Analysis

  • max time kernel
    142s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 04:25

General

  • Target
    abe29190d3ff4371f25249cdcbc3cfc1434b7db9d3d0bb4428f321f0a03cc679.exe
  • Size 2.6MB
  • Sample221124-e118xacb81
  • SHA256 abe29190d3ff4371f25249cdcbc3cfc1434b7db9d3d0bb4428f321f0a03cc679
  • MD5 SHA1 SHA512 SSDEEP
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
  • Loads dropped DLL 5 IoCs
  • 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 key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\abe29190d3ff4371f25249cdcbc3cfc1434b7db9d3d0bb4428f321f0a03cc679.exe
    "C:\Users\Admin\AppData\Local\Temp\abe29190d3ff4371f25249cdcbc3cfc1434b7db9d3d0bb4428f321f0a03cc679.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:336
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:1648
    • 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
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1764
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        PID:536
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c c:\windows\W_X_C.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1456
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:1808
        • 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:1896
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:952
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1188
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1760
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1996
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c c:\windows\W_X_C.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:568
      • 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
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1576
        • 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:748
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c c:\windows\W_X_C.bat
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1100
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:1516
          • 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:1724
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1544
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:432
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1428
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:568
      • 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:1692

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        Admin.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\Admin.bmp
        • Size 5.3MB
        • SHA256 cb5e7852aa5368b2ff28b0ab6b22c2bfd91e91d43c022fed1f26cdf906b2685f
        • MD5 SHA1 SHA512 SSDEEP

        Admin.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\Admin.bmp
        • Size 8.0MB
        • SHA256 439effd26401e386085d0c52793b103581feafdefebf231001480e386d101293
        • MD5 SHA1 SHA512 SSDEEP

        Admin.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\Admin.bmp
        • Size 10.6MB
        • SHA256 6ffa42300674fd2b9b48da21c21ecfb137d12b751e371b6c4b88561c2103cc0d
        • MD5 SHA1 SHA512 SSDEEP

        Admin.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\Admin.bmp
        • Size 13.2MB
        • SHA256 d5622bea212113004c9a12956521c1d299b1e9007f0c80a9008ee1e63bc748c1
        • MD5 SHA1 SHA512 SSDEEP

        Admin.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\Admin.bmp
        • Size 15.9MB
        • SHA256 ea912f0ccd89f1dbb6b71bf3fff4783be5d37aa9b11011980a8e46aeccce8ebe
        • MD5 SHA1 SHA512 SSDEEP

        Admin.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\Admin.bmp
        • Size 18.5MB
        • SHA256 fa5adc1b57b47b8834809dc78db2957b56e91dfcd7c88b85f9f95769eae7b09c
        • MD5 SHA1 SHA512 SSDEEP

        Admin.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\Admin.bmp
        • Size 21.2MB
        • SHA256 8f10c662020e3c3c02c418bd238321992331c20348232795981d7ca4442122eb
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path C:\Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path C:\Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path C:\Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path C:\Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        W_X_C.vbs

        • Path C:\Windows\W_X_C.vbs
        • Size 195B
        • SHA256 71a89829e758fce2196f5ae1fce0af4110c85b65f1cacbd9d34394843a0e9563
        • MD5 SHA1 SHA512

        hosts.exe

        • Path C:\Windows\hosts.exe
        • Size 2.6MB
        • SHA256 6b3de0b504df27f0d60364973f800a14163937d4a71b6b3ca722aa395327939f
        • MD5 SHA1 SHA512 SSDEEP

        hosts.exe

        • Path C:\Windows\hosts.exe
        • Size 2.6MB
        • SHA256 6b3de0b504df27f0d60364973f800a14163937d4a71b6b3ca722aa395327939f
        • MD5 SHA1 SHA512 SSDEEP

        hosts.exe

        • Path C:\Windows\hosts.exe
        • Size 2.6MB
        • SHA256 6b3de0b504df27f0d60364973f800a14163937d4a71b6b3ca722aa395327939f
        • MD5 SHA1 SHA512 SSDEEP

        hosts.exe

        • Path C:\Windows\hosts.exe
        • Size 2.6MB
        • SHA256 6b3de0b504df27f0d60364973f800a14163937d4a71b6b3ca722aa395327939f
        • MD5 SHA1 SHA512 SSDEEP

        hosts.exe

        • Path C:\windows\hosts.exe
        • Size 2.6MB
        • SHA256 6b3de0b504df27f0d60364973f800a14163937d4a71b6b3ca722aa395327939f
        • MD5 SHA1 SHA512 SSDEEP

        W_X_C.bat

        • Path \??\c:\windows\W_X_C.bat
        • Size 336B
        • SHA256 d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78
        • MD5 SHA1 SHA512

        avscan.exe

        • Path \Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path \Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path \Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path \Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        avscan.exe

        • Path \Users\Admin\AppData\Local\Temp\avscan.exe
        • Size 2.6MB
        • SHA256 950573a82fb16c9af33283d23e5cb24d393a0e66baa6d123516b5fa44e94fc5b
        • MD5 SHA1 SHA512 SSDEEP

        memory/336-58-0x0000000074721000-0x0000000074723000-memory.dmp

        memory/336-56-0x0000000075BE1000-0x0000000075BE3000-memory.dmp