Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    16/05/2026, 14:47

General

  • Target
    RobloxPlayerBeta.exe
  • Size 121.2MB
  • Sample260516-r5wkfae16w
  • SHA256 4f5bf65e87ced8e5bb263eeccb63606668982d9d79f0963a5c253162754462e8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10

Malware Config

Signatures

  • Drops desktop.ini file(s) 3 IoCs
  • Checks processor information in registry 2 TTPs 18 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: LoadsDriver 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 22 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\RobloxPlayerBeta.exe
    "C:\Users\Admin\AppData\Local\Temp\RobloxPlayerBeta.exe"
    1⤵
      PID:3764
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1952
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe"
        2⤵
        • Drops desktop.ini file(s)
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4240
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1992 -prefsLen 27100 -prefMapHandle 1996 -prefMapSize 270279 -ipcHandle 2060 -initialChannelId {9415ac28-5a8a-47b4-bd48-6c0010f34322} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
          3⤵
            PID:1572
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2432 -prefsLen 27136 -prefMapHandle 2436 -prefMapSize 270279 -ipcHandle 2448 -initialChannelId {88c35465-f5c0-4a72-b3e0-775f0bd97bec} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
            3⤵
              PID:3360
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4044 -prefsLen 27277 -prefMapHandle 4048 -prefMapSize 270279 -jsInitHandle 4052 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4060 -initialChannelId {2d14579c-80f4-4dee-8fdb-de525b4e73ca} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
              3⤵
              • Checks processor information in registry
              PID:476
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4212 -prefsLen 27277 -prefMapHandle 4216 -prefMapSize 270279 -ipcHandle 4300 -initialChannelId {aeb32f8b-37c2-4792-b8f2-64255e63c900} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
              3⤵
                PID:2404
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2632 -prefsLen 34776 -prefMapHandle 1244 -prefMapSize 270279 -jsInitHandle 3392 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4020 -initialChannelId {cf78f1d7-c01b-4bf7-be45-d5f8f6a9278e} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                3⤵
                • Checks processor information in registry
                PID:5080
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 4888 -prefsLen 35013 -prefMapHandle 4892 -prefMapSize 270279 -ipcHandle 4900 -initialChannelId {53f631be-d4ab-4096-a235-db8fae3938b1} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                3⤵
                • Checks processor information in registry
                PID:4236
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5164 -prefsLen 32952 -prefMapHandle 5168 -prefMapSize 270279 -jsInitHandle 5172 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5180 -initialChannelId {5ab9c06a-9561-40a0-8193-2f18de07da47} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                3⤵
                • Checks processor information in registry
                PID:3692
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5200 -prefsLen 32952 -prefMapHandle 5204 -prefMapSize 270279 -jsInitHandle 5208 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5216 -initialChannelId {efc5c445-e970-4437-946b-4d450c68a072} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                3⤵
                • Checks processor information in registry
                PID:1440
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5612 -prefsLen 32952 -prefMapHandle 5616 -prefMapSize 270279 -jsInitHandle 5620 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5196 -initialChannelId {5463dab2-b3ce-47e3-a414-dcb72f230c07} -parentPid 4240 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4240" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                3⤵
                • Checks processor information in registry
                PID:1980

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                F58F0605C722D0D848D03D88AC8E3E50223F57B0

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\cache2\entries\F58F0605C722D0D848D03D88AC8E3E50223F57B0
                • Size 13KB
                • SHA256 90bd90d430eaa819d931c59cc3ff59eb0ad56f96502f51bf5c5986a51c180cc5
                • MD5 SHA1 SHA512 SSDEEP TLSH

                tmpaddon

                • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
                • Size 11KB
                • SHA256 ddf3ba4e25a622276755133e0cce5605b83719c7cab3546e09acbfed00d6a986
                • MD5 SHA1 SHA512 SSDEEP TLSH

                tmpaddon

                • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
                • Size 502KB
                • SHA256 87862f4bc8559fbe578389a9501dc01c4c585edb4bb03b238493327296d60171
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\db\data.safe.tmp
                • Size 6KB
                • SHA256 14dac9a28ce7628984d2bfa881fb8159c78d33f9cc0b3ec53285b950419cbe5a
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\db\data.safe.tmp
                • Size 6KB
                • SHA256 f3fbf14656ab184b67c19542a24ba5911ecbac60a15ecfc9a368cbf725961f5d
                • MD5 SHA1 SHA512 SSDEEP TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\events\events
                • Size 1KB
                • SHA256 64925b87a2d8f23baeece4559a929503b0ae1a2d8e54b52f8b34ae80291eee4b
                • MD5 SHA1 SHA512 TLSH

