Analysis

  • max time kernel
    270s
  • max time network
    234s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20251017-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20251017-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    27/10/2025, 14:29

General

  • Target
    Setup.msi
  • Size 2.9MB
  • Sample251027-rtlk4axqft
  • SHA256 ba699da64d44b039defd4f42340bc7bec888b8dcef135d5735f2af309ce8ce72
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • hijackloader

Attributes
  • directory

    %APPDATA%\StreammakeXL_4

  • inject_dll

    %windir%\SysWOW64\pla.dll

xor.hex

Signatures

  • Detects HijackLoader (aka IDAT Loader) 1 IoCs
  • HijackLoader

    HijackLoader is a multistage loader first seen in 2023.

  • Hijackloader family
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 1 IoCs
  • Sectoprat family
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Setup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4336
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3324
      • C:\Users\Admin\AppData\Local\Pectolite\WizardCore.exe
        "C:\Users\Admin\AppData\Local\Pectolite\WizardCore.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3212
        • C:\ProgramData\StreammakeXL_4\WizardCore.exe
          C:\ProgramData\StreammakeXL_4\WizardCore.exe
          3⤵
          • Suspicious use of SetThreadContext
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2784
          • C:\Users\Admin\StrInterface.exe
            C:\Users\Admin\StrInterface.exe
            4⤵
            • Loads dropped DLL
            • Suspicious behavior: EnumeratesProcesses
            PID:4876
          • C:\Users\Admin\AppData\Roaming\StreammakeXL_4\XPFix.exe
            "C:\Users\Admin\AppData\Roaming\StreammakeXL_4\XPFix.exe" "C:\Users\Admin\AppData\Roaming\StreammakeXL_4\XPFix.exe" /u
            4⤵
              PID:216
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious use of AdjustPrivilegeToken
        PID:4408

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e57b900.rbs

            • Path C:\Config.Msi\e57b900.rbs
            • Size 8KB
            • SHA256 574097f9df73022b96123e61af27848983b69f4a08170fec7f73b565bfc5b180
            • MD5 SHA1 SHA512 SSDEEP

            CCleanerReactivator.dll

            • Path C:\Users\Admin\AppData\Local\Pectolite\CCleanerReactivator.dll
            • Size 2.2MB
            • SHA256 7021a664010f20846bc357a1f0df121ab74819a268a983b42c685e414bac3cb6
            • MD5 SHA1 SHA512 SSDEEP

            Cieslailjieb.fi

            • Path C:\Users\Admin\AppData\Local\Pectolite\Cieslailjieb.fi
            • Size 21KB
            • SHA256 bfbd4e58b196f03c716e70df597f83e7ea6dabcf25ad1e0da40a076187edda58
            • MD5 SHA1 SHA512 SSDEEP

            Eengvougbig.qmi

            • Path C:\Users\Admin\AppData\Local\Pectolite\Eengvougbig.qmi
            • Size 2.2MB
            • SHA256 d535d7bbd118e075ac1818136eda1eefa4807656ecf80bc5f1c51bb4aae5a154
            • MD5 SHA1 SHA512 SSDEEP

            WizardCore.exe

            • Path C:\Users\Admin\AppData\Local\Pectolite\WizardCore.exe
            • Size 186KB
            • SHA256 9c8b68adcc8f1731db50fe129a0c3b2c304e7d7649ded5a599c741ce12917875
            • MD5 SHA1 SHA512 SSDEEP

            539BDB2.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\539BDB2.tmp
            • Size 3.0MB
            • SHA256 2ebb101ca3634afc07ddd0624e3a5759fee5a1dcad2fbd221579048074d37552
            • MD5 SHA1 SHA512 SSDEEP

            8DCE3DA.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\8DCE3DA.tmp
            • Size 40B
            • SHA256 e5ced7c0fe47a29e0ba9f399ef50d78f78e4a2cdc06962c2148cf948fc5255f7
            • MD5 SHA1 SHA512

            StrInterface.exe

            • Path C:\Users\Admin\StrInterface.exe
            • Size 1.3MB
            • SHA256 e189e7fe9cd6d63ecece8b8e8fafb773003db6009fb0c45dc2b21e77167938ba
            • MD5 SHA1 SHA512 SSDEEP

            e57b8ff.msi

            • Path C:\Windows\Installer\e57b8ff.msi
            • Size 2.9MB
            • SHA256 ba699da64d44b039defd4f42340bc7bec888b8dcef135d5735f2af309ce8ce72
            • MD5 SHA1 SHA512 SSDEEP

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 24.0MB
            • SHA256 e0cda6f22dbd341c77574acab75707896d05a1f0f2a166b91cdd22e150ceafe4
            • MD5 SHA1 SHA512 SSDEEP

            {bcc5f2e0-baea-4287-ad65-43eb013f24df}_OnDiskSnapshotProp

            • Path \??\Volume{a50e610e-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{bcc5f2e0-baea-4287-ad65-43eb013f24df}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 53c681c6ad5e0a2bde002e907c1d857ae1f29ea62b18648243406c73c21a56b1
            • MD5 SHA1 SHA512 SSDEEP

            memory/2784-30-0x00007FF9EE410000-0x00007FF9EE582000-memory.dmp

            memory/2784-38-0x00007FF9EE410000-0x00007FF9EE582000-memory.dmp

            memory/2784-32-0x00007FF9EE410000-0x00007FF9EE582000-memory.dmp

            memory/3212-27-0x00007FF9EE410000-0x00007FF9EE582000-memory.dmp

            memory/4876-40-0x00007FF78F600000-0x00007FF78F707000-memory.dmp

            memory/4876-45-0x00007FF78F600000-0x00007FF78F707000-memory.dmp

            memory/4876-47-0x0000028BE4E90000-0x0000028BE4F68000-memory.dmp

            memory/4876-48-0x0000028BE5140000-0x0000028BE5302000-memory.dmp

            memory/4876-49-0x00007FF78F600000-0x00007FF78F707000-memory.dmp

            memory/4876-54-0x0000028BCB230000-0x0000028BCB2A6000-memory.dmp

            memory/4876-55-0x0000028BCB2B0000-0x0000028BCB300000-memory.dmp

            memory/4876-56-0x0000028BE5840000-0x0000028BE5D68000-memory.dmp