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Analysis

  • max time kernel
    138s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 07:31

General

  • Target

    a0c5e39b6bafe3193e0b3e8787b32b3d5d2de6b5f34e5df7830d1c729d192761.exe

  • Size

    1.0MB

  • MD5

    6dfbfd3efd9eb2a1b9f39b161191c6e0

  • SHA1

    320d332f817b4d770c672021dae574ee82a95c4d

  • SHA256

    a0c5e39b6bafe3193e0b3e8787b32b3d5d2de6b5f34e5df7830d1c729d192761

  • SHA512

    90ef1fb5d192bade98e58aa38294a110cd0561f39ffda222ed23198b68acf310fc3ab62a2d265e2be644e0532ab1dddc5b532da252690b7f1dadefd3e15b5c01

  • SSDEEP

    12288:g72bn2Yp72bn2Yr72bn2Yp72bn2YC72bn2Yp72bn2Yw:g72zF72zf72zF72zm72zF72zs

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 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0c5e39b6bafe3193e0b3e8787b32b3d5d2de6b5f34e5df7830d1c729d192761.exe
    "C:\Users\Admin\AppData\Local\Temp\a0c5e39b6bafe3193e0b3e8787b32b3d5d2de6b5f34e5df7830d1c729d192761.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 behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4756
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4952
    • 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:1512
      • 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:2288
      • 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:2312
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2280
        • 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:4976
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4748
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3536
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4220
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3196
    • 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:3908
      • 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:1916
        • 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:228
        • 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:5116
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:4392
          • 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:5056
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3912
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:5008
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2848
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4200
      • 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:3400
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1712

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      1.0MB

      MD5

      1eae6062a338722369e10b19153dc042

      SHA1

      aaf3725877dec43d854335b5675d1df2b988bcc1

      SHA256

      743b99dfc7a83516e4fa0aed8d7d8fcb130373f069792cfbed30f9e63116c97b

      SHA512

      453c171bf6ecc4b3a3847e33dd5d94570c7d521c795dd54f745baa6d5c2b99a50112d5c9996be0a3462544b3e5ea37346f20643ad38d09c52dc36d77fb7932a5

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

      Filesize

      1.0MB

      MD5

      1eae6062a338722369e10b19153dc042

      SHA1

      aaf3725877dec43d854335b5675d1df2b988bcc1

      SHA256

      743b99dfc7a83516e4fa0aed8d7d8fcb130373f069792cfbed30f9e63116c97b

      SHA512

      453c171bf6ecc4b3a3847e33dd5d94570c7d521c795dd54f745baa6d5c2b99a50112d5c9996be0a3462544b3e5ea37346f20643ad38d09c52dc36d77fb7932a5

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

      Filesize

      1.0MB

      MD5

      1eae6062a338722369e10b19153dc042

      SHA1

      aaf3725877dec43d854335b5675d1df2b988bcc1

      SHA256

      743b99dfc7a83516e4fa0aed8d7d8fcb130373f069792cfbed30f9e63116c97b

      SHA512

      453c171bf6ecc4b3a3847e33dd5d94570c7d521c795dd54f745baa6d5c2b99a50112d5c9996be0a3462544b3e5ea37346f20643ad38d09c52dc36d77fb7932a5

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

      Filesize

      1.0MB

      MD5

      1eae6062a338722369e10b19153dc042

      SHA1

      aaf3725877dec43d854335b5675d1df2b988bcc1

      SHA256

      743b99dfc7a83516e4fa0aed8d7d8fcb130373f069792cfbed30f9e63116c97b

      SHA512

      453c171bf6ecc4b3a3847e33dd5d94570c7d521c795dd54f745baa6d5c2b99a50112d5c9996be0a3462544b3e5ea37346f20643ad38d09c52dc36d77fb7932a5

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      7fc0db81060e343fd209dc050b401f77

      SHA1

      08ce8975b023bf90c21b8e64cd54fdd39debce04

      SHA256

      4a21d378652d4291a6b9e88a1934ac51e9eccd5c9a42aa09076219301509367f

      SHA512

      e0d13ba3713707f7cb9be56240930a8f47d8c302e692b49dcb01f7bdf3e3475f829e1ead60ce6a5f98bed591be96456e9c3ef67bb27f88dc70343c1412e9de57

    • C:\Windows\hosts.exe

      Filesize

      1.0MB

      MD5

      56e1b68d671fa69ec41f5e98e36d98bb

      SHA1

      9e2da8b6981c8632791e751ee4984a244f71ba0d

      SHA256

      4be43796b5510daf3d79a4fd2d821facbf5d90d121de5790a5090e98f1262f1f

      SHA512

      bf11b554704f59bb92c15ef618163837382c5637d29223b4872ff16e7aaccce118cdf95df621836c62463cd1d07b6de4e1871d04779041637b1b41ace3a772e1

    • C:\Windows\hosts.exe

      Filesize

      1.0MB

      MD5

      56e1b68d671fa69ec41f5e98e36d98bb

      SHA1

      9e2da8b6981c8632791e751ee4984a244f71ba0d

      SHA256

      4be43796b5510daf3d79a4fd2d821facbf5d90d121de5790a5090e98f1262f1f

      SHA512

      bf11b554704f59bb92c15ef618163837382c5637d29223b4872ff16e7aaccce118cdf95df621836c62463cd1d07b6de4e1871d04779041637b1b41ace3a772e1

    • C:\Windows\hosts.exe

      Filesize

      1.0MB

      MD5

      56e1b68d671fa69ec41f5e98e36d98bb

      SHA1

      9e2da8b6981c8632791e751ee4984a244f71ba0d

      SHA256

      4be43796b5510daf3d79a4fd2d821facbf5d90d121de5790a5090e98f1262f1f

      SHA512

      bf11b554704f59bb92c15ef618163837382c5637d29223b4872ff16e7aaccce118cdf95df621836c62463cd1d07b6de4e1871d04779041637b1b41ace3a772e1

    • C:\Windows\hosts.exe

      Filesize

      1.0MB

      MD5

      56e1b68d671fa69ec41f5e98e36d98bb

      SHA1

      9e2da8b6981c8632791e751ee4984a244f71ba0d

      SHA256

      4be43796b5510daf3d79a4fd2d821facbf5d90d121de5790a5090e98f1262f1f

      SHA512

      bf11b554704f59bb92c15ef618163837382c5637d29223b4872ff16e7aaccce118cdf95df621836c62463cd1d07b6de4e1871d04779041637b1b41ace3a772e1

    • C:\windows\hosts.exe

      Filesize

      1.0MB

      MD5

      56e1b68d671fa69ec41f5e98e36d98bb

      SHA1

      9e2da8b6981c8632791e751ee4984a244f71ba0d

      SHA256

      4be43796b5510daf3d79a4fd2d821facbf5d90d121de5790a5090e98f1262f1f

      SHA512

      bf11b554704f59bb92c15ef618163837382c5637d29223b4872ff16e7aaccce118cdf95df621836c62463cd1d07b6de4e1871d04779041637b1b41ace3a772e1

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b