Analysis

  • max time kernel
    141s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2024, 07:14

General

  • Target
    PL2303_Prolific_DriverInstaller_v110.exe
  • Size 3.0MB
  • Sample240705-h2m98axape
  • SHA256 3c80fd894036f549fb831d271595df775ebaba7d98fdeea579bfae3c9d42ec53
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PL2303_Prolific_DriverInstaller_v110.exe
    "C:\Users\Admin\AppData\Local\Temp\PL2303_Prolific_DriverInstaller_v110.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\ISBEW64.exe
      C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{6432BAC0-70DF-4E8E-9EC7-342165AC254E}
      2⤵
      • Executes dropped EXE
      PID:116

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        ISBEW64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\ISBEW64.exe
        • Size 117KB
        • SHA256 e1890e4ef7fe9c2242e1fa65da8162687c893d1a025fef254b827940d03a0d5a
        • MD5 SHA1 SHA512 SSDEEP

        DIFxData.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\DIFxData.ini
        • Size 86B
        • SHA256 1b9fd5c1f18357bd459be20bfcbf47ee18fa0c5d5cc42f6aed2705d5868b65f4
        • MD5 SHA1 SHA512

        FontData.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\FontData.ini
        • Size 39B
        • SHA256 766ee687d90b0217eb41cb85aca04375bdc24db986a33536631f864b7ce1a08a
        • MD5 SHA1 SHA512

        _IsRes.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\_IsRes.dll
        • Size 123KB
        • SHA256 ed38584275b7248ce51254bc34fbe247af641c416660342689d19e6559623b13
        • MD5 SHA1 SHA512 SSDEEP

        isrt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\isrt.dll
        • Size 216KB
        • SHA256 d6cd68fa4468878d8bc045ea518235f7c6cbebbd525486ddcec7d1069d83f119
        • MD5 SHA1 SHA512 SSDEEP

        setup.inx

        • Path C:\Users\Admin\AppData\Local\Temp\{1D1DFC4B-237F-4278-ADD7-9B12F831952D}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\setup.inx
        • Size 221KB
        • SHA256 498467d7110539a60c2b7046cc7dc6670075aff3c7b45de2ea7f8eca74a0bc0c
        • MD5 SHA1 SHA512 SSDEEP

        ISSetup.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{712E4789-1A28-4C97-8641-3604AF543506}\Disk1\ISSetup.dll
        • Size 523KB
        • SHA256 13223e7fbeb3dac968de77e6be974a36f86dc07884cc0e80eabf8b817ccb4a04
        • MD5 SHA1 SHA512 SSDEEP

        _Setup.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{712E4789-1A28-4C97-8641-3604AF543506}\_Setup.dll
        • Size 324KB
        • SHA256 0f5f4e003f4666ddc29a6cdd640a7d3b59687de1ccc54ad0dd30f1b701d7eb6a
        • MD5 SHA1 SHA512 SSDEEP

        setup.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{712E4789-1A28-4C97-8641-3604AF543506}\setup.ini
        • Size 528B
        • SHA256 43d30ee20d75e8ef29d7138568540ee23f996d0644eaf6bf4f687b6eed5d3b94
        • MD5 SHA1 SHA512

        memory/5084-95-0x0000000004F90000-0x0000000005017000-memory.dmp

        memory/5084-97-0x0000000002750000-0x00000000028E1000-memory.dmp

        memory/5084-29-0x0000000000590000-0x0000000000592000-memory.dmp

        memory/5084-107-0x0000000005140000-0x00000000051CF000-memory.dmp

        memory/5084-108-0x0000000002750000-0x00000000028E1000-memory.dmp

        memory/5084-30-0x00000000028DF000-0x00000000028E0000-memory.dmp

        memory/5084-25-0x0000000002750000-0x00000000028E1000-memory.dmp

        memory/5084-128-0x0000000002750000-0x00000000028E1000-memory.dmp

        memory/5084-129-0x0000000004F90000-0x0000000005017000-memory.dmp