Analysis

  • max time kernel
    600s
  • max time network
    577s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 13:28

General

  • Target
    Crystal-Client-Launcher-setup.exe
  • Size 62.3MB
  • Sample260620-qq5dcsfs8j
  • SHA256 24036f23f1be0d4024c16ee49234bbe9df2fbac068ed9df0ed47f56d596d158a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 20 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies trusted root certificate store through registry 1 TTPs 2 IoCs

    A root certificate was added, modified, or removed in the trusted certificate store registry paths.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Crystal-Client-Launcher-setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Crystal-Client-Launcher-setup.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5808
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq Crystal Client Launcher.exe" | find "Crystal Client Launcher.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3944
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq Crystal Client Launcher.exe"
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:588
      • C:\Windows\SysWOW64\find.exe
        find "Crystal Client Launcher.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2608
  • C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe
    "C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies trusted root certificate store through registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe
      "C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe" --type=gpu-process --field-trial-handle=1428,13797155058494828996,14765033341551581055,131072 --disable-features=PlzServiceWorker,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --user-data-dir="C:\Users\Admin\AppData\Roaming\crystalclient-launcher" --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAANAAAAEAAAAAAAAAABAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1432 /prefetch:2
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1652
    • C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe
      "C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1428,13797155058494828996,14765033341551581055,131072 --disable-features=PlzServiceWorker,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\crystalclient-launcher" --mojo-platform-channel-handle=1728 /prefetch:8
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:1692
    • C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe
      "C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\crystalclient-launcher" --app-path="C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\resources\app.asar" --no-sandbox --no-zygote --force-device-scale-factor=1 --field-trial-handle=1428,13797155058494828996,14765033341551581055,131072 --disable-features=PlzServiceWorker,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=4 --mojo-platform-channel-handle=2388 /prefetch:1
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:1316
    • C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe
      "C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\Crystal Client Launcher.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\crystalclient-launcher" --app-path="C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\resources\app.asar" --enable-sandbox --force-device-scale-factor=1 --field-trial-handle=1428,13797155058494828996,14765033341551581055,131072 --disable-features=PlzServiceWorker,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3420 /prefetch:1
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4280
  • C:\Windows\System32\CompPkgSrv.exe
    C:\Windows\System32\CompPkgSrv.exe -Embedding
    1⤵
      PID:1820

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          D3DCompiler_47.dll

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\D3DCompiler_47.dll
          • Size 4.3MB
          • SHA256 44422e6936dc72b7ac5ed16bb8bcae164b7554513e52efb66a3e942cec328a47
          • MD5 SHA1 SHA512 SSDEEP TLSH

          chrome_100_percent.pak

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\chrome_100_percent.pak
          • Size 138KB
          • SHA256 c48e6d360aee16159d4be43f9144f77d3275a87b3f77eae548e357601c55fc16
          • MD5 SHA1 SHA512 SSDEEP TLSH

          chrome_200_percent.pak

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\chrome_200_percent.pak
          • Size 202KB
          • SHA256 b820d19a7a8ce9d12a26837f967f983e45b07550b49e7b9a25e57b417c5f6fd9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ffmpeg.dll

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\ffmpeg.dll
          • Size 2.6MB
          • SHA256 61c6bd5fee2c150265241a15379c4053b174b1cd7687749629afcdbd1264a02e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          icudtl.dat

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\icudtl.dat
          • Size 9.7MB
          • SHA256 b62b7240837172959299dc3be44fffa83dc374353154eca1612e1bde330aa8fa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libegl.dll

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\libegl.dll
          • Size 431KB
          • SHA256 994972c1bc515c199552d50e97ad217ae15a3eed16db06181c7df50e743e8a56
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libglesv2.dll

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\libglesv2.dll
          • Size 7.6MB
          • SHA256 1ebc1da8d7e463a5d3dc127a632989ef35cfbd94cb18bf1f8ee790f172d43703
          • MD5 SHA1 SHA512 SSDEEP TLSH

          en-US.pak

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\locales\en-US.pak
          • Size 104KB
          • SHA256 699b6d7f05a484e76d3e1197a656247863e570f03cc02634c9dc42078a5c5007
          • MD5 SHA1 SHA512 SSDEEP TLSH

          resources.pak

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\resources.pak
          • Size 4.9MB
          • SHA256 75ff04d991c2a203105525a1ccb200a461717ce7b86ada4be092fe903d95cdc8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.asar

