Analysis

  • max time kernel
    190s
  • max time network
    210s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 21:55

General

  • Target

    c1da29ce2cfa6e74ae682affb4e91b5d147c5b31edabf5cbb5248ecb5c50b9e4.exe

  • Size

    852KB

  • MD5

    e331cdb066e98f0cbff4990f29e73c2d

  • SHA1

    3457b3edc567271a2a87367349a168fa1fcde1be

  • SHA256

    c1da29ce2cfa6e74ae682affb4e91b5d147c5b31edabf5cbb5248ecb5c50b9e4

  • SHA512

    09a76247885d8850e4e3db07a16862e03ad177e24adccc141adabed504d6158a84a2df3b2db610bd82f8075912afcf824d87e504d31e53905e562aed7abce38f

  • SSDEEP

    12288:g72bnI+w8GNA72bnI+w8GNPg72bnI+w8GNA72bnI+w8GNPbo:g72zd72zsg72zd72zsbo

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 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1da29ce2cfa6e74ae682affb4e91b5d147c5b31edabf5cbb5248ecb5c50b9e4.exe
    "C:\Users\Admin\AppData\Local\Temp\c1da29ce2cfa6e74ae682affb4e91b5d147c5b31edabf5cbb5248ecb5c50b9e4.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:2020
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:3720
    • 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:3476
      • 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:3884
      • 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:3932
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2168
        • 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:2292
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1584
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3228
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3240
    • 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:3132
      • 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:3988
        • 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:1824
        • 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:4620
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2096
          • 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:4648
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2860
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:408
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:456
      • 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:4296
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3212

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      852KB

      MD5

      332f11c2474a6dbbc008245396eed463

      SHA1

      524cbfe0e406d0303a65bcee7e0869da3c6dab3e

      SHA256

      9a938ad93f27b8bcdeef507a39fb70fd83e75e3dbffeb3c446f0a379c47e35ac

      SHA512

      da705228fd608676b75bbe61fc70f8e41627fd0250ae9ee07e8c5fbdc2fee05bbda5a711b4c7c6cc503aa4fc797db1badf3bd3fe327ca6571a013948f5855efa

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

      Filesize

      852KB

      MD5

      332f11c2474a6dbbc008245396eed463

      SHA1

      524cbfe0e406d0303a65bcee7e0869da3c6dab3e

      SHA256

      9a938ad93f27b8bcdeef507a39fb70fd83e75e3dbffeb3c446f0a379c47e35ac

      SHA512

      da705228fd608676b75bbe61fc70f8e41627fd0250ae9ee07e8c5fbdc2fee05bbda5a711b4c7c6cc503aa4fc797db1badf3bd3fe327ca6571a013948f5855efa

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

      Filesize

      852KB

      MD5

      332f11c2474a6dbbc008245396eed463

      SHA1

      524cbfe0e406d0303a65bcee7e0869da3c6dab3e

      SHA256

      9a938ad93f27b8bcdeef507a39fb70fd83e75e3dbffeb3c446f0a379c47e35ac

      SHA512

      da705228fd608676b75bbe61fc70f8e41627fd0250ae9ee07e8c5fbdc2fee05bbda5a711b4c7c6cc503aa4fc797db1badf3bd3fe327ca6571a013948f5855efa

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

      Filesize

      852KB

      MD5

      332f11c2474a6dbbc008245396eed463

      SHA1

      524cbfe0e406d0303a65bcee7e0869da3c6dab3e

      SHA256

      9a938ad93f27b8bcdeef507a39fb70fd83e75e3dbffeb3c446f0a379c47e35ac

      SHA512

      da705228fd608676b75bbe61fc70f8e41627fd0250ae9ee07e8c5fbdc2fee05bbda5a711b4c7c6cc503aa4fc797db1badf3bd3fe327ca6571a013948f5855efa

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      b53e5ef6d903f57c7c038b3d3d3db0cb

      SHA1

      57f5ec8ae3c79e86657ca29d4463ee475becf39b

      SHA256

      a04a3493a1c2d3d58fc9180512aed93cff63f94c2202f1ce9d62c1c7d82b8d0a

      SHA512

      603af007038ea2416d7616c38cf020d985f0498955e37c8270fd1b0c4fafa70b1e7c927a5d21d659717e2a6382bb7038711c6bf7a8b9ce1e1d2a9a3cf4a955cf

    • C:\Windows\hosts.exe

      Filesize

      852KB

      MD5

      ec94394865c69e5a2d3e54bbcdcf7346

      SHA1

      4c3cfe67ce5c400b6bfc09a5f059614e0c010bd8

      SHA256

      551e67664e5beb6d10408911617d926e119e61ea76f24f52320ded886ee80f21

      SHA512

      21397eb46d77e83e465d65b43e28c1fe7020f9cbd09bfceeb9fe5aa3161e889931ca92d1ee2c4c256a6a9dd45f5ad80e3af9598b77197301d28843350ee1eaaf

    • C:\Windows\hosts.exe

      Filesize

      852KB

      MD5

      ec94394865c69e5a2d3e54bbcdcf7346

      SHA1

      4c3cfe67ce5c400b6bfc09a5f059614e0c010bd8

      SHA256

      551e67664e5beb6d10408911617d926e119e61ea76f24f52320ded886ee80f21

      SHA512

      21397eb46d77e83e465d65b43e28c1fe7020f9cbd09bfceeb9fe5aa3161e889931ca92d1ee2c4c256a6a9dd45f5ad80e3af9598b77197301d28843350ee1eaaf

    • C:\Windows\hosts.exe

      Filesize

      852KB

      MD5

      ec94394865c69e5a2d3e54bbcdcf7346

      SHA1

      4c3cfe67ce5c400b6bfc09a5f059614e0c010bd8

      SHA256

      551e67664e5beb6d10408911617d926e119e61ea76f24f52320ded886ee80f21

      SHA512

      21397eb46d77e83e465d65b43e28c1fe7020f9cbd09bfceeb9fe5aa3161e889931ca92d1ee2c4c256a6a9dd45f5ad80e3af9598b77197301d28843350ee1eaaf

    • C:\Windows\hosts.exe

      Filesize

      852KB

      MD5

      ec94394865c69e5a2d3e54bbcdcf7346

      SHA1

      4c3cfe67ce5c400b6bfc09a5f059614e0c010bd8

      SHA256

      551e67664e5beb6d10408911617d926e119e61ea76f24f52320ded886ee80f21

      SHA512

      21397eb46d77e83e465d65b43e28c1fe7020f9cbd09bfceeb9fe5aa3161e889931ca92d1ee2c4c256a6a9dd45f5ad80e3af9598b77197301d28843350ee1eaaf

    • C:\windows\hosts.exe

      Filesize

      852KB

      MD5

      ec94394865c69e5a2d3e54bbcdcf7346

      SHA1

      4c3cfe67ce5c400b6bfc09a5f059614e0c010bd8

      SHA256

      551e67664e5beb6d10408911617d926e119e61ea76f24f52320ded886ee80f21

      SHA512

      21397eb46d77e83e465d65b43e28c1fe7020f9cbd09bfceeb9fe5aa3161e889931ca92d1ee2c4c256a6a9dd45f5ad80e3af9598b77197301d28843350ee1eaaf

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b