Analysis

  • max time kernel
    127s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2022 20:06

General

  • Target

    bdcedbdf02b51d0b53e116edda0d39155d7c5d4374bfc5a8b9d7bbf1a6664b88.exe

  • Size

    749KB

  • MD5

    829698894b4a13b4a683f97301b0f682

  • SHA1

    353513afd1d98071ebe6090cb4b793e30422a2c3

  • SHA256

    bdcedbdf02b51d0b53e116edda0d39155d7c5d4374bfc5a8b9d7bbf1a6664b88

  • SHA512

    8500418d814d1cc145492c73a82b3a247f83fb6a89a3c6506fe925107795c1060038636e58b55e47f196ae1e07b851e4f99cb5a733bfdbe4d574b31a323aea5b

  • SSDEEP

    12288:g72bntEL772bntELDRFj47+572bntEL772bntELDRFj47+HDn0:g72ze72z2Ky72ze72z2K80

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\bdcedbdf02b51d0b53e116edda0d39155d7c5d4374bfc5a8b9d7bbf1a6664b88.exe
    "C:\Users\Admin\AppData\Local\Temp\bdcedbdf02b51d0b53e116edda0d39155d7c5d4374bfc5a8b9d7bbf1a6664b88.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:4788
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:1624
    • 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:1940
      • 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:1224
      • 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:4052
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4176
        • 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:1348
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4332
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4944
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3712
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:636
    • 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:4784
      • 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:3148
        • 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:3540
        • 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:2352
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:5084
          • 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:2940
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4976
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3756
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2916
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3560
      • 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:1380
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3204

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      749KB

      MD5

      3ea1a61012ee1579f7bf5adae38bd0f3

      SHA1

      aef1897811f45afaa3c67c6489eee4ed5f48e051

      SHA256

      a59fac89da4c7847743adb398faf9e1eea038fc6a6627fb878bc00d0ced8fce5

      SHA512

      bf5f364e1bfe692ed2908b57e9f9267f83b93e9e8cab53c7ebda3966f7fd333576ee0c8289b9c9650c2bb9734ce4eaca9ca637f8e534758880c2db018a7d2a00

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

      Filesize

      749KB

      MD5

      3ea1a61012ee1579f7bf5adae38bd0f3

      SHA1

      aef1897811f45afaa3c67c6489eee4ed5f48e051

      SHA256

      a59fac89da4c7847743adb398faf9e1eea038fc6a6627fb878bc00d0ced8fce5

      SHA512

      bf5f364e1bfe692ed2908b57e9f9267f83b93e9e8cab53c7ebda3966f7fd333576ee0c8289b9c9650c2bb9734ce4eaca9ca637f8e534758880c2db018a7d2a00

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

      Filesize

      749KB

      MD5

      3ea1a61012ee1579f7bf5adae38bd0f3

      SHA1

      aef1897811f45afaa3c67c6489eee4ed5f48e051

      SHA256

      a59fac89da4c7847743adb398faf9e1eea038fc6a6627fb878bc00d0ced8fce5

      SHA512

      bf5f364e1bfe692ed2908b57e9f9267f83b93e9e8cab53c7ebda3966f7fd333576ee0c8289b9c9650c2bb9734ce4eaca9ca637f8e534758880c2db018a7d2a00

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

      Filesize

      749KB

      MD5

      3ea1a61012ee1579f7bf5adae38bd0f3

      SHA1

      aef1897811f45afaa3c67c6489eee4ed5f48e051

      SHA256

      a59fac89da4c7847743adb398faf9e1eea038fc6a6627fb878bc00d0ced8fce5

      SHA512

      bf5f364e1bfe692ed2908b57e9f9267f83b93e9e8cab53c7ebda3966f7fd333576ee0c8289b9c9650c2bb9734ce4eaca9ca637f8e534758880c2db018a7d2a00

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      0e0483d4802632100b6bfe8bc2e5d661

      SHA1

      767e0deb7dcaa7676004e6053957c36cecfeeefa

      SHA256

      81bbebb8d0e77ffffbc7b7d24afdcdce4089f4b04d1a12284eda861c25e03f9f

      SHA512

      8279b0559ca30a0adc6c8614870c3e445866c20f0617a7153cab41982b451dfe9ea44478f37b884465235714623ef26a56f5ea3d1cb81767487c494d3703ab29

    • C:\Windows\hosts.exe

      Filesize

      749KB

      MD5

      8feae7e6cdcec727f184b1a19edef034

      SHA1

      c86e8c4fcea41294d99803002520104738757706

      SHA256

      41fe91a27202a338e5553e85552f7899b41612f66cc84e342dbed1c70431dbc1

      SHA512

      02fb90be50163f0f5518b8154cb92e56c5a552f3cd777dca1e3028af2eb0ad411c10f0fdb4999fd02979374abc8d9a37715fba7ac00cf8a7eab693b581dc4b87

    • C:\Windows\hosts.exe

      Filesize

      749KB

      MD5

      8feae7e6cdcec727f184b1a19edef034

      SHA1

      c86e8c4fcea41294d99803002520104738757706

      SHA256

      41fe91a27202a338e5553e85552f7899b41612f66cc84e342dbed1c70431dbc1

      SHA512

      02fb90be50163f0f5518b8154cb92e56c5a552f3cd777dca1e3028af2eb0ad411c10f0fdb4999fd02979374abc8d9a37715fba7ac00cf8a7eab693b581dc4b87

    • C:\Windows\hosts.exe

      Filesize

      749KB

      MD5

      8feae7e6cdcec727f184b1a19edef034

      SHA1

      c86e8c4fcea41294d99803002520104738757706

      SHA256

      41fe91a27202a338e5553e85552f7899b41612f66cc84e342dbed1c70431dbc1

      SHA512

      02fb90be50163f0f5518b8154cb92e56c5a552f3cd777dca1e3028af2eb0ad411c10f0fdb4999fd02979374abc8d9a37715fba7ac00cf8a7eab693b581dc4b87

    • C:\Windows\hosts.exe

      Filesize

      749KB

      MD5

      8feae7e6cdcec727f184b1a19edef034

      SHA1

      c86e8c4fcea41294d99803002520104738757706

      SHA256

      41fe91a27202a338e5553e85552f7899b41612f66cc84e342dbed1c70431dbc1

      SHA512

      02fb90be50163f0f5518b8154cb92e56c5a552f3cd777dca1e3028af2eb0ad411c10f0fdb4999fd02979374abc8d9a37715fba7ac00cf8a7eab693b581dc4b87

    • C:\windows\hosts.exe

      Filesize

      749KB

      MD5

      8feae7e6cdcec727f184b1a19edef034

      SHA1

      c86e8c4fcea41294d99803002520104738757706

      SHA256

      41fe91a27202a338e5553e85552f7899b41612f66cc84e342dbed1c70431dbc1

      SHA512

      02fb90be50163f0f5518b8154cb92e56c5a552f3cd777dca1e3028af2eb0ad411c10f0fdb4999fd02979374abc8d9a37715fba7ac00cf8a7eab693b581dc4b87

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b