Resubmissions

20/07/2026, 19:52

260720-ylrwgaft4t10

05/06/2026, 19:35

260605-ya3htsc19y10

Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/06/2026, 19:35

General

  • Target
    ZKMTXIFS.msi
  • Size 4.0MB
  • Sample260605-ya3htsc19y
  • SHA256 c23f672216fc75e637c1b6dd66ee9753996d9d5dc123da23151fb99ba9814011
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • hijackloader

Attributes
  • directory

    %APPDATA%\srvqueue

  • 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 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • 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 12 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 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 6 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\ZKMTXIFS.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1760
  • 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:3132
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2924
      • C:\Users\Admin\AppData\Local\Umbrella\UnitPor.exe
        "C:\Users\Admin\AppData\Local\Umbrella\UnitPor.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1740
        • C:\ProgramData\srvqueue\UnitPor.exe
          C:\ProgramData\srvqueue\UnitPor.exe
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:6108
          • C:\Users\Admin\AppData\Local\Temp\DyRegistry.exe
            C:\Users\Admin\AppData\Local\Temp\DyRegistry.exe
            4⤵
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:2256
          • C:\Users\Admin\AppData\Roaming\srvqueue\XPFix.exe
            "C:\Users\Admin\AppData\Roaming\srvqueue\XPFix.exe" "C:\Users\Admin\AppData\Roaming\srvqueue\XPFix.exe" /u
            4⤵
              PID:2788
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious use of AdjustPrivilegeToken
        PID:5428

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            e581a3b.rbs

            • Path C:\Config.Msi\e581a3b.rbs
            • Size 10KB
            • SHA256 90c6b7fa5803f9127eb1abd252592d98a9f03e5af86ac5128ae407c132089de2
            • MD5 SHA1 SHA512 SSDEEP TLSH

            2D45E09.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\2D45E09.tmp
            • Size 1.7MB
            • SHA256 b92aa845076098716e2b7a504ee9681da0a8590e6386291573c7c9dfe8c7849e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            63F81DF.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\63F81DF.tmp
            • Size 40B
            • SHA256 9d53d334caac7b95a450775f97fd63fa867b4cf457162c3f761fd7a2b80f08a0
            • MD5 SHA1 SHA512

            DyRegistry.exe

            • Path C:\Users\Admin\AppData\Local\Temp\DyRegistry.exe
            • Size 94KB
            • SHA256 b5379a43dbdd7231f7cafb912c1405e4d34f7c1f746db54ef03a3e024a6ee9c3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            PFU.PaperStream.SimpleScan.Overview.exe.config

            • Path C:\Users\Admin\AppData\Local\Umbrella\PFU.PaperStream.SimpleScan.Overview.exe.config
            • Size 186B
            • SHA256 139a5ed4ca21dd2560abeedce8f2019fae3452490fd825ca6c4ece87232888db
            • MD5 SHA1 SHA512 TLSH

            PFU.PaperStream.SimpleScan.ScanProc.exe.config

            • Path C:\Users\Admin\AppData\Local\Umbrella\PFU.PaperStream.SimpleScan.ScanProc.exe.config
            • Size 189B
            • SHA256 7f3c414abe39b6e9ab37c48d5962f421ea91971a21f3eb1a9ff1789fafc6649e
            • MD5 SHA1 SHA512 TLSH

            PFU.PaperStream.SimpleScan.exe.config

            • Path C:\Users\Admin\AppData\Local\Umbrella\PFU.PaperStream.SimpleScan.exe.config
            • Size 674B
            • SHA256 c9702b241c87b66382627e6db5f7997fee804f5447be315474beeb7527aee206
            • MD5 SHA1 SHA512 TLSH

            ProfileData.dll

            • Path C:\Users\Admin\AppData\Local\Umbrella\ProfileData.dll
            • Size 91KB
            • SHA256 3e6db69d8bf0f606e23e27543bd39cd68c5384da6fba1f91ac493762d45d28e8
            • MD5 SHA1 SHA512 SSDEEP TLSH

            UnitPor.exe

            • Path C:\Users\Admin\AppData\Local\Umbrella\UnitPor.exe
            • Size 62KB
            • SHA256 0ebbf66e8dcbd8b6a6ab755744ea29f8b4b3e59de62206b67dd1c498adf5aea9
            • MD5 SHA1 SHA512 SSDEEP TLSH

            VCRUNTIME140.dll

            • Path C:\Users\Admin\AppData\Local\Umbrella\VCRUNTIME140.dll
            • Size 89KB
            • SHA256 a9d7732a3c3de09f0601a7fa2555093dcb49f08e2fc62a86091461f0f38393ed
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memoryctx30.tmp

