Analysis

  • max time kernel
    122s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07/09/2024, 16:59

General

  • Target

    Crystal Client Launcher.exe

  • Size

    133.2MB

  • MD5

    f2d952c283c535a6c0247f610d5cf6f2

  • SHA1

    eddf220e263c4b8610606f538e0b28574ea359f4

  • SHA256

    8dc40dcd2d9d2c65785999249112fe7729d546f378bd85828a65c29db9078628

  • SHA512

    9d395fce49cda66e2746abece61ff0d290d43842dcd0a78d4fdb76d145f03d9856ce4f0ad6589bc135700608769fe2b58b798a7f2b64bb64945df70ec761bd4a

  • SSDEEP

    1572864:P2HVo9Ck+yOBBdJAVwlymAETslfp409t:v9Ctx3tu

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe
    "C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe"
    1⤵
    • Checks computer location settings
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2452
    • C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe
      "C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe" --type=gpu-process --field-trial-handle=956,3896884502653065101,10711045667087909887,131072 --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=964 /prefetch:2
      2⤵
        PID:1532
      • C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe
        "C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=956,3896884502653065101,10711045667087909887,131072 --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=1276 /prefetch:8
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2372
      • C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe
        "C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\crystalclient-launcher" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --no-sandbox --no-zygote --force-device-scale-factor=1 --field-trial-handle=956,3896884502653065101,10711045667087909887,131072 --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=1476 /prefetch:1
        2⤵
        • Checks computer location settings
        • Suspicious behavior: EnumeratesProcesses
        PID:2588
      • C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe
        "C:\Users\Admin\AppData\Local\Temp\Crystal Client Launcher.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\crystalclient-launcher" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --enable-sandbox --force-device-scale-factor=1 --field-trial-handle=956,3896884502653065101,10711045667087909887,131072 --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=2332 /prefetch:1
        2⤵
        • Checks computer location settings
        PID:2996

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CabDF69.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\TarDFAA.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • C:\Users\Admin\AppData\Roaming\crystalclient-launcher\0e5d1f63-5ff6-4bc2-b6b1-f615a8b6a3e0.tmp

      Filesize

      59B

      MD5

      78bfcecb05ed1904edce3b60cb5c7e62

      SHA1

      bf77a7461de9d41d12aa88fba056ba758793d9ce

      SHA256

      c257f929cff0e4380bf08d9f36f310753f7b1ccb5cb2ab811b52760dd8cb9572

      SHA512

      2420dff6eb853f5e1856cdab99561a896ea0743fcff3e04b37cb87eddf063770608a30c6ffb0319e5d353b0132c5f8135b7082488e425666b2c22b753a6a4d73

    • C:\Users\Admin\AppData\Roaming\crystalclient-launcher\5d350d0f-1413-4642-ae51-63a7e1b301ea.tmp

      Filesize

      57B

      MD5

      58127c59cb9e1da127904c341d15372b

      SHA1

      62445484661d8036ce9788baeaba31d204e9a5fc

      SHA256

      be4b8924ab38e8acf350e6e3b9f1f63a1a94952d8002759acd6946c4d5d0b5de

      SHA512

      8d1815b277a93ad590ff79b6f52c576cf920c38c4353c24193f707d66884c942f39ff3989530055d2fade540ade243b41b6eb03cd0cc361c3b5d514cca28b50a

    • C:\Users\Admin\AppData\Roaming\crystalclient-launcher\Cache\f_000001

      Filesize

      441KB

      MD5

      a78ad14e77147e7de3647e61964c0335

      SHA1

      cecc3dd41f4cea0192b24300c71e1911bd4fce45

      SHA256

      0d6803758ff8f87081fafd62e90f0950dfb2dd7991e9607fe76a8f92d0e893fa

      SHA512

      dde24d5ad50d68fc91e9e325d31e66ef8f624b6bb3a07d14ffed1104d3ab5f4ef1d7969a5cde0dfbb19cb31c506f7de97af67c2f244f7e7e8e10648ea8321101

    • C:\Users\Admin\AppData\Roaming\crystalclient-launcher\Code Cache\js\index-dir\the-real-index

      Filesize

      48B

      MD5

      e0bab2dbf76bc002d237f568b043ddb1

      SHA1

      6579138b996bdc54c6497f4d70d07eb5edf3f411

      SHA256

      7ca80dd57fe097eb38b8062806edfda6d665b6b69ec28b940e3245c4932d61b5

      SHA512

      3c62eed2038087117e6df274fbea83593bb661058f0efd86637a507cb7cddb7abfb08778e8b6eecf6a0913faff4ced59d07a3aa6ed979b93c2ba50086ff96753

    • C:\Users\Admin\AppData\Roaming\crystalclient-launcher\Session Storage\CURRENT

      Filesize

      16B

      MD5

      46295cac801e5d4857d09837238a6394

      SHA1

      44e0fa1b517dbf802b18faf0785eeea6ac51594b

      SHA256

      0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

      SHA512

      8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

    • C:\Users\Admin\AppData\Roaming\crystalclient-launcher\TransportSecurity

      Filesize

      689B

      MD5

      5fa6738c0b4f6798f5c9d9ef9b72ef8e

      SHA1

      e706868c97aa705b68ec1264f83b71a438027ab6

      SHA256

      d208a5fd2da621a6b20b007f15989e281881323fbfe3fd0460dac5e2f271e233

      SHA512

      4206d5eeb11efec645f558959acca6a3dfcd3cf6c947167031806cf9ee70ae2489547298e6aaef599c792b0be5dea3d4e2fd9adf8dc93475ac78f0e3f6d0a869

    • memory/1532-1-0x0000000000060000-0x0000000000061000-memory.dmp

      Filesize

      4KB

    • memory/1532-35-0x0000000077690000-0x0000000077691000-memory.dmp

      Filesize

      4KB