Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2022, 11:22

General

  • Target
    c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe
  • Size 1.5MB
  • Sample221121-ngrd2agc99
  • SHA256 c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 2 IoCs
  • Registers COM server for autorun 1 TTPs 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe
    "C:\Users\Admin\AppData\Local\Temp\c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
        "C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe" /RegServer "/dll=C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.12.11510.1228\gtn.dll" "/swg64=C:\Program Files\Google\GoogleToolbarNotifier\5.12.11510.1228\swg64.dll"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2232
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe -s "C:\Program Files\Google\GoogleToolbarNotifier\5.12.11510.1228\swg64.dll"
          4⤵
          • Registers COM server for autorun
          • Loads dropped DLL
          • Modifies registry class
          PID:4540

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        gtn.dll

        • Path C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.12.11510.1228\gtn.dll
        • Size 140KB
        • SHA256 91cb858f2a30cc23e25138d094a743206d765613c70b9a42e511caf32e8761a5
        • MD5 SHA1 SHA512 SSDEEP

        gtn.dll

        • Path C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.12.11510.1228\gtn.dll
        • Size 140KB
        • SHA256 91cb858f2a30cc23e25138d094a743206d765613c70b9a42e511caf32e8761a5
        • MD5 SHA1 SHA512 SSDEEP

        swg.dll

        • Path C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.12.11510.1228\swg.dll
        • Size 914KB
        • SHA256 c7f7d193f353462e4a544538591d9c41bc9262e57d6a77d4b2c134fac8134614
        • MD5 SHA1 SHA512 SSDEEP

        swg.dll

        • Path C:\Program Files (x86)\Google\GoogleToolbarNotifier\5.12.11510.1228\swg.dll
        • Size 914KB
        • SHA256 c7f7d193f353462e4a544538591d9c41bc9262e57d6a77d4b2c134fac8134614
        • MD5 SHA1 SHA512 SSDEEP

        GoogleToolbarNotifier.exe

        • Path C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
        • Size 38KB
        • SHA256 d32cc7b31a6f98c60abc313abc7d1143681f72de2bb2604711a0ba20710caaae
        • MD5 SHA1 SHA512 SSDEEP

        GoogleToolbarNotifier.exe

        • Path C:\Program Files (x86)\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
        • Size 38KB
        • SHA256 d32cc7b31a6f98c60abc313abc7d1143681f72de2bb2604711a0ba20710caaae
        • MD5 SHA1 SHA512 SSDEEP

        swg64.dll

        • Path C:\Program Files\Google\GoogleToolbarNotifier\5.12.11510.1228\swg64.dll
        • Size 245KB
        • SHA256 40ec2b0fe7b98182d572fb5a031a1c77f5620e269fbab86d2a5afcb4499915f7
        • MD5 SHA1 SHA512 SSDEEP

        swg64.dll

        • Path C:\Program Files\Google\GoogleToolbarNotifier\5.12.11510.1228\swg64.dll
        • Size 245KB
        • SHA256 40ec2b0fe7b98182d572fb5a031a1c77f5620e269fbab86d2a5afcb4499915f7
        • MD5 SHA1 SHA512 SSDEEP

        c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe
        • Size 1.5MB
        • SHA256 99f24e71da17715d2d9aefec8f3a35b545918bc483c3a1e998940c562f53c830
        • MD5 SHA1 SHA512 SSDEEP

        c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\c30f1695fec5a70fa7137cb8b9883bc5b486edd2bb58267a2646d6ea8b22ef31.exe
        • Size 1.5MB
        • SHA256 99f24e71da17715d2d9aefec8f3a35b545918bc483c3a1e998940c562f53c830
        • MD5 SHA1 SHA512 SSDEEP