            • Path C:\Users\Admin\AppData\Local\Umbrella\memoryctx30.tmp
            • Size 31KB
            • SHA256 7e18aa2ba32d3e6082b61e8cc1c49137bd443642aeb2f7dfe6747ee7b11835b6
            • MD5 SHA1 SHA512 SSDEEP TLSH

            mfc140u.dll

            • Path C:\Users\Admin\AppData\Local\Umbrella\mfc140u.dll
            • Size 4.7MB
            • SHA256 e285775ad4238fe1f2117ad890b748a818aab0cdc0b94b813f6a774263a8e6c4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            msvcp_win.dll

            • Path C:\Users\Admin\AppData\Local\Umbrella\msvcp_win.dll
            • Size 493KB
            • SHA256 7a3d3b2dd5dbc304a1b0536ef0f9a41922e9ce06a25e9914a36d3160ba1f3d40
            • MD5 SHA1 SHA512 SSDEEP TLSH

            scanner.json

            • Path C:\Users\Admin\AppData\Local\Umbrella\scanner.json
            • Size 1.5MB
            • SHA256 7e0164175ed7b9950fd6f9024a0182eb537ab850bd3f2c49d2b0b6928a78dd4b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            ucrtbase.dll

            • Path C:\Users\Admin\AppData\Local\Umbrella\ucrtbase.dll
            • Size 1.1MB
            • SHA256 b59c1f7e457b144a211b74b31492a68a7844232121c4046c7538b0d2ab3cfc31
            • MD5 SHA1 SHA512 SSDEEP TLSH

            e581a3a.msi

            • Path C:\Windows\Installer\e581a3a.msi
            • Size 4.0MB
            • SHA256 c23f672216fc75e637c1b6dd66ee9753996d9d5dc123da23151fb99ba9814011
            • MD5 SHA1 SHA512 SSDEEP TLSH

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 24.6MB
            • SHA256 de4db0dbec43cf82c3d862398f046f4329a25cd1264fedfa547a4235a4137100
            • MD5 SHA1 SHA512 SSDEEP TLSH

            {cb8f0f71-fe65-4dc3-939b-48ceedbd748d}_OnDiskSnapshotProp

            • Path \??\Volume{f71a51ab-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{cb8f0f71-fe65-4dc3-939b-48ceedbd748d}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 b2af3ded4400bdc62ae5057bbf01134a61be95f826432706605971c40eedbaa4
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1740-41-0x00007FF8BCEE0000-0x00007FF8BD0E9000-memory.dmp

            memory/1740-40-0x0000000074C40000-0x0000000074C8F000-memory.dmp

            memory/2256-179-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-155-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-1991-0x0000000006C20000-0x00000000071C6000-memory.dmp

            memory/2256-1990-0x0000000006B80000-0x0000000006C12000-memory.dmp

            memory/2256-1987-0x0000000005A20000-0x0000000005A86000-memory.dmp

            memory/2256-89-0x00007FF8BCEE0000-0x00007FF8BD0E9000-memory.dmp

            memory/2256-90-0x0000000000AB0000-0x0000000000B82000-memory.dmp

            memory/2256-1985-0x00000000059D0000-0x00000000059D6000-memory.dmp

            memory/2256-93-0x00000000055D0000-0x000000000567E000-memory.dmp

            memory/2256-94-0x0000000005520000-0x0000000005584000-memory.dmp

            memory/2256-95-0x0000000005890000-0x000000000596C000-memory.dmp

            memory/2256-99-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-111-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-200-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-201-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-198-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-195-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-191-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-189-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-187-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-185-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-193-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-183-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-181-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-96-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-177-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-175-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-173-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-171-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-167-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-165-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-163-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-161-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-159-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-157-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-84-0x0000000000AB0000-0x0000000000B82000-memory.dmp

            memory/2256-153-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-151-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-147-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-145-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-143-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-141-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-137-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-135-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-133-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-131-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-129-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-127-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-125-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-123-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-119-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-117-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-115-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-113-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-109-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-108-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-105-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-106-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-103-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-101-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-169-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-149-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-139-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-97-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/2256-121-0x0000000005890000-0x0000000005966000-memory.dmp

            memory/6108-75-0x0000000074C40000-0x0000000074C8F000-memory.dmp

            memory/6108-92-0x0000000000770000-0x0000000000882000-memory.dmp

            memory/6108-76-0x00007FF8BCEE0000-0x00007FF8BD0E9000-memory.dmp

            memory/6108-78-0x0000000074C40000-0x0000000074C8F000-memory.dmp

            memory/6108-82-0x0000000074C40000-0x0000000074C8F000-memory.dmp