Analysis

  • max time kernel
    131s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 17:07

General

  • Target

    6ad1498e5c8bdb678c7d0e566d8ff04f8972582db091647effd82b6e59fff5ca.exe

  • Size

    169KB

  • MD5

    4790f5e2d604ff6548a6959eb144cab3

  • SHA1

    b113e02b6765be623323ffcfc98f62ac510232d4

  • SHA256

    6ad1498e5c8bdb678c7d0e566d8ff04f8972582db091647effd82b6e59fff5ca

  • SHA512

    1d2d90c40515217f87a40e7bdcbb9498e92a7c0d3433432bf970f75d2e54211abbb320617fc6fe57e2e50f898fb79e678a84bbaa6cb0e9c4ba25471ce6da0d3a

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCmzy8Jmky8JI3W:gDCwfG1bnxG8M58CW

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\6ad1498e5c8bdb678c7d0e566d8ff04f8972582db091647effd82b6e59fff5ca.exe
    "C:\Users\Admin\AppData\Local\Temp\6ad1498e5c8bdb678c7d0e566d8ff04f8972582db091647effd82b6e59fff5ca.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:4584
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:3428
    • 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:4988
      • 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:4048
      • 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:4932
        • 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:2716
          • 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:5040
          • 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:3544
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:228
            • 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:380
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3128
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3096
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4288
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4016
        • 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:3232
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2504
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4656
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1612
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2840
    • 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:4964
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3740
      • 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:2152
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4752

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      170KB

      MD5

      ee34c6df5a793e18309e64dab5dfa43d

      SHA1

      48b00239804aba42dec177a6a7bfdac41c526634

      SHA256

      15fa9db3d5922ae64ca27990c8f345acbad2b8b857cf4245a0f166ef0609854b

      SHA512

      aafd1f3396f1ac1486e2c114d397848240f0d6e047f870f6f2cd1fe1378a34aa83ff282685b4e4de44d27a9c0b0f3837561ab938f5ccff41b3780815d855da16

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

      Filesize

      170KB

      MD5

      ee34c6df5a793e18309e64dab5dfa43d

      SHA1

      48b00239804aba42dec177a6a7bfdac41c526634

      SHA256

      15fa9db3d5922ae64ca27990c8f345acbad2b8b857cf4245a0f166ef0609854b

      SHA512

      aafd1f3396f1ac1486e2c114d397848240f0d6e047f870f6f2cd1fe1378a34aa83ff282685b4e4de44d27a9c0b0f3837561ab938f5ccff41b3780815d855da16

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

      Filesize

      170KB

      MD5

      ee34c6df5a793e18309e64dab5dfa43d

      SHA1

      48b00239804aba42dec177a6a7bfdac41c526634

      SHA256

      15fa9db3d5922ae64ca27990c8f345acbad2b8b857cf4245a0f166ef0609854b

      SHA512

      aafd1f3396f1ac1486e2c114d397848240f0d6e047f870f6f2cd1fe1378a34aa83ff282685b4e4de44d27a9c0b0f3837561ab938f5ccff41b3780815d855da16

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

      Filesize

      170KB

      MD5

      ee34c6df5a793e18309e64dab5dfa43d

      SHA1

      48b00239804aba42dec177a6a7bfdac41c526634

      SHA256

      15fa9db3d5922ae64ca27990c8f345acbad2b8b857cf4245a0f166ef0609854b

      SHA512

      aafd1f3396f1ac1486e2c114d397848240f0d6e047f870f6f2cd1fe1378a34aa83ff282685b4e4de44d27a9c0b0f3837561ab938f5ccff41b3780815d855da16

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      7fc0db81060e343fd209dc050b401f77

      SHA1

      08ce8975b023bf90c21b8e64cd54fdd39debce04

      SHA256

      4a21d378652d4291a6b9e88a1934ac51e9eccd5c9a42aa09076219301509367f

      SHA512

      e0d13ba3713707f7cb9be56240930a8f47d8c302e692b49dcb01f7bdf3e3475f829e1ead60ce6a5f98bed591be96456e9c3ef67bb27f88dc70343c1412e9de57

