Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2023, 10:38

General

  • Target
    auf1536.js
  • Size 48KB
  • Sample230705-mpdmgabf24
  • SHA256 ad019b6ed6fdcbc595ba74f0a1eb6c15ead8ae8e733824bc5f8044718ba5482c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://hbcomposites.com/remove.zip

  • exe.dropper

    https://hbcomposites.com/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\auf1536.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1352
    • 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\3pzeus4.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:3552

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        3pzeus4.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\3pzeus4.ps1
        • Size 1KB
        • SHA256 f6b7a6d71ea1b8031b2809b7a5ffffaeecf30284cd4bd2a8f04902bdc5f8839f
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_glrxpl4o.03u.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_glrxpl4o.03u.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • 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 258B
        • SHA256 f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d
        • 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 3.6MB
        • SHA256 38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5
        • MD5 SHA1 SHA512 SSDEEP

        PCICL32.dll

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\PCICL32.dll
        • Size 3.6MB
        • SHA256 38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5
        • MD5 SHA1 SHA512 SSDEEP

        client32.exe

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe
        • Size 101KB
        • SHA256 18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
        • MD5 SHA1 SHA512 SSDEEP

        client32.exe

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe
        • Size 101KB
        • SHA256 18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
        • MD5 SHA1 SHA512 SSDEEP

        client32.exe

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.exe
        • Size 101KB
        • SHA256 18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
        • MD5 SHA1 SHA512 SSDEEP

        client32.ini

        • Path C:\Users\Admin\AppData\RoamingOfficeStartup\client32.ini
        • Size 603B
        • SHA256 b0687bd92a466817fc2863296f584d8a3b52b208368701b52eea337735dbc483
        • 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/3976-153-0x0000019B7D040000-0x0000019B7D04A000-memory.dmp

        memory/3976-152-0x0000019B7D070000-0x0000019B7D082000-memory.dmp

        memory/3976-151-0x0000019B7D050000-0x0000019B7D064000-memory.dmp

        memory/3976-150-0x0000019B7AC40000-0x0000019B7AC50000-memory.dmp

        memory/3976-149-0x0000019B7AC40000-0x0000019B7AC50000-memory.dmp

        memory/3976-148-0x0000019B7AC40000-0x0000019B7AC50000-memory.dmp

        memory/3976-146-0x0000019B7AC00000-0x0000019B7AC22000-memory.dmp