Analysis

  • max time kernel
    124s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 23:18

General

  • Target

    ff2313e885a32218c9dd0130d425e6cc1fe6b97dd8a310fc9254587ab7c1cab7.exe

  • Size

    396KB

  • MD5

    ec33e4311c03637d2a1259874d9005ed

  • SHA1

    27641285e02f073c4c1e19c081435179e8cbc0a9

  • SHA256

    ff2313e885a32218c9dd0130d425e6cc1fe6b97dd8a310fc9254587ab7c1cab7

  • SHA512

    8c3cd27e04832f4d20794d59a1ed7db1b2113b3a9c954346e77466fa33540fb9f0563066c8d3ca2c6ec883a551267ea2151c90adf9b359a6d0ab5b9d2507ba83

  • SSDEEP

    6144:gDCwfG1bnxLEDuG14dDCwfG1bnxLEDuG143XK:g72bntEDuG1A72bntEDuG1r

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\ff2313e885a32218c9dd0130d425e6cc1fe6b97dd8a310fc9254587ab7c1cab7.exe
    "C:\Users\Admin\AppData\Local\Temp\ff2313e885a32218c9dd0130d425e6cc1fe6b97dd8a310fc9254587ab7c1cab7.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:4928
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2920
    • 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:1672
      • 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:2368
      • 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:2300
        • 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:2240
          • 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:240
          • 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:4596
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:4688
            • 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:3888
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:668
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3484
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4276
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2292
        • 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:1176
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4464
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1840
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2144
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2312
    • 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:632
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3480
      • 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:2860
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4976

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      396KB

      MD5

      5e97b07c4060023385502ee18afdea83

      SHA1

      ca227c80dd3d446dfc5c183c22315cbc50859781

      SHA256

      3a596f92253322537dc3b66f9e6c38c1a58db6d760d9e28104820cbda5d15890

      SHA512

      d8518ec4ef71b58d0d442b4f18d6eb97dcdccc0496b36815555fe9133623aa07148a647995bb7055c9bbaa350989bfa6a33c826adb70ee18b608b1b74a79ce1e

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

      Filesize

      396KB

      MD5

      5e97b07c4060023385502ee18afdea83

      SHA1

      ca227c80dd3d446dfc5c183c22315cbc50859781

      SHA256

      3a596f92253322537dc3b66f9e6c38c1a58db6d760d9e28104820cbda5d15890

      SHA512

      d8518ec4ef71b58d0d442b4f18d6eb97dcdccc0496b36815555fe9133623aa07148a647995bb7055c9bbaa350989bfa6a33c826adb70ee18b608b1b74a79ce1e

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

      Filesize

      396KB

      MD5

      5e97b07c4060023385502ee18afdea83

      SHA1

      ca227c80dd3d446dfc5c183c22315cbc50859781

      SHA256

      3a596f92253322537dc3b66f9e6c38c1a58db6d760d9e28104820cbda5d15890

      SHA512

      d8518ec4ef71b58d0d442b4f18d6eb97dcdccc0496b36815555fe9133623aa07148a647995bb7055c9bbaa350989bfa6a33c826adb70ee18b608b1b74a79ce1e

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

      Filesize

      396KB

      MD5

      5e97b07c4060023385502ee18afdea83

      SHA1

      ca227c80dd3d446dfc5c183c22315cbc50859781

      SHA256

      3a596f92253322537dc3b66f9e6c38c1a58db6d760d9e28104820cbda5d15890

      SHA512

      d8518ec4ef71b58d0d442b4f18d6eb97dcdccc0496b36815555fe9133623aa07148a647995bb7055c9bbaa350989bfa6a33c826adb70ee18b608b1b74a79ce1e

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      0e0483d4802632100b6bfe8bc2e5d661

      SHA1

      767e0deb7dcaa7676004e6053957c36cecfeeefa

      SHA256

      81bbebb8d0e77ffffbc7b7d24afdcdce4089f4b04d1a12284eda861c25e03f9f

      SHA512

      8279b0559ca30a0adc6c8614870c3e445866c20f0617a7153cab41982b451dfe9ea44478f37b884465235714623ef26a56f5ea3d1cb81767487c494d3703ab29

    • C:\Windows\hosts.exe

      Filesize

      396KB

      MD5

      ab1cdd7ffe2ff3f148a11fd76f7465fa

      SHA1

      c28729798b108cd25143e0f2af1004894c76015f

      SHA256

      e782446ed62038da7e3b0a75f3e534348507b4dc4408123ad697b4b937968b25

      SHA512

      e59afb8720ca8cf5c4042997306946aaa2bd84defc7c6f09ca9d06e3035e3f44b46e57ca8d19182e032fb01465431d63df2eb144a4bbff5e96404731acc9eb32

    • C:\Windows\hosts.exe

      Filesize

      396KB

      MD5

      ab1cdd7ffe2ff3f148a11fd76f7465fa

      SHA1

      c28729798b108cd25143e0f2af1004894c76015f

      SHA256

      e782446ed62038da7e3b0a75f3e534348507b4dc4408123ad697b4b937968b25

      SHA512

      e59afb8720ca8cf5c4042997306946aaa2bd84defc7c6f09ca9d06e3035e3f44b46e57ca8d19182e032fb01465431d63df2eb144a4bbff5e96404731acc9eb32

    • C:\Windows\hosts.exe

      Filesize

      396KB

      MD5

      ab1cdd7ffe2ff3f148a11fd76f7465fa

      SHA1

      c28729798b108cd25143e0f2af1004894c76015f

      SHA256

      e782446ed62038da7e3b0a75f3e534348507b4dc4408123ad697b4b937968b25

      SHA512

      e59afb8720ca8cf5c4042997306946aaa2bd84defc7c6f09ca9d06e3035e3f44b46e57ca8d19182e032fb01465431d63df2eb144a4bbff5e96404731acc9eb32

    • C:\Windows\hosts.exe

      Filesize

      396KB

      MD5

      ab1cdd7ffe2ff3f148a11fd76f7465fa

      SHA1

      c28729798b108cd25143e0f2af1004894c76015f

      SHA256

      e782446ed62038da7e3b0a75f3e534348507b4dc4408123ad697b4b937968b25

      SHA512

      e59afb8720ca8cf5c4042997306946aaa2bd84defc7c6f09ca9d06e3035e3f44b46e57ca8d19182e032fb01465431d63df2eb144a4bbff5e96404731acc9eb32

    • C:\windows\hosts.exe

      Filesize

      396KB

      MD5

      ab1cdd7ffe2ff3f148a11fd76f7465fa

      SHA1

      c28729798b108cd25143e0f2af1004894c76015f

      SHA256

      e782446ed62038da7e3b0a75f3e534348507b4dc4408123ad697b4b937968b25

      SHA512

      e59afb8720ca8cf5c4042997306946aaa2bd84defc7c6f09ca9d06e3035e3f44b46e57ca8d19182e032fb01465431d63df2eb144a4bbff5e96404731acc9eb32

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b