Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 00:21

General

  • Target
    file_4c436927d72aed3f.msi
  • Size 11.4MB
  • Sample260702-ank9psas9z
  • SHA256 c68ede9934529477f86d80b5d02f5be7245ca6326cf0b02ac37516d6cfc8c2c4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • hijackloader

Attributes
  • directory

    %USERPROFILE%\HeapIndex_v12

  • inject_dll

    %windir%\SysWOW64\input.dll

xor.hex

Signatures

  • Family: HijackLoader, IDAT loader, Ghostulse,

    HijackLoader is a multi-stage loader, first seen in 2023.

  • Detects HijackLoader (aka IDAT Loader) 1 IoCs
  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\file_4c436927d72aed3f.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3600
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E5944B721C01215463709E318609CFC1 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{B5160C3B-AEA7-44B1-B173-88FB17F57AFD}
        3⤵
        • Executes dropped EXE
        PID:1364
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{DCC46379-F699-42A8-B4A7-4FAD71BC14DA}
        3⤵
        • Executes dropped EXE
        PID:3664
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{FEAB9989-6CDF-45C3-8B51-1349864A5AC2}
        3⤵
        • Executes dropped EXE
        PID:5956
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{7BED62DA-32F5-44B0-B516-00AB2514BA55}
        3⤵
        • Executes dropped EXE
        PID:5272
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{13EFC5CC-8C07-43F8-9C03-B82186C3DD74}
        3⤵
        • Executes dropped EXE
        PID:5260
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{BA38D6ED-0C7F-41DE-9E75-0700E72D8BC3}
        3⤵
        • Executes dropped EXE
        PID:3468
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{6F450409-2057-4557-B63D-01F51068CE55}
        3⤵
        • Executes dropped EXE
        PID:4628
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{68ACEE6B-90A6-451B-BF09-37F029C49361}
        3⤵
        • Executes dropped EXE
        PID:3056
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{3601B38D-17D3-4104-B2C4-B7E9A37D6F3D}
        3⤵
        • Executes dropped EXE
        PID:4744
      • C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{EA90B3E2-089E-49D3-B4D4-EF9D63171F6A}
        3⤵
        • Executes dropped EXE
        PID:2000
      • C:\Users\Admin\AppData\Local\Temp\{3CDBBCB3-C9EE-4A72-BEB6-B82D4A238055}\Aurora_Portal.exe
        C:\Users\Admin\AppData\Local\Temp\{3CDBBCB3-C9EE-4A72-BEB6-B82D4A238055}\Aurora_Portal.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:5240

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        MSIE7FA.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\MSIE7FA.tmp
        • Size 172KB
        • SHA256 2dc5a31f67fe877ca0eb95113873749def2beb0a205c62de206ccd7a668fce14
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSIF086.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\MSIF086.tmp
        • Size 2.5MB
        • SHA256 574cb64ae53d8d7bc4b7a86103283c06e1fb1da5c81c74d103bc718c31f545ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Aurora_Portal.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{3CDBBCB3-C9EE-4A72-BEB6-B82D4A238055}\Aurora_Portal.exe
        • Size 1.9MB
        • SHA256 9af57682d2053d479628b3e4f53ed630d3661d30fc553fe65966ffcb2c9101a3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ForOps_v17.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{3CDBBCB3-C9EE-4A72-BEB6-B82D4A238055}\ForOps_v17.dll
        • Size 1.1MB
        • SHA256 a3442550523a5220f769b7410779babcba85b67079f25c7886b9f3600a7f57ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SsUCommon.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{3CDBBCB3-C9EE-4A72-BEB6-B82D4A238055}\SsUCommon.dll
        • Size 1.7MB
        • SHA256 09a965f573ad7ad65130d14a975967baddfe281002e81de4666364b366bc8398
        • MD5 SHA1 SHA512 SSDEEP TLSH

        channel_sync.log

        • Path C:\Users\Admin\AppData\Local\Temp\{3CDBBCB3-C9EE-4A72-BEB6-B82D4A238055}\channel_sync.log
        • Size 10KB
        • SHA256 fb34270f3847496e5beb67c40d9c84ca0b34c51085a1b4778acdc3de20fb0931
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mesh-diag.toml

        • Path C:\Users\Admin\AppData\Local\Temp\{3CDBBCB3-C9EE-4A72-BEB6-B82D4A238055}\mesh-diag.toml
        • Size 1.9MB
        • SHA256 28aa539d36950b6b591a434bacb91fed4ed4feeb900b79687927a909c97453a0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ISBEW64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISBEW64.exe
        • Size 178KB
        • SHA256 8023e720f5a4b859e7ba5390037d4a08d7962d0a5af41c182806d403ea80fda9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ISRT.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\ISRT.dll
        • Size 426KB
        • SHA256 fb4f99cd0da2a02975e84206a39202eee74f0384846f2caf4417704f44e254e9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _isres_0x0409.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{BF20AD01-D027-4D45-ACC9-2E4B57A92870}\_isres_0x0409.dll
        • Size 1.8MB
        • SHA256 505916e8b40fdd031ee21eea40a8bee0adeac0d04e23c3a6b10ecee0217d2416
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1788-41-0x00000000036D0000-0x0000000003897000-memory.dmp

        memory/1788-36-0x0000000010000000-0x0000000010114000-memory.dmp

        memory/5240-66-0x0000000074990000-0x00000000749E2000-memory.dmp

        memory/5240-67-0x00007FF8DB880000-0x00007FF8DBAE3000-memory.dmp