711be881534917e598c42a32f528

    • C:\Windows\hosts.exe

      Filesize

      340KB

      MD5

      cd26fff05468657569ac06ceb2be3884

      SHA1

      255dbc3a4cd57c573c621089192f7a6141e98889

      SHA256

      22c52d0f04936d6b3a9cf06ca2877b564617ac3915d2cddb2ece75ce8c45e202

      SHA512

      a2907c0750bc41fbf63c9eefe92e2ad62f81fb0b9cac95e10e6ebfca11083794712064993f4a9d95eca585bc029ed9f674f6711be881534917e598c42a32f528

    • C:\Windows\hosts.exe

      Filesize

      340KB

      MD5

      cd26fff05468657569ac06ceb2be3884

      SHA1

      255dbc3a4cd57c573c621089192f7a6141e98889

      SHA256

      22c52d0f04936d6b3a9cf06ca2877b564617ac3915d2cddb2ece75ce8c45e202

      SHA512

      a2907c0750bc41fbf63c9eefe92e2ad62f81fb0b9cac95e10e6ebfca11083794712064993f4a9d95eca585bc029ed9f674f6711be881534917e598c42a32f528

    • C:\windows\hosts.exe

      Filesize

      340KB

      MD5

      cd26fff05468657569ac06ceb2be3884

      SHA1

      255dbc3a4cd57c573c621089192f7a6141e98889

      SHA256

      22c52d0f04936d6b3a9cf06ca2877b564617ac3915d2cddb2ece75ce8c45e202

      SHA512

      a2907c0750bc41fbf63c9eefe92e2ad62f81fb0b9cac95e10e6ebfca11083794712064993f4a9d95eca585bc029ed9f674f6711be881534917e598c42a32f528

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b

    • memory/444-170-0x0000000000000000-mapping.dmp

    • memory/628-169-0x0000000000000000-mapping.dmp

    • memory/808-171-0x0000000000000000-mapping.dmp

    • memory/852-176-0x0000000000000000-mapping.dmp

    • memory/1180-134-0x0000000000000000-mapping.dmp

    • memory/1200-172-0x0000000000000000-mapping.dmp

    • memory/1252-177-0x0000000000000000-mapping.dmp

    • memory/1416-141-0x0000000000000000-mapping.dmp

    • memory/1968-146-0x0000000000000000-mapping.dmp

    • memory/2096-154-0x0000000000000000-mapping.dmp

    • memory/2696-153-0x0000000000000000-mapping.dmp

    • memory/3360-135-0x0000000000000000-mapping.dmp

    • memory/3608-166-0x0000000000000000-mapping.dmp

    • memory/3856-162-0x0000000000000000-mapping.dmp

    • memory/4056-164-0x0000000000000000-mapping.dmp

    • memory/4136-145-0x0000000000000000-mapping.dmp

    • memory/4224-148-0x0000000000000000-mapping.dmp

    • memory/4256-175-0x0000000000000000-mapping.dmp

    • memory/4300-163-0x0000000000000000-mapping.dmp

    • memory/4560-173-0x0000000000000000-mapping.dmp

    • memory/4624-174-0x0000000000000000-mapping.dmp