Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 08:51

General

  • Target
    PL2303_Prolific_DriverInstaller_v1.10.0.exe
  • Size 3.1MB
  • Sample260729-kr7bfsstcs
  • SHA256 65a40058b09ec2f62c936406fa9f0bfafd765f3e072edec272cf789959fb216b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 12 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 16 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 21 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 41 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\PL2303_Prolific_DriverInstaller_v1.10.0.exe
    "C:\Users\Admin\AppData\Local\Temp\PL2303_Prolific_DriverInstaller_v1.10.0.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\ISBEW64.exe
      C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{E5768808-A119-4CE9-810F-58AECE3AEEA4}
      2⤵
      • Executes dropped EXE
      PID:6648
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4696
  • C:\Windows\system32\srtasks.exe
    C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4744
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{32731149-7f7a-2342-b8a9-5b1cc6a13be4}\ser2pl.inf" "9" "492f276df" "000000000000017C" "WinSta0\Default" "0000000000000130" "208" "C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\VISTA"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Modifies data under HKEY_USERS
    PID:4352

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        data1.cab

        • Path C:\Program Files (x86)\InstallShield Installation Information\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\data1.cab
        • Size 786KB
        • SHA256 6d8f048d1a72407c2a1c5960cdfc183d4200de03612b6936284d1bf4206da556
        • MD5 SHA1 SHA512 SSDEEP TLSH

        data8488.rra

        • Path C:\Program Files (x86)\InstallShield Installation Information\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\data8488.rra
        • Size 15KB
        • SHA256 37630157d710473111450014c44d3bde487cc1fbd781f761d3e876b65d939243
        • MD5 SHA1 SHA512 SSDEEP TLSH

        layout.bin

        • Path C:\Program Files (x86)\InstallShield Installation Information\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\layout.bin
        • Size 473B
        • SHA256 f3267c611644d9687c86a80e4b8062458642ec77b1c8b6a3c060f3f31f537420
        • MD5 SHA1 SHA512 TLSH

        setu8497.rra

        • Path C:\Program Files (x86)\InstallShield Installation Information\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\setu8497.rra
        • Size 364KB
        • SHA256 b7a82904d92b096cb6ab537365f9c7f24b1ecefaa6ea7974c24e8102b1746f4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.ini

        • Path C:\Program Files (x86)\InstallShield Installation Information\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\setup.ini
        • Size 584B
        • SHA256 acd647a986c6a330dea772db68ce0bcd159019c9fa2257bac93ffa52d1728d71
        • MD5 SHA1 SHA512 TLSH

        ISBEW64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\ISBEW64.exe
        • Size 117KB
        • SHA256 e1890e4ef7fe9c2242e1fa65da8162687c893d1a025fef254b827940d03a0d5a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DIFxData.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\DIFxData.ini
        • Size 86B
        • SHA256 1b9fd5c1f18357bd459be20bfcbf47ee18fa0c5d5cc42f6aed2705d5868b65f4
        • MD5 SHA1 SHA512 TLSH

        FontData.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\FontData.ini
        • Size 39B
        • SHA256 766ee687d90b0217eb41cb85aca04375bdc24db986a33536631f864b7ce1a08a
        • MD5 SHA1 SHA512

        SetupEx.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\SetupEx.dll
        • Size 72KB
        • SHA256 f2d5c657dde8e9843a8f4d76683e2bada5dfe1e80cf42b41f990fa40f25df53c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ser2pl.inf

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\Vista\ser2pl.inf
        • Size 2KB
        • SHA256 b096f6832226d21bf65afdbc082c152e12485a22dd9050380ce477dc261e9f76
        • MD5 SHA1 SHA512 TLSH

        _ISUser.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\_ISUser.dll
        • Size 16KB
        • SHA256 5b84902b90b74343f340237b559fb3f19c1707c1940c0b1e805d0182a2082a6f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _IsRes.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\_IsRes.dll
        • Size 123KB
        • SHA256 ed38584275b7248ce51254bc34fbe247af641c416660342689d19e6559623b13
        • MD5 SHA1 SHA512 SSDEEP TLSH

        isrt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\isrt.dll
        • Size 216KB
        • SHA256 d6cd68fa4468878d8bc045ea518235f7c6cbebbd525486ddcec7d1069d83f119
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.inx

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E6A6-BBE3-42AA-952C-B8D23A201D91}\{ECC3713C-08A4-40E3-95F1-7D0704F1CE5E}\setup.inx
        • Size 224KB
        • SHA256 e27bc4c62155a2c85b89eead20db41b035bb90abb78999fc67bfe8981e68f13f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ser2pl.cat

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E~1\{ECC37~1\Vista\ser2pl.cat
        • Size 8KB
        • SHA256 cd3d3c039077a62edbdbbe02d905afe06e6af6446ba8500220727c1696328581
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ser2pl64.sys

        • Path C:\Users\Admin\AppData\Local\Temp\{5806E~1\{ECC37~1\Vista\ser2pl64.sys
        • Size 166KB
        • SHA256 4ba0c0370f0c13aadbae9724660f13210554b0b84c405494521502c2f6def27e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ISSetup.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{C6CB96BE-9B67-47B2-AD4B-D7A5A48D88A2}\Disk1\ISSetup.dll
        • Size 523KB
        • SHA256 13223e7fbeb3dac968de77e6be974a36f86dc07884cc0e80eabf8b817ccb4a04
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _Setup.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{C6CB96BE-9B67-47B2-AD4B-D7A5A48D88A2}\_Setup.dll
        • Size 324KB
        • SHA256 0f5f4e003f4666ddc29a6cdd640a7d3b59687de1ccc54ad0dd30f1b701d7eb6a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{C6CB96BE-9B67-47B2-AD4B-D7A5A48D88A2}\setup.ini
        • Size 510B
        • SHA256 e84f9a13e50ffb019c8735dcc382b161f9e09e405ec801e590bc135c1d2314a9
        • MD5 SHA1 SHA512 TLSH

        ser2pl.inf_amd64_0634f445a8611d95.ini

        • Path C:\Windows\System32\DriverStore\FileRepository\ser2pl.inf_amd64_0634f445a8611d95.ini
        • Size 414B
        • SHA256 ffe02364e11894335df60e560d66fcd4d4f2d95bbbf1a991d07c64d0e8258676
        • MD5 SHA1 SHA512 TLSH

        memory/1184-29-0x00000000027F0000-0x0000000002981000-memory.dmp

        memory/1184-100-0x0000000005EE0000-0x0000000005F67000-memory.dmp

        memory/1184-142-0x0000000005EE0000-0x0000000005F67000-memory.dmp

        memory/1184-99-0x0000000005EE0000-0x0000000005F67000-memory.dmp

        memory/1184-30-0x0000000000AC0000-0x0000000000AC2000-memory.dmp

        memory/1184-31-0x000000000297F000-0x0000000002980000-memory.dmp

        memory/1184-102-0x00000000027F0000-0x0000000002981000-memory.dmp

        memory/1184-212-0x0000000002990000-0x00000000029A3000-memory.dmp

        memory/1184-14-0x0000000002230000-0x0000000002280000-memory.dmp

        memory/1184-110-0x0000000006220000-0x00000000062AF000-memory.dmp

        memory/1184-111-0x00000000027F0000-0x0000000002981000-memory.dmp

        memory/1184-141-0x00000000027F0000-0x0000000002981000-memory.dmp