Analysis

  • max time kernel
    299s
  • max time network
    325s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260911-es
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260911-eslocale:es-esos:windows10-ltsc_2021-x64systemwindows
  • submitted
    23/10/2026, 23:46

General

  • Target
    Oneshot/_Redist/xnafx40_redist.msi
  • Size 6.7MB
  • Sample261023-3sr72adh38
  • SHA256 e6c41d692ebcba854dad4b1c52bb7ddd05926bad3105595d6596b8bab01c25e7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 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.

  • Drops file in System32 directory 21 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 29 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 53 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 3 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\Oneshot\_Redist\xnafx40_redist.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:5012
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1092
    • C:\Program Files (x86)\Microsoft XNA\XNA Game Studio\v4.0\Redist\DX Redist\DXSETUP.exe
      "C:\Program Files (x86)\Microsoft XNA\XNA Game Studio\v4.0\Redist\DX Redist\DXSETUP.exe" /silent
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Modifies registry class
      PID:2252
    • C:\Windows\syswow64\MsiExec.exe
      "C:\Windows\syswow64\MsiExec.exe" /Y "C:\Program Files (x86)\Common Files\Microsoft Shared\XNA\Framework\Shared\xnavisualizer.dll"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:4060
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2576

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e598b7e.rbs

        • Path C:\Config.Msi\e598b7e.rbs
        • Size 17KB
        • SHA256 a41a2b02b46c29136c72e84616fc17270698d665a805fba124c0c89f7e286d85
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e598b80.rbs

        • Path C:\Config.Msi\e598b80.rbs
        • Size 596B
        • SHA256 cdb64705bfea571dff41d8928cc05ef887068e2820ae98a75d08deacabe9c31c
        • MD5 SHA1 SHA512 TLSH

        Apr2007_d3dx9_33_x86.cab

        • Path C:\PROGRA~2\MICROS~2\XNAGAM~1\v4.0\Redist\DXREDI~1\Apr2007_d3dx9_33_x86.cab
        • Size 1.5MB
        • SHA256 219441f975c200352a12dc3d8f82811fc7b53ed28d63761327933afbb660f876
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Apr2007_xinput_x86.cab

        • Path C:\PROGRA~2\MICROS~2\XNAGAM~1\v4.0\Redist\DXREDI~1\Apr2007_xinput_x86.cab
        • Size 55KB
        • SHA256 5ab7bb15394e4ece850da5453413ab1de2ea97d5c93f86482b75073aaa05da9c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Feb2010_X3DAudio_x86.cab

        • Path C:\PROGRA~2\MICROS~2\XNAGAM~1\v4.0\Redist\DXREDI~1\Feb2010_X3DAudio_x86.cab
        • Size 20KB
        • SHA256 7fbf09682fd15d721ff2c5cb110b5ffcf5982cd2dd8d72b708cf3cd0bc4fa250
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Feb2010_XACT_x86.cab

        • Path C:\PROGRA~2\MICROS~2\XNAGAM~1\v4.0\Redist\DXREDI~1\Feb2010_XACT_x86.cab
        • Size 90KB
        • SHA256 0ba00c41443639dea9b816fa2608088ccef5dbe850531dff4c1e7993804b0b60
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Feb2010_XAudio_x86.cab

        • Path C:\PROGRA~2\MICROS~2\XNAGAM~1\v4.0\Redist\DXREDI~1\Feb2010_XAudio_x86.cab
        • Size 270KB
        • SHA256 281bb0e12f617e9ae7fe3301a7d4a08201b377caa0311a886e8cddc2526f734a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Mar2009_d3dx9_41_x86.cab

        • Path C:\PROGRA~2\MICROS~2\XNAGAM~1\v4.0\Redist\DXREDI~1\Mar2009_d3dx9_41_x86.cab
        • Size 1.5MB
        • SHA256 5146e15d4c65590704286bfcfbbcc31e98a6832f8a7cc3bfdcb1e7fa5a647bb1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        dxupdate.cab

        • Path C:\PROGRA~2\MICROS~2\XNAGAM~1\v4.0\Redist\DXREDI~1\dxupdate.cab
        • Size 93KB
        • SHA256 54d68f154058433865708ee0dbf3ecf2d609ffbd618e84a1056440379494d9fd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        xnavisualizer.dll

        • Path C:\Program Files (x86)\Common Files\Microsoft Shared\XNA\Framework\Shared\xnavisualizer.dll
        • Size 46KB
        • SHA256 11bcc9f47d9b0397f6d78c08e7208ee812cbef54bb02a8c3a681608879471c8c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DSETUP.dll

        • Path C:\Program Files (x86)\Microsoft XNA\XNA Game Studio\v4.0\Redist\DX Redist\DSETUP.dll
        • Size 91KB
        • SHA256 9d47b4fa2dcce6a02a51324cfb97f5e153086c2eb8832b211e175cbe5fb850b3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DXSETUP.exe