    • C:\Windows\hosts.exe

      Filesize

      170KB

      MD5

      013b019056d5037eb3e991d83ebb7eeb

      SHA1

      9b19ce39c07f6efd9d4f0a58c75cbac24e48013a

      SHA256

      7749aeb0129755536766b4334f59aa72aa42db06d14cf1f599bc5d5f4d0e53ea

      SHA512

      96c77a8e32c66b9bdb712100b4ba582b65a077ac2b8640c9b26bed0ff04fa6c2bfd86321af2bdc7b3b49621f40e8255e8543a1ddb05df257fcb0fa4bcc9602ba

    • C:\Windows\hosts.exe

      Filesize

      170KB

      MD5

      013b019056d5037eb3e991d83ebb7eeb

      SHA1

      9b19ce39c07f6efd9d4f0a58c75cbac24e48013a

      SHA256

      7749aeb0129755536766b4334f59aa72aa42db06d14cf1f599bc5d5f4d0e53ea

      SHA512

      96c77a8e32c66b9bdb712100b4ba582b65a077ac2b8640c9b26bed0ff04fa6c2bfd86321af2bdc7b3b49621f40e8255e8543a1ddb05df257fcb0fa4bcc9602ba

    • C:\Windows\hosts.exe

      Filesize

      170KB

      MD5

      013b019056d5037eb3e991d83ebb7eeb

      SHA1

      9b19ce39c07f6efd9d4f0a58c75cbac24e48013a

      SHA256

      7749aeb0129755536766b4334f59aa72aa42db06d14cf1f599bc5d5f4d0e53ea

      SHA512

      96c77a8e32c66b9bdb712100b4ba582b65a077ac2b8640c9b26bed0ff04fa6c2bfd86321af2bdc7b3b49621f40e8255e8543a1ddb05df257fcb0fa4bcc9602ba

    • C:\Windows\hosts.exe

      Filesize

      170KB

      MD5

      013b019056d5037eb3e991d83ebb7eeb

      SHA1

      9b19ce39c07f6efd9d4f0a58c75cbac24e48013a

      SHA256

      7749aeb0129755536766b4334f59aa72aa42db06d14cf1f599bc5d5f4d0e53ea

      SHA512

      96c77a8e32c66b9bdb712100b4ba582b65a077ac2b8640c9b26bed0ff04fa6c2bfd86321af2bdc7b3b49621f40e8255e8543a1ddb05df257fcb0fa4bcc9602ba

    • C:\windows\hosts.exe

      Filesize

      170KB

      MD5

      013b019056d5037eb3e991d83ebb7eeb

      SHA1

      9b19ce39c07f6efd9d4f0a58c75cbac24e48013a

      SHA256

      7749aeb0129755536766b4334f59aa72aa42db06d14cf1f599bc5d5f4d0e53ea

      SHA512

      96c77a8e32c66b9bdb712100b4ba582b65a077ac2b8640c9b26bed0ff04fa6c2bfd86321af2bdc7b3b49621f40e8255e8543a1ddb05df257fcb0fa4bcc9602ba

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b

    • memory/228-162-0x0000000000000000-mapping.dmp

    • memory/380-169-0x0000000000000000-mapping.dmp

    • memory/1612-174-0x0000000000000000-mapping.dmp

    • memory/2152-167-0x0000000000000000-mapping.dmp

    • memory/2504-170-0x0000000000000000-mapping.dmp

    • memory/2716-149-0x0000000000000000-mapping.dmp

    • memory/2840-176-0x0000000000000000-mapping.dmp

    • memory/3096-173-0x0000000000000000-mapping.dmp

    • memory/3128-171-0x0000000000000000-mapping.dmp

    • memory/3232-168-0x0000000000000000-mapping.dmp

    • memory/3428-134-0x0000000000000000-mapping.dmp

    • memory/3544-161-0x0000000000000000-mapping.dmp

    • memory/3740-148-0x0000000000000000-mapping.dmp

    • memory/4016-177-0x0000000000000000-mapping.dmp

    • memory/4048-141-0x0000000000000000-mapping.dmp

    • memory/4288-175-0x0000000000000000-mapping.dmp

    • memory/4656-172-0x0000000000000000-mapping.dmp

    • memory/4932-145-0x0000000000000000-mapping.dmp

    • memory/4964-146-0x0000000000000000-mapping.dmp

    • memory/4988-135-0x0000000000000000-mapping.dmp

    • memory/5040-157-0x0000000000000000-mapping.dmp