Analysis

  • max time kernel
    27s
  • max time network
    37s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/10/2026, 22:58

General

  • Target
    osu_.exe
  • Size 4.3MB
  • Sample261020-2xshxsys4k
  • SHA256 3adc2d001aacced5f92ba8ae24121980d5e23f5653f37d14cf4765bca1abd9f9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Network Service Discovery 1 TTPs 1 IoCs

    Attempt to gather information on host's network.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 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 processor information in registry 2 TTPs 4 IoCs

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

  • Modifies registry class 2 IoCs
  • Modifies system certificate store 2 TTPs 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\osu_.exe
    "C:\Users\Admin\AppData\Local\Temp\osu_.exe"
    1⤵
    • Checks computer location settings
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3192
    • C:\Users\Admin\AppData\Local\osu!\osu!.exe
      "C:\Users\Admin\AppData\Local\osu!\osu!.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:344
      • C:\Users\Admin\AppData\Local\osu!\osu!.exe
        "C:\Users\Admin\AppData\Local\osu!\osu!.exe"
        3⤵
          PID:3064
    • C:\Windows\System32\GameBarPresenceWriter.exe
      "C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer
      1⤵
      • Network Service Discovery
      PID:4024
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:3840
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
      1⤵
      • Checks processor information in registry
      • Modifies registry class
      PID:2052
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
      1⤵
      • Checks processor information in registry
      • Modifies registry class
      PID:4192

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          5A6896595A9B5FF7A8254147F2B2367B

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\5A6896595A9B5FF7A8254147F2B2367B
          • Size 22KB
          • SHA256 f9ce48802499eed55d2c92b0c6c1f394f445c402ce5a14f42d3055e7dab2eca5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          77003E887FC21E505B9E28CBA30E18ED_8ACE642DC0A43382FABA7AE806561A50

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77003E887FC21E505B9E28CBA30E18ED_8ACE642DC0A43382FABA7AE806561A50
          • Size 2KB
          • SHA256 6a7a2243cd47a14753c02f921c2779a142f1e1eadccc5e34b133f359b1207938
          • MD5 SHA1 SHA512 TLSH

          EF7234CDBB1649702229F955C785C39F

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EF7234CDBB1649702229F955C785C39F
          • Size 785B
          • SHA256 9e153cc9331fb887cacd6f08cfa3dc5aac7b9b26b4b9cfa75d2ac57288e9142a
          • MD5 SHA1 SHA512 TLSH

          5A6896595A9B5FF7A8254147F2B2367B

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\5A6896595A9B5FF7A8254147F2B2367B
          • Size 290B
          • SHA256 669c4f13d30c92942979fe9a4dbaa068b41c22409a7c9da758579fa9e5dfc8c2
          • MD5 SHA1 SHA512 TLSH

          77003E887FC21E505B9E28CBA30E18ED_8ACE642DC0A43382FABA7AE806561A50

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77003E887FC21E505B9E28CBA30E18ED_8ACE642DC0A43382FABA7AE806561A50
          • Size 422B
          • SHA256 d4089750c242746ca3606657f5972aa55b17f346d2a63049bc5a599dd5bf2306
          • MD5 SHA1 SHA512 TLSH

          EF7234CDBB1649702229F955C785C39F

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EF7234CDBB1649702229F955C785C39F
          • Size 308B
          • SHA256 7fa433f925f0ead02675d7bb5f3dadc542022c356d7e704f683fd95653118491
          • MD5 SHA1 SHA512 TLSH

          update.log

          • Path C:\Users\Admin\AppData\Local\osu!\Logs\update.log
          • Size 4KB
          • SHA256 51b78414bb202c7d4128f90d6d59e0418878f2b48896bb7cc29d14fbe465a46c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          update.log