        • Path C:\Program Files (x86)\Microsoft XNA\XNA Game Studio\v4.0\Redist\DX Redist\DXSETUP.exe
        • Size 512KB
        • SHA256 16953a202265db5655b3dd972b855619728da76545a2f94bcbb6c43262f48d5b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        dsetup32.dll

        • Path C:\Program Files (x86)\Microsoft XNA\XNA Game Studio\v4.0\Redist\DX Redist\dsetup32.dll
        • Size 1.6MB
        • SHA256 a5c6df12f9fe2edab2a22fe7abf3cb17eac110a6fd469f2570ba04afc88ad767
        • MD5 SHA1 SHA512 SSDEEP TLSH

        FEB2010_X3DAudio_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\FEB2010_X3DAudio_x86.inf
        • Size 1KB
        • SHA256 d4da3e530982812d1e2a31570b80af541fac1b13c72997d2aad7ea3bfeaf4a4a
        • MD5 SHA1 SHA512 TLSH

        FEB2010_XACT_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\FEB2010_XACT_x86.inf
        • Size 1KB
        • SHA256 e850fdb84bcac0f667927e53fee943efd3f43be6c6a0ae1e17f3fff83ddb2635
        • MD5 SHA1 SHA512 TLSH

        FEB2010_XAudio_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\FEB2010_XAudio_x86.inf
        • Size 1KB
        • SHA256 74c827ef94881099761e04397ef8f162fd0ccaf4876a5503c4b53a5216d2acca
        • MD5 SHA1 SHA512 TLSH

        Mar2009_d3dx9_41_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\Mar2009_d3dx9_41_x86.inf
        • Size 1KB
        • SHA256 bd29711cc2ecd924990167ffa95f48842e24aeed3acef1023717040240b4bbb6
        • MD5 SHA1 SHA512 TLSH

        X3DAudio1_7.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\X3DAudio1_7.dll
        • Size 21KB
        • SHA256 288c701bdedf1d45c63dd0b7d424a752f8819f90feb5088c582f76bc98970ba3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        XACT3_6_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\XACT3_6_x86.inf
        • Size 849B
        • SHA256 da4b77f9e2cee68c8ff767e851b9abdb1d73a30704e6a2e0d3874f8cc559665f
        • MD5 SHA1 SHA512 TLSH

        XAPOFX1_4.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\XAPOFX1_4.dll
        • Size 72KB
        • SHA256 0aee44b12913a95840ee6431d90518b0d72c54a27392e21ee6995e2151554a06
        • MD5 SHA1 SHA512 SSDEEP TLSH

        XAudio2_6.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\XAudio2_6.dll
        • Size 515KB
        • SHA256 61b57170f7c6365714396072d22cb98746718c0f44c9f0d5c62fdb1b218639c7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        XAudio2_6_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\XAudio2_6_x86.inf
        • Size 882B
        • SHA256 c60c4a6018e5f860a12322a0d77a1f2ad85c2d6d6dd04cc651560790dd66c9ad
        • MD5 SHA1 SHA512 TLSH

        apr2007_d3dx9_33_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\apr2007_d3dx9_33_x86.inf
        • Size 1KB
        • SHA256 349a09a2791d697bffffc61410a536cdcf258f0d7c86dda44a297e8aec4bdf00
        • MD5 SHA1 SHA512 TLSH

        apr2007_xinput_x86.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\apr2007_xinput_x86.inf
        • Size 1KB
        • SHA256 1c798cb80e9e46ce03356ea7316e1eff5d3a88ccdd7cbfbfcdce73cded23b4e5
        • MD5 SHA1 SHA512 TLSH

        d3dx9_33.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\d3dx9_33.dll
        • Size 3.3MB
        • SHA256 c6b7b2ad7742dde5dd8d1a35fdc1c185e586e551ad9c74d3fb21759cd8ca4da8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        d3dx9_41.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\d3dx9_41.dll
        • Size 4.0MB
        • SHA256 6ac4df203af419d3f3b7d9a99e14a3490ea3ad307c474bfe36baea642b1421f6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        dxupdate.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\dxupdate.dll
        • Size 169KB
        • SHA256 b1f954cd75dc3c9d5bc57f1a4c28720ee3639aa8a4306f3da7b27d3c361ff8f5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        dxupdate.inf

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\dxupdate.inf
        • Size 12KB
        • SHA256 7530c6e18dbb522c5f4fbf6714962c185ea318f9eab7aeb833b0cc07cd2fe656
        • MD5 SHA1 SHA512 SSDEEP TLSH

        xactengine3_6.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\xactengine3_6.dll
        • Size 233KB
        • SHA256 8a7e7c5ac2e6230f0249d46751522e7ecf85e7490cf7491ab73bf2e7e59e4c0f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        xinput1_3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\DXC440.tmp\xinput1_3.dll
        • Size 79KB
        • SHA256 8d540d484ea41e374fd0107d55d253f87ded4ce780d515d8fd59bbe8c98970a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e598b7d.msi