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\resources\app.asar
          • Size 49.4MB
          • SHA256 4337cf5c5f29de7b001baf1f42e8d4c6cb483d170a54b2ec3494b5dbbf1e0a98
          • MD5 SHA1 SHA512 SSDEEP TLSH

          v8_context_snapshot.bin

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\v8_context_snapshot.bin
          • Size 160KB
          • SHA256 315f5ed966a1f3a89c94d1b78b9bf70e59a2869601cf6551b2c1fd3e3b008447
          • MD5 SHA1 SHA512 SSDEEP TLSH

          vk_swiftshader.dll

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\vk_swiftshader.dll
          • Size 4.3MB
          • SHA256 a648cd4671b12b469c4d2de20c2ba2429c9388c0f9d4b3d9d2244853d0e5acb5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          vk_swiftshader_icd.json

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\vk_swiftshader_icd.json
          • Size 106B
          • SHA256 32d83ff113fef532a9f97e0d2831f8656628ab1c99e9060f0332b1532839afd9
          • MD5 SHA1 SHA512 TLSH

          vulkan-1.dll

          • Path C:\Users\Admin\AppData\Local\Programs\Crystal Client Launcher\vulkan-1.dll
          • Size 715KB
          • SHA256 22bb65dd206ce7ee10c05557933a04a04144e1a8228d2a9d1e9d704b0b1b2f7c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StdUtils.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsaE9A1.tmp\StdUtils.dll
          • Size 100KB
          • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsaE9A1.tmp\System.dll
          • Size 12KB
          • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          UAC.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsaE9A1.tmp\UAC.dll
          • Size 14KB
          • SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
          • MD5 SHA1 SHA512 SSDEEP TLSH

          WinShell.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsaE9A1.tmp\WinShell.dll
          • Size 3KB
          • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
          • MD5 SHA1 SHA512 TLSH

          nsDialogs.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsaE9A1.tmp\nsDialogs.dll
          • Size 9KB
          • SHA256 1e40211af65923c2f4fd02ce021458a7745d28e2f383835e3015e96575632172
          • MD5 SHA1 SHA512 SSDEEP TLSH

          nsExec.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsaE9A1.tmp\nsExec.dll
          • Size 6KB
          • SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
          • MD5 SHA1 SHA512 SSDEEP TLSH

          nsis7z.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsaE9A1.tmp\nsis7z.dll
          • Size 424KB
          • SHA256 b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592
          • MD5 SHA1 SHA512 SSDEEP TLSH

          default.exc

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.exc
          • Size 2B
          • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
          • MD5 SHA1 SHA512

          the-real-index

          • Path C:\Users\Admin\AppData\Roaming\crystalclient-launcher\Code Cache\js\index-dir\the-real-index
          • Size 96B
          • SHA256 dbc54539a9605d3227c8f74d34a545952c5a26c4cde4dffa3942e2d3813b9a35
          • MD5 SHA1 SHA512 TLSH

          the-real-index~RFe59a771.TMP

          • Path C:\Users\Admin\AppData\Roaming\crystalclient-launcher\Code Cache\js\index-dir\the-real-index~RFe59a771.TMP
          • Size 48B
          • SHA256 2af77e7c89383682d3a178e60b96ef6a7b537a567600c681292563396c58f125
          • MD5 SHA1 SHA512

          Network Persistent State~RFe5a6080.TMP

          • Path C:\Users\Admin\AppData\Roaming\crystalclient-launcher\Network Persistent State~RFe5a6080.TMP
          • Size 59B
          • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
          • MD5 SHA1 SHA512 TLSH

          CURRENT

          • Path C:\Users\Admin\AppData\Roaming\crystalclient-launcher\Session Storage\CURRENT
          • Size 16B
          • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
          • MD5 SHA1 SHA512

          b4994f47-7622-4a0e-a6de-bf92cb31defb.tmp

          • Path C:\Users\Admin\AppData\Roaming\crystalclient-launcher\b4994f47-7622-4a0e-a6de-bf92cb31defb.tmp
          • Size 1KB
          • SHA256 c4afc6b1496778326b006c9d065d2c30cbfbda5dc07ae40f451d39e36a537c5a
          • MD5 SHA1 SHA512 TLSH

          bc2976de-d997-4344-a731-6a53ce2b6297.tmp

          • Path C:\Users\Admin\AppData\Roaming\crystalclient-launcher\bc2976de-d997-4344-a731-6a53ce2b6297.tmp
          • Size 57B
          • SHA256 be4b8924ab38e8acf350e6e3b9f1f63a1a94952d8002759acd6946c4d5d0b5de
          • MD5 SHA1 SHA512 TLSH

          memory/1652-498-0x00000299D6100000-0x00000299D612F000-memory.dmp

          memory/1652-246-0x00007FFBF11D0000-0x00007FFBF11D1000-memory.dmp

          memory/4280-503-0x000002A3C69E0000-0x000002A3C6A0F000-memory.dmp

          memory/4280-304-0x00007FFBF1240000-0x00007FFBF1241000-memory.dmp

          memory/4280-305-0x00007FFBF10A0000-0x00007FFBF10A1000-memory.dmp