          • Path C:\Users\Admin\AppData\Local\osu!\Logs\update.log
          • Size 370B
          • SHA256 cbd45eda87defe4a81b490a3535d01e91053846fd2292d489b529dd7a7eebbb5
          • MD5 SHA1 SHA512 TLSH

          update.log

          • Path C:\Users\Admin\AppData\Local\osu!\Logs\update.log
          • Size 1KB
          • SHA256 9af321d91b886610e36053ece5fc5e4e13d48417cd5c0d1c3f168faaad276eae
          • MD5 SHA1 SHA512 TLSH

          update.log

          • Path C:\Users\Admin\AppData\Local\osu!\Logs\update.log
          • Size 3KB
          • SHA256 48101668f8461b9b05f11c5271cb810d89324fdb86924ca7430febe680987137
          • MD5 SHA1 SHA512 TLSH

          update.log

          • Path C:\Users\Admin\AppData\Local\osu!\Logs\update.log
          • Size 325B
          • SHA256 c4872439563c99a6675ce86a7b722c3c0245c739b64ea7ffe98864aa189a847a
          • MD5 SHA1 SHA512 TLSH

          update.log

          • Path C:\Users\Admin\AppData\Local\osu!\Logs\update.log
          • Size 583B
          • SHA256 d831203b48f6c85665198375cf9ba5c8d2d8b02d32f2c6aa2cd37737fb5272dd
          • MD5 SHA1 SHA512 TLSH

          update_success.log

          • Path C:\Users\Admin\AppData\Local\osu!\Logs\update_success.log
          • Size 6KB
          • SHA256 dd9e1707da8e327b499138656208d425aa0d956474b7b769d695a41f1e2a6326
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Ink.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\Microsoft.Ink.dll
          • Size 456KB
          • SHA256 1081255de41aafd51bc8f4e4404ef02209e59625ae65fa926657df5690716c5d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          OpenTK.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\OpenTK.dll
          • Size 4.2MB
          • SHA256 b415f3e061d9758316074dcbf31d6dba48cb0b89405254db94ead0e43ed88511
          • MD5 SHA1 SHA512 SSDEEP TLSH

          avcodec-51.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\avcodec-51.dll
          • Size 4.2MB
          • SHA256 e512fe71775f767285cfb3310d8f1ac042639ab3d1a02ca3675b82cfd3cbc702
          • MD5 SHA1 SHA512 SSDEEP TLSH

          avformat-52.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\avformat-52.dll
          • Size 711KB
          • SHA256 b155e2bfce3adbbc45d01ec991160ab4fab7e8d33a0ab835463da860d3693867
          • MD5 SHA1 SHA512 SSDEEP TLSH

          avutil-49.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\avutil-49.dll
          • Size 77KB
          • SHA256 e51523f179a8ab8101eaa3e587c5e1dfe6c19636ecfa582896833f06d2e79064
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bass.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\bass.dll
          • Size 125KB
          • SHA256 67766e574baa86eb8317623acc2957e8e28944bb801a8c10a0fa9d29fdb4cfd3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bass_fx.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\bass_fx.dll
          • Size 50KB
          • SHA256 81111a1cb6f8f362cf232e21098c563fe1409160300f2a254f2a1762e5d4db04
          • MD5 SHA1 SHA512 SSDEEP TLSH

          d3dcompiler_47.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\d3dcompiler_47.dll
          • Size 3.3MB
          • SHA256 efbdbbcd0d954f8fdc53467de5d89ad525e4e4a9cfff8a15d07c6fdb350c407f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libEGL.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\libEGL.dll
          • Size 146KB
          • SHA256 041a631d114e45a11c43efe3b7712a10ce8052cf4b313c7f4577a5b9adb78072
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libGLESv2.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\libGLESv2.dll
          • Size 3.2MB
          • SHA256 cbfc536b80405da7b5c37c97fceaf2310daf58d78c806140367b8f513352342f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!auth.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\osu!auth.dll
          • Size 15.2MB
          • SHA256 d30b1d334a8b2d9e833e48a657ff1647a74f96b49d296522a4979428db1bdc22
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!gameplay.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\osu!gameplay.dll
          • Size 30.4MB
          • SHA256 ba3467a8db908d81a0729f78fdc5c8f1d1595d3da4e5a9a34be9a16e06da9f87
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!seasonal.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\osu!seasonal.dll
          • Size 3.5MB
          • SHA256 27decc7e0c959078325eb800b04626d6b9498b33cf118850c0e7b78dea470500
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!ui.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\osu!ui.dll
          • Size 24.8MB
          • SHA256 22e041674931161e2c2c15241fb6c5f3125f8d57e4660ef7c0b7fb64449253c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          pthreadGC2.dll