        • Path C:\Windows\Installer\e598b7d.msi
        • Size 6.7MB
        • SHA256 e6c41d692ebcba854dad4b1c52bb7ddd05926bad3105595d6596b8bab01c25e7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DirectX.log

        • Path C:\Windows\Logs\DirectX.log
        • Size 10KB
        • SHA256 381d9cb35c9f56cf38f519e0ac72b89ba03c3b9a89717dd35cf706b7d7b8c7d1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DirectX.log

        • Path C:\Windows\Logs\DirectX.log
        • Size 297B
        • SHA256 f8f7fa853dd8206a6cc04f53e9ab5fb12bdd420003563ea9036c986895b17db5
        • MD5 SHA1 SHA512 TLSH

        Microsoft.Xna.Framework.Game.dll

        • Path C:\Windows\assembly\tmp\067898RF\Microsoft.Xna.Framework.Game.dll
        • Size 73KB
        • SHA256 a0347e9d9a646779a9bb1bd512af333ae07a3db65b3259fae3220ed87a80e756
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.Storage.dll

        • Path C:\Windows\assembly\tmp\8DTI9DBF\Microsoft.Xna.Framework.Storage.dll
        • Size 20KB
        • SHA256 7edbb80c699ce3ead8aee5a512ee34c7718cb5dceeb1d0577e788ad8d0ad9383
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.GamerServices.dll

        • Path C:\Windows\assembly\tmp\8K4I3228\Microsoft.Xna.Framework.GamerServices.dll
        • Size 70KB
        • SHA256 627e84c06cc4e409870b068c9ec9149adba425e47e64185f92d839db2aa35484
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.Xact.dll

        • Path C:\Windows\assembly\tmp\BPYZJT5D\Microsoft.Xna.Framework.Xact.dll
        • Size 74KB
        • SHA256 6824bb0b7b42626d1ed5b7ab7e4dab4a380fa010175d4de0fadb1c3904e491d1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.Video.dll

        • Path C:\Windows\assembly\tmp\HL1O9125\Microsoft.Xna.Framework.Video.dll
        • Size 17KB
        • SHA256 63c7673c936747abd9ebe779e8837c8b8add2c078a31216684fbf8c6bcab2745
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.dll

        • Path C:\Windows\assembly\tmp\SMV25RLL\Microsoft.Xna.Framework.dll
        • Size 657KB
        • SHA256 8b7aa4c4939f243b21432747281cc8aacdcda56191a16d9eaa036b4136cf0da4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.Input.Touch.dll

        • Path C:\Windows\assembly\tmp\STTM4FJS\Microsoft.Xna.Framework.Input.Touch.dll
        • Size 22KB
        • SHA256 2191bad4540b50723acbda55bd2c6e5d80cc6f84ad989ff89ddda672348577b2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.Avatar.dll

        • Path C:\Windows\assembly\tmp\U2HIS30V\Microsoft.Xna.Framework.Avatar.dll
        • Size 24KB
        • SHA256 7688ebdffc98433eef8aada293a8c4beec6d6acfc0e1f91ca8eb2f1c350e7cec
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.Graphics.dll

        • Path C:\Windows\assembly\tmp\VCG6HKRC\Microsoft.Xna.Framework.Graphics.dll
        • Size 417KB
        • SHA256 39aed7fd8e308ccace5ce9390256f1c829ca72c2eccd97d4a0f629f24015d3a5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Xna.Framework.Net.dll

        • Path C:\Windows\assembly\tmp\Z9ISMGG2\Microsoft.Xna.Framework.Net.dll
        • Size 53KB
        • SHA256 3c0b37068ad56193fd613eb8f6bd321e7e08a99b9cf85606ccddf060afb1263b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 24.0MB
        • SHA256 7394190d473c58c3e613db43b6b1bf3a69d35a897070044d8d16ba6cd77c9f5e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {b076601b-68b2-4dc2-9759-c4ab742fa9c9}_OnDiskSnapshotProp

        • Path \??\Volume{a9930792-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{b076601b-68b2-4dc2-9759-c4ab742fa9c9}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 5e81101da0a1eb6f93bf80f66117e0d9b17e2246e79195b2acbf5c507413bcc8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3536-27-0x000001564A0C0000-0x000001564A0D8000-memory.dmp

        memory/3536-36-0x0000015649DC0000-0x0000015649DCC000-memory.dmp

        memory/3536-45-0x000001564A0B0000-0x000001564A0BA000-memory.dmp

        memory/3536-33-0x0000000000BF0000-0x0000000000C5C000-memory.dmp

        memory/3536-39-0x000001564A100000-0x000001564A114000-memory.dmp

        memory/3536-30-0x000001564A0E0000-0x000001564A0F8000-memory.dmp

        memory/3536-42-0x000001564A0A0000-0x000001564A0AC000-memory.dmp

        memory/3536-48-0x0000000000C60000-0x0000000000C76000-memory.dmp

        memory/3536-24-0x0000000000B40000-0x0000000000BEA000-memory.dmp

        memory/3536-21-0x0000015649DB0000-0x0000015649DBC000-memory.dmp