Analysis

  • max time kernel
    110s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/07/2023, 08:29

General

  • Target
    notepad6008.js
  • Size 47KB
  • Sample230708-kdkkjaeb3v
  • SHA256 2e7c06e3cf60da0c6c3f09a015aba51456aa68242cce644df3de822c0b6471fa
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://virvatulishop.eu/costa.zip

  • exe.dropper

    https://virvatulishop.eu/files/

Signatures

  • NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\notepad6008.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -WindowStyle hidden -File C:\Users\Admin\AppData\Local\Temp\kkgsm24.ps1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3976
      • C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe
        "C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:4040

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        __PSScriptPolicyTest_v1jizcsz.izn.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v1jizcsz.izn.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        kkgsm24.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\kkgsm24.ps1
        • Size 1KB
        • SHA256 081c6f09142e6a46366c53143cb73d1c01bc42ed73e4e6defa4422b7d81b5386
        • MD5 SHA1 SHA512

        HTCTL32.DLL

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\HTCTL32.DLL
        • Size 320KB
        • SHA256 3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
        • MD5 SHA1 SHA512 SSDEEP

        HTCTL32.DLL

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\HTCTL32.DLL
        • Size 320KB
        • SHA256 3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
        • MD5 SHA1 SHA512 SSDEEP

        MSVCR100.dll

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\MSVCR100.dll
        • Size 755KB
        • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
        • MD5 SHA1 SHA512 SSDEEP

        NSM.LIC

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\NSM.LIC
        • Size 262B
        • SHA256 fcc6afd664a8045bd61c398be3c37a97536a199a48d277e11977f93868ae1acc
        • MD5 SHA1 SHA512

        PCICHEK.DLL

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\PCICHEK.DLL
        • Size 18KB
        • SHA256 956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
        • MD5 SHA1 SHA512 SSDEEP

        PCICL32.DLL

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\PCICL32.DLL
        • Size 3.5MB
        • SHA256 beb7b9a9fb02b2ad9965364fd6769ea0d8b324049da86eedd406e1c3703502c1
        • MD5 SHA1 SHA512 SSDEEP

        PCICL32.dll

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\PCICL32.dll
        • Size 3.5MB
        • SHA256 beb7b9a9fb02b2ad9965364fd6769ea0d8b324049da86eedd406e1c3703502c1
        • MD5 SHA1 SHA512 SSDEEP

        client32.exe

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe
        • Size 113KB
        • SHA256 ab6a4ccb752858c8c6e8223cd3510503928c3f9816cc655f0033d86c15c28ed9
        • MD5 SHA1 SHA512 SSDEEP

        client32.exe

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe
        • Size 113KB
        • SHA256 ab6a4ccb752858c8c6e8223cd3510503928c3f9816cc655f0033d86c15c28ed9
        • MD5 SHA1 SHA512 SSDEEP

        client32.exe

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe
        • Size 113KB
        • SHA256 ab6a4ccb752858c8c6e8223cd3510503928c3f9816cc655f0033d86c15c28ed9
        • MD5 SHA1 SHA512 SSDEEP

        client32.ini

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.ini
        • Size 605B
        • SHA256 a5be7a73bbed8ec4e1a7819289da5412fe9ddf628941aa3b35fbe7454f148618
        • MD5 SHA1 SHA512

        msvcr100.dll

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\msvcr100.dll
        • Size 755KB
        • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
        • MD5 SHA1 SHA512 SSDEEP

        pcicapi.dll

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\pcicapi.dll
        • Size 32KB
        • SHA256 2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
        • MD5 SHA1 SHA512 SSDEEP

        pcicapi.dll

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\pcicapi.dll
        • Size 32KB
        • SHA256 2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
        • MD5 SHA1 SHA512 SSDEEP

        pcichek.dll

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\pcichek.dll
        • Size 18KB
        • SHA256 956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
        • MD5 SHA1 SHA512 SSDEEP

        memory/3976-152-0x00000189D6FE0000-0x00000189D6FF2000-memory.dmp

        memory/3976-151-0x00000189D62A0000-0x00000189D62B0000-memory.dmp

        memory/3976-153-0x00000189D6FB0000-0x00000189D6FBA000-memory.dmp

        memory/3976-142-0x00000189D6220000-0x00000189D6242000-memory.dmp

        memory/3976-150-0x00000189D62A0000-0x00000189D62B0000-memory.dmp

        memory/3976-149-0x00000189D62A0000-0x00000189D62B0000-memory.dmp

        memory/3976-148-0x00000189D6FC0000-0x00000189D6FD4000-memory.dmp