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Analysis

  • max time kernel
    154s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 23:23

General

  • Target

    5596cda6d24f5eb91523adb068e9940064746e2083d8f0fa2ef7ad15c72a1be0.exe

  • Size

    351KB

  • MD5

    682d1377fe7007fced29346b2365ec56

  • SHA1

    15b80c307ad86e2a1a275902bb64baa822c67155

  • SHA256

    5596cda6d24f5eb91523adb068e9940064746e2083d8f0fa2ef7ad15c72a1be0

  • SHA512

    2ec0a68e75854b6432923a061f53a847faaf620b40f537115d79496ca2f7f8f56d0efc2129c7d2c5ea9ed3270f8ba79b3ed35b4247d1e48eaa16ae23517dc11c

  • SSDEEP

    6144:gDCwfG1bnxMwslM0Yk55Qcpp5n+m9SDxqe:g72bnuwsO0YkTQyCDAe

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 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5596cda6d24f5eb91523adb068e9940064746e2083d8f0fa2ef7ad15c72a1be0.exe
    "C:\Users\Admin\AppData\Local\Temp\5596cda6d24f5eb91523adb068e9940064746e2083d8f0fa2ef7ad15c72a1be0.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:2476
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:1196
    • 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:3076
      • 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:4436
      • 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:4684
        • 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:4632
          • 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:60
          • 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:4164
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:4284
            • 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:3836
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4244
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3976
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:372
        • 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:3656
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4380
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3172
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2436
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4860
    • 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:1236
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4612
      • 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:3472
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3640

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      351KB

      MD5

      bf6923c68fbbfb85129fbb0dba4367f6

      SHA1

      285c25d7dbdaf708d3dd43b5dc20903567dc0b30

      SHA256

      6ae658828bc4d0f9a99007f89a5834370468c01b06c4b93512af052d3dd001b0

      SHA512

      5f3a80ba5a70f317d2510b9c207a9b0b0dbca035ccfdf00fd8fb3ed0c4556555baf4acc598e141f584dbb752bff90c9355f639cb082fddc973103d461f4a52a0

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

      Filesize

      351KB

      MD5

      bf6923c68fbbfb85129fbb0dba4367f6

      SHA1

      285c25d7dbdaf708d3dd43b5dc20903567dc0b30

      SHA256

      6ae658828bc4d0f9a99007f89a5834370468c01b06c4b93512af052d3dd001b0

      SHA512

      5f3a80ba5a70f317d2510b9c207a9b0b0dbca035ccfdf00fd8fb3ed0c4556555baf4acc598e141f584dbb752bff90c9355f639cb082fddc973103d461f4a52a0

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

      Filesize

      351KB

      MD5

      bf6923c68fbbfb85129fbb0dba4367f6

      SHA1

      285c25d7dbdaf708d3dd43b5dc20903567dc0b30

      SHA256

      6ae658828bc4d0f9a99007f89a5834370468c01b06c4b93512af052d3dd001b0

      SHA512

      5f3a80ba5a70f317d2510b9c207a9b0b0dbca035ccfdf00fd8fb3ed0c4556555baf4acc598e141f584dbb752bff90c9355f639cb082fddc973103d461f4a52a0

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

      Filesize

      351KB

      MD5

      bf6923c68fbbfb85129fbb0dba4367f6

      SHA1

      285c25d7dbdaf708d3dd43b5dc20903567dc0b30

      SHA256

      6ae658828bc4d0f9a99007f89a5834370468c01b06c4b93512af052d3dd001b0

      SHA512

      5f3a80ba5a70f317d2510b9c207a9b0b0dbca035ccfdf00fd8fb3ed0c4556555baf4acc598e141f584dbb752bff90c9355f639cb082fddc973103d461f4a52a0

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      c35f93e634b81f2cb003c72a1fb9d1f2

      SHA1

      9b6c533eebab7958e9e167ab93a412d5411c7a89

      SHA256

      6afae199db9be5b7c4c5dac778ec8c45051666d11f93dd93c1700beb20e1136f

      SHA512

      5cc512763da54bc66ffff42e02dc28ad9cda03e46a8b9181425c619815fb7c7afe3a71fc73742e151e26de7a21ade101e59d6853fe70b7d99ea93195325c010d

    • C:\Windows\hosts.exe

      Filesize

      351KB

      MD5

      996d8ddc575f19cf74dc970facba6ded

      SHA1

      b2c0f2c56c13de4d7468b538880f9440b709cbc2

      SHA256

      8ae5883b9af9db8a3a6a1e94b765891607e7ebae69226ed8f87e83b864fc66c6

      SHA512

      484a314aaa133cf213a901f5a89ae76a37d840506a0ee2023c53cd7639bc9817bec14bfff838575417fc46a75fe93e22223db784b29d651e21c7cb2f8367a465

    • C:\Windows\hosts.exe

      Filesize

      351KB

      MD5

      996d8ddc575f19cf74dc970facba6ded

      SHA1

      b2c0f2c56c13de4d7468b538880f9440b709cbc2

      SHA256

      8ae5883b9af9db8a3a6a1e94b765891607e7ebae69226ed8f87e83b864fc66c6

      SHA512

      484a314aaa133cf213a901f5a89ae76a37d840506a0ee2023c53cd7639bc9817bec14bfff838575417fc46a75fe93e22223db784b29d651e21c7cb2f8367a465

    • C:\Windows\hosts.exe

      Filesize

      351KB

      MD5

      996d8ddc575f19cf74dc970facba6ded

      SHA1

      b2c0f2c56c13de4d7468b538880f9440b709cbc2

      SHA256

      8ae5883b9af9db8a3a6a1e94b765891607e7ebae69226ed8f87e83b864fc66c6

      SHA512

      484a314aaa133cf213a901f5a89ae76a37d840506a0ee2023c53cd7639bc9817bec14bfff838575417fc46a75fe93e22223db784b29d651e21c7cb2f8367a465

    • C:\Windows\hosts.exe

      Filesize

      351KB

      MD5

      996d8ddc575f19cf74dc970facba6ded

      SHA1

      b2c0f2c56c13de4d7468b538880f9440b709cbc2

      SHA256

      8ae5883b9af9db8a3a6a1e94b765891607e7ebae69226ed8f87e83b864fc66c6

      SHA512

      484a314aaa133cf213a901f5a89ae76a37d840506a0ee2023c53cd7639bc9817bec14bfff838575417fc46a75fe93e22223db784b29d651e21c7cb2f8367a465

    • C:\windows\hosts.exe

      Filesize

      351KB

      MD5

      996d8ddc575f19cf74dc970facba6ded

      SHA1

      b2c0f2c56c13de4d7468b538880f9440b709cbc2

      SHA256

      8ae5883b9af9db8a3a6a1e94b765891607e7ebae69226ed8f87e83b864fc66c6

      SHA512

      484a314aaa133cf213a901f5a89ae76a37d840506a0ee2023c53cd7639bc9817bec14bfff838575417fc46a75fe93e22223db784b29d651e21c7cb2f8367a465

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b