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Analysis

  • max time kernel
    130s
  • 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, 18:21

General

  • Target

    84f9e3fe3e45d1ec2809a510ac1bd2a813cd3464bb9a8dee1857a5ff306b2828.exe

  • Size

    226KB

  • MD5

    0d13f8270761d939d0170e7c079d1f32

  • SHA1

    21aa183e1de96e0d73ad7b43107be043cca172db

  • SHA256

    84f9e3fe3e45d1ec2809a510ac1bd2a813cd3464bb9a8dee1857a5ff306b2828

  • SHA512

    f68bf97a2cee8aceb3ac41b068a5d5e58b1621c33db2be6dcc9bece64ce83d41e3be3ae565e0b795e290a6369306d44f8f8b43f56d77d8d5418e6b4ac11bc66b

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DER4eQyMWoe0c8TilDcq1svVuaulvCN:gDCwfG1bnxLERRh5yc8TO91XFi

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\84f9e3fe3e45d1ec2809a510ac1bd2a813cd3464bb9a8dee1857a5ff306b2828.exe
    "C:\Users\Admin\AppData\Local\Temp\84f9e3fe3e45d1ec2809a510ac1bd2a813cd3464bb9a8dee1857a5ff306b2828.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:2356
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2176
    • 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:1348
      • 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:3140
      • 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:4560
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2032
        • 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:516
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3740
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3252
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4480
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:5088
    • 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:3300
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • 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:1280
        • C:\Users\Admin\AppData\Local\Temp\avscan.exe
          C:\Users\Admin\AppData\Local\Temp\avscan.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3076
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
          4⤵
          • Checks computer location settings
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:2376
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:4764
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
            5⤵
            • Adds policy Run key to start application
            PID:3132
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3424
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:676
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:860
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4572
      • 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:2572
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1156

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      226KB

      MD5

      6a80d904e699b4b77152e28f8509878c

      SHA1

      f44ebc5b007493372b96524487b48fcec65e5020

      SHA256

      a2777bc53285dcf15296aec112bf697d2856ade26667e03501a38edc9957ed80

      SHA512

      9a3acdebd3ae28a144cc3485efa733ef523c404699bac4947975c7e4cd4c8280be75d790931f5a6fe473707f39d822df0867c36e974fc484b0f416ee6c72ecdd

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

      Filesize

      226KB

      MD5

      6a80d904e699b4b77152e28f8509878c

      SHA1

      f44ebc5b007493372b96524487b48fcec65e5020

      SHA256

      a2777bc53285dcf15296aec112bf697d2856ade26667e03501a38edc9957ed80

      SHA512

      9a3acdebd3ae28a144cc3485efa733ef523c404699bac4947975c7e4cd4c8280be75d790931f5a6fe473707f39d822df0867c36e974fc484b0f416ee6c72ecdd

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

      Filesize

      226KB

      MD5

      6a80d904e699b4b77152e28f8509878c

      SHA1

      f44ebc5b007493372b96524487b48fcec65e5020

      SHA256

      a2777bc53285dcf15296aec112bf697d2856ade26667e03501a38edc9957ed80

      SHA512

      9a3acdebd3ae28a144cc3485efa733ef523c404699bac4947975c7e4cd4c8280be75d790931f5a6fe473707f39d822df0867c36e974fc484b0f416ee6c72ecdd

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

      Filesize

      226KB

      MD5

      6a80d904e699b4b77152e28f8509878c

      SHA1

      f44ebc5b007493372b96524487b48fcec65e5020

      SHA256

      a2777bc53285dcf15296aec112bf697d2856ade26667e03501a38edc9957ed80

      SHA512

      9a3acdebd3ae28a144cc3485efa733ef523c404699bac4947975c7e4cd4c8280be75d790931f5a6fe473707f39d822df0867c36e974fc484b0f416ee6c72ecdd

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      0e0483d4802632100b6bfe8bc2e5d661

      SHA1

      767e0deb7dcaa7676004e6053957c36cecfeeefa

      SHA256

      81bbebb8d0e77ffffbc7b7d24afdcdce4089f4b04d1a12284eda861c25e03f9f

      SHA512

      8279b0559ca30a0adc6c8614870c3e445866c20f0617a7153cab41982b451dfe9ea44478f37b884465235714623ef26a56f5ea3d1cb81767487c494d3703ab29

    • C:\Windows\hosts.exe

      Filesize

      226KB

      MD5

      96079c82cb2b799c208a4ef0d90581a9

      SHA1

      bff7b19a889096d4eaaf971053ca09aba594c375

      SHA256

      12565d37a4bffa0eacf3068e50b8e81c39f0f484117aba987cc6ea041a20517d

      SHA512

      86bee8c1851f1cda7eb80ddbfb5dd313ab9b0ba66134b944053decd036e1414ed625f99cc827a08d4a695ac2ead1a05799ab21cd4728e85b623b7c78f7f0fc07

    • C:\Windows\hosts.exe

      Filesize

      226KB

      MD5

      96079c82cb2b799c208a4ef0d90581a9

      SHA1

      bff7b19a889096d4eaaf971053ca09aba594c375

      SHA256

      12565d37a4bffa0eacf3068e50b8e81c39f0f484117aba987cc6ea041a20517d

      SHA512

      86bee8c1851f1cda7eb80ddbfb5dd313ab9b0ba66134b944053decd036e1414ed625f99cc827a08d4a695ac2ead1a05799ab21cd4728e85b623b7c78f7f0fc07

    • C:\Windows\hosts.exe

      Filesize

      226KB

      MD5

      96079c82cb2b799c208a4ef0d90581a9

      SHA1

      bff7b19a889096d4eaaf971053ca09aba594c375

      SHA256

      12565d37a4bffa0eacf3068e50b8e81c39f0f484117aba987cc6ea041a20517d

      SHA512

      86bee8c1851f1cda7eb80ddbfb5dd313ab9b0ba66134b944053decd036e1414ed625f99cc827a08d4a695ac2ead1a05799ab21cd4728e85b623b7c78f7f0fc07

    • C:\Windows\hosts.exe

      Filesize

      226KB

      MD5

      96079c82cb2b799c208a4ef0d90581a9

      SHA1

      bff7b19a889096d4eaaf971053ca09aba594c375

      SHA256

      12565d37a4bffa0eacf3068e50b8e81c39f0f484117aba987cc6ea041a20517d

      SHA512

      86bee8c1851f1cda7eb80ddbfb5dd313ab9b0ba66134b944053decd036e1414ed625f99cc827a08d4a695ac2ead1a05799ab21cd4728e85b623b7c78f7f0fc07

    • C:\windows\hosts.exe

      Filesize

      226KB

      MD5

      96079c82cb2b799c208a4ef0d90581a9

      SHA1

      bff7b19a889096d4eaaf971053ca09aba594c375

      SHA256

      12565d37a4bffa0eacf3068e50b8e81c39f0f484117aba987cc6ea041a20517d

      SHA512

      86bee8c1851f1cda7eb80ddbfb5dd313ab9b0ba66134b944053decd036e1414ed625f99cc827a08d4a695ac2ead1a05799ab21cd4728e85b623b7c78f7f0fc07

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b