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Analysis

  • max time kernel
    127s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2022, 06:42

General

  • Target

    32c98cfa5a760d583aa65d4ed1ad2e1f5d0faf0098a20a4881fde3eba7bba8ee.exe

  • Size

    277KB

  • MD5

    51df6c86fbfd306188018609adba4068

  • SHA1

    6169ea83c701474374f08be9220e8a16fb628386

  • SHA256

    32c98cfa5a760d583aa65d4ed1ad2e1f5d0faf0098a20a4881fde3eba7bba8ee

  • SHA512

    60ef0f212ff87b1fd2284e860360d746d410dcfa052d168babc867712d9d0ca2fb8fe5583118b5e29ff372e34dd1e501be24fa31fc112cb3c61bbf485e7d2c9f

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCmp+Mm1tfYBDjJFdrRlow2sRxDZc91HvHaHv:gDCwfG1bnxM1SF9FdbokZcvHm

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\32c98cfa5a760d583aa65d4ed1ad2e1f5d0faf0098a20a4881fde3eba7bba8ee.exe
    "C:\Users\Admin\AppData\Local\Temp\32c98cfa5a760d583aa65d4ed1ad2e1f5d0faf0098a20a4881fde3eba7bba8ee.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:4768
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4460
    • 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:4928
      • 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:652
      • 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:2828
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:220
        • 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:4200
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:420
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3024
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1000
    • 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:1452
      • 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:2388
        • 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:1524
        • 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:3168
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:524
          • 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:784
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3632
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:3276
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:2508
      • 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:4740
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2624

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      277KB

      MD5

      5d6c608fb4d62c8a808a8d4b2b8abefd

      SHA1

      671a4a0219b76362150f92a34b0956d6bff45736

      SHA256

      2a305f131a10ff533de79d4602a77ede7f8e72585bf889c6c96e5e5b98bf74a1

      SHA512

      cbad9003cc8dad3853204fdd320814947d4e82e43356b4b1980fce3148210418fde1e6ab6fb6db19c9c0007a2fb6706fe20ef6dd4c08b8add79f7d69e4057beb

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

      Filesize

      277KB

      MD5

      5d6c608fb4d62c8a808a8d4b2b8abefd

      SHA1

      671a4a0219b76362150f92a34b0956d6bff45736

      SHA256

      2a305f131a10ff533de79d4602a77ede7f8e72585bf889c6c96e5e5b98bf74a1

      SHA512

      cbad9003cc8dad3853204fdd320814947d4e82e43356b4b1980fce3148210418fde1e6ab6fb6db19c9c0007a2fb6706fe20ef6dd4c08b8add79f7d69e4057beb

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

      Filesize

      277KB

      MD5

      5d6c608fb4d62c8a808a8d4b2b8abefd

      SHA1

      671a4a0219b76362150f92a34b0956d6bff45736

      SHA256

      2a305f131a10ff533de79d4602a77ede7f8e72585bf889c6c96e5e5b98bf74a1

      SHA512

      cbad9003cc8dad3853204fdd320814947d4e82e43356b4b1980fce3148210418fde1e6ab6fb6db19c9c0007a2fb6706fe20ef6dd4c08b8add79f7d69e4057beb

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

      Filesize

      277KB

      MD5

      5d6c608fb4d62c8a808a8d4b2b8abefd

      SHA1

      671a4a0219b76362150f92a34b0956d6bff45736

      SHA256

      2a305f131a10ff533de79d4602a77ede7f8e72585bf889c6c96e5e5b98bf74a1

      SHA512

      cbad9003cc8dad3853204fdd320814947d4e82e43356b4b1980fce3148210418fde1e6ab6fb6db19c9c0007a2fb6706fe20ef6dd4c08b8add79f7d69e4057beb

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      c35f93e634b81f2cb003c72a1fb9d1f2

      SHA1

      9b6c533eebab7958e9e167ab93a412d5411c7a89

      SHA256

      6afae199db9be5b7c4c5dac778ec8c45051666d11f93dd93c1700beb20e1136f

      SHA512

      5cc512763da54bc66ffff42e02dc28ad9cda03e46a8b9181425c619815fb7c7afe3a71fc73742e151e26de7a21ade101e59d6853fe70b7d99ea93195325c010d

    • C:\Windows\hosts.exe

      Filesize

      277KB

      MD5

      a926b51f8f71a07e17af3fd7aa0f0cd0

      SHA1

      05b1a3faccda80d726add1b5ce4e230c9ec849ca

      SHA256

      80eb4ac7f2a124a4d96fd83ef9abe46ffd1ef7bd35286f6e4980d227890a7f40

      SHA512

      2c266e39113a1fabc6b64c70f5b895ebfd70286127160da3d4c960cd9d58575bdc0cff83747002daeb18d95f07b3f187c873559a8dcaf3ec5ff5ed55b3be339e

    • C:\Windows\hosts.exe

      Filesize

      277KB

      MD5

      a926b51f8f71a07e17af3fd7aa0f0cd0

      SHA1

      05b1a3faccda80d726add1b5ce4e230c9ec849ca

      SHA256

      80eb4ac7f2a124a4d96fd83ef9abe46ffd1ef7bd35286f6e4980d227890a7f40

      SHA512

      2c266e39113a1fabc6b64c70f5b895ebfd70286127160da3d4c960cd9d58575bdc0cff83747002daeb18d95f07b3f187c873559a8dcaf3ec5ff5ed55b3be339e

    • C:\Windows\hosts.exe

      Filesize

      277KB

      MD5

      a926b51f8f71a07e17af3fd7aa0f0cd0

      SHA1

      05b1a3faccda80d726add1b5ce4e230c9ec849ca

      SHA256

      80eb4ac7f2a124a4d96fd83ef9abe46ffd1ef7bd35286f6e4980d227890a7f40

      SHA512

      2c266e39113a1fabc6b64c70f5b895ebfd70286127160da3d4c960cd9d58575bdc0cff83747002daeb18d95f07b3f187c873559a8dcaf3ec5ff5ed55b3be339e

    • C:\Windows\hosts.exe

      Filesize

      277KB

      MD5

      a926b51f8f71a07e17af3fd7aa0f0cd0

      SHA1

      05b1a3faccda80d726add1b5ce4e230c9ec849ca

      SHA256

      80eb4ac7f2a124a4d96fd83ef9abe46ffd1ef7bd35286f6e4980d227890a7f40

      SHA512

      2c266e39113a1fabc6b64c70f5b895ebfd70286127160da3d4c960cd9d58575bdc0cff83747002daeb18d95f07b3f187c873559a8dcaf3ec5ff5ed55b3be339e

    • C:\windows\hosts.exe

      Filesize

      277KB

      MD5

      a926b51f8f71a07e17af3fd7aa0f0cd0

      SHA1

      05b1a3faccda80d726add1b5ce4e230c9ec849ca

      SHA256

      80eb4ac7f2a124a4d96fd83ef9abe46ffd1ef7bd35286f6e4980d227890a7f40

      SHA512

      2c266e39113a1fabc6b64c70f5b895ebfd70286127160da3d4c960cd9d58575bdc0cff83747002daeb18d95f07b3f187c873559a8dcaf3ec5ff5ed55b3be339e

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b