Resubmissions

02/03/2024, 22:38

240302-2kwptaae3710

02/03/2024, 22:34

240302-2g86qsad9610

Analysis

  • max time kernel
    1793s
  • max time network
    1173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/03/2024, 22:38

General

  • Target
    Fake AV/AntivirusPlatinum.exe
  • Size 739KB
  • Sample240302-2kwptaae37
  • SHA256 70e5e902d0ac7534838b743c899f484fe10766aefacc6df697219387a8e3d06b
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Windows security bypass 2 TTPs 3 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 3 IoCs
  • Drops file in Windows directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 4 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Fake AV\AntivirusPlatinum.exe
    "C:\Users\Admin\AppData\Local\Temp\Fake AV\AntivirusPlatinum.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3848
    • C:\WINDOWS\302746537.exe
      "C:\WINDOWS\302746537.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3816
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\36A0.tmp\302746537.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:992
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s c:\windows\comctl32.ocx
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:3556
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s c:\windows\mscomctl.ocx
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:1604
        • \??\c:\windows\antivirus-platinum.exe
          c:\windows\antivirus-platinum.exe
          4⤵
          • Windows security bypass
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Loads dropped DLL
          • Windows security modification
          • Modifies Internet Explorer settings
          • Modifies Internet Explorer start page
          • Suspicious use of SetWindowsHookEx
          • System policy modification
          PID:2100
        • C:\Windows\SysWOW64\attrib.exe
          attrib +h c:\windows\antivirus-platinum.exe
          4⤵
          • Drops file in Windows directory
          • Views/modifies file attributes
          PID:2284

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        302746537.bat

        • Path C:\Users\Admin\AppData\Local\Temp\36A0.tmp\302746537.bat
        • Size 348B
        • SHA256 4aa9ed4b38514f117e6e4f326cb0a1be7f7b96199e21305e2bd6dce289d7baa2
        • MD5 SHA1 SHA512

        302746537.exe

        • Path C:\Windows\302746537.exe
        • Size 22KB
        • SHA256 3028a2b0e95143a4caa9bcd6ae794958e7469a20c6e673da067958cbf4310035
        • MD5 SHA1 SHA512 SSDEEP

        COMCTL32.OCX

        • Path C:\Windows\COMCTL32.OCX
        • Size 595KB
        • SHA256 f59cdf89f0f522ce3662e09fa847bca9b277b006c415dcc0029b416c347db9c4
        • MD5 SHA1 SHA512 SSDEEP

        antivirus-platinum.exe

        • Path C:\Windows\antivirus-platinum.exe
        • Size 9KB
        • SHA256 8115de4ad0b7e589852f521eb4260c127f8afeaa3b0021bfc98e4928a4929ac0
        • MD5 SHA1 SHA512 SSDEEP

        comctl32.ocx

        • Path \??\c:\windows\comctl32.ocx
        • Size 128KB
        • SHA256 9df0cbb3fb08556e5485ee5d88d7ba2d62acd62e214cde58d3d0cbeaef87f2a7
        • MD5 SHA1 SHA512 SSDEEP

        mscomctl.ocx

        • Path \??\c:\windows\mscomctl.ocx
        • Size 1.0MB
        • SHA256 09f126e65d90026c3f659ff41b1287671b8cc1aa16240fc75dae91079a6b9712
        • MD5 SHA1 SHA512 SSDEEP

        memory/2100-33-0x0000000000400000-0x000000000040D000-memory.dmp

        memory/2100-38-0x0000000000400000-0x000000000040D000-memory.dmp

        memory/3816-21-0x0000000000400000-0x0000000000410000-memory.dmp

        memory/3816-36-0x0000000000400000-0x0000000000410000-memory.dmp