          • Path C:\Users\Admin\AppData\Local\osu!\_pending\pthreadGC2.dll
          • Size 75KB
          • SHA256 b18c8437663002e4a4f06c4c1b7bec71fe13e5e6bbb927c68a273de02a5c690f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!.cfg

          • Path C:\Users\Admin\AppData\Local\osu!\osu!.cfg
          • Size 856B
          • SHA256 d037fe50380998945e319279b06903c9336c304c0b9b47e8e89d3292c76fb6b4
          • MD5 SHA1 SHA512 TLSH

          osu!.exe

          • Path C:\Users\Admin\AppData\Local\osu!\osu!.exe
          • Size 4.3MB
          • SHA256 3adc2d001aacced5f92ba8ae24121980d5e23f5653f37d14cf4765bca1abd9f9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!auth.dll

          • Path C:\Users\Admin\AppData\Local\osu!\osu!auth.dll
          • Size 11.3MB
          • SHA256 d1ce5937f2edfd416437dcd7f2832ab8520fdbca1b1619b85b6c6893183da5ac
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!gameplay.dll

          • Path C:\Users\Admin\AppData\Local\osu!\osu!gameplay.dll
          • Size 17.3MB
          • SHA256 8b9a1c3257d805af5f28e72ba497842c4e3513b7ee469f4507582126c8f62168
          • MD5 SHA1 SHA512 SSDEEP TLSH

          osu!ui.dll

          • Path C:\Users\Admin\AppData\Local\osu!\osu!ui.dll
          • Size 18.1MB
          • SHA256 d12c2c7722b7c25faf797b4a55796ad1484a942539173a1778435d1f26745a6b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          desktop.ini

          • Path C:\Users\Admin\Videos\Captures\desktop.ini
          • Size 190B
          • SHA256 86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2
          • MD5 SHA1 SHA512 TLSH

          memory/344-60-0x000000000A0A0000-0x000000000A5CC000-memory.dmp

          memory/344-61-0x000000000A000000-0x000000000A022000-memory.dmp

          memory/344-62-0x000000000A680000-0x000000000A9D4000-memory.dmp

          memory/3064-360-0x000000000D4F0000-0x000000000D844000-memory.dmp

          memory/3064-359-0x000000000D880000-0x000000000DCAC000-memory.dmp

          memory/3064-356-0x000000006F650000-0x000000007058C000-memory.dmp

          memory/3064-344-0x0000000006B90000-0x0000000006BE6000-memory.dmp

          memory/3192-0-0x0000000000330000-0x0000000000786000-memory.dmp

          memory/3192-15-0x0000000006430000-0x000000000646C000-memory.dmp

          memory/3192-16-0x0000000006950000-0x000000000695A000-memory.dmp

          memory/3192-14-0x00000000051D0000-0x00000000051E0000-memory.dmp

          memory/3192-17-0x00000000051D0000-0x00000000051E0000-memory.dmp

          memory/3192-32-0x00000000051D0000-0x00000000051E0000-memory.dmp

          memory/3192-2-0x0000000005280000-0x0000000005312000-memory.dmp

          memory/3192-1-0x0000000005790000-0x0000000005D34000-memory.dmp

          memory/3192-33-0x00000000051D0000-0x00000000051E0000-memory.dmp