                04224a6f-c16b-4564-9b5e-3e534d87b454

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\pending_pings\04224a6f-c16b-4564-9b5e-3e534d87b454
                • Size 15KB
                • SHA256 e7625a5a960d94a41f085166b74f572b949819907d6535026aa89f80b2d318ac
                • MD5 SHA1 SHA512 SSDEEP TLSH

                177df23a-9706-46e1-90c9-27e79a24ba76

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\pending_pings\177df23a-9706-46e1-90c9-27e79a24ba76
                • Size 2KB
                • SHA256 9e3e748fbeca96ce0cb11c6d44231df8889488554a345e28b1e75c9df872a7b1
                • MD5 SHA1 SHA512 TLSH

                20573cbc-4b37-4505-876a-f028cd0cca98

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\pending_pings\20573cbc-4b37-4505-876a-f028cd0cca98
                • Size 883B
                • SHA256 6deb1b06cddac96cd3aea8b0790de074470cfe0275fb986ef4b83602dc7ad2b5
                • MD5 SHA1 SHA512 TLSH

                2dad838b-88b4-46d1-a787-5b576eb61abb

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\pending_pings\2dad838b-88b4-46d1-a787-5b576eb61abb
                • Size 235B
                • SHA256 f3191be43a1f4460ad66444c3efcac12d01029c9d2cad4b1208bc97f2d3774ae
                • MD5 SHA1 SHA512 TLSH

                4d35400f-224f-4ebc-9025-12cb0f926331

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\pending_pings\4d35400f-224f-4ebc-9025-12cb0f926331
                • Size 235B
                • SHA256 1b1c1ddde15bf37cf555d6df579c00727c17ab89e3164e2ad575e53db902c449
                • MD5 SHA1 SHA512 TLSH

                9376afae-8a0a-45b2-9d46-84e18de7212a

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\datareporting\glean\pending_pings\9376afae-8a0a-45b2-9d46-84e18de7212a
                • Size 886B
                • SHA256 22707f78f0118264778e4ebca6cdbf3f1d0b89cd166fd4e27426aa8700740334
                • MD5 SHA1 SHA512 TLSH

                extensions.json

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\extensions.json
                • Size 16KB
                • SHA256 3d7e46bede27ac6da93fce67bf7b00406d03457ce74c7c68594c128bbd970ac7
                • MD5 SHA1 SHA512 SSDEEP TLSH

                gmpopenh264.dll

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\gmp-gmpopenh264\2.6.0\gmpopenh264.dll
                • Size 1.1MB
                • SHA256 37c005a7789747b412d6c0a6a4c30d15732da3d857b4f94b744be1a67231b651
                • MD5 SHA1 SHA512 SSDEEP TLSH

                gmpopenh264.info

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\gmp-gmpopenh264\2.6.0\gmpopenh264.info
                • Size 116B
                • SHA256 fe7686a6281f0ab519c32c788ce0da0d01640425018dcffcfcb81105757f6fe6
                • MD5 SHA1 SHA512 TLSH

                manifest.json

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\gmp-widevinecdm\4.10.2934.0\manifest.json
                • Size 1001B
                • SHA256 25ac9b79df29fa869b4c9f4ca3bdbc3a85f6122f5a8efab5a1216d577099becc
                • MD5 SHA1 SHA512 TLSH

                widevinecdm.dll

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\gmp-widevinecdm\4.10.2934.0\widevinecdm.dll
                • Size 18.9MB
                • SHA256 875a76af5b19622842c9b37fe77dce10ee83f27adbdcfcde9c814d4e1226d023
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs-1.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\prefs-1.js
                • Size 7KB
                • SHA256 c69df04dc5ccb05d4b25ed0cbabda3ed9baad93677d30549b89c34c5712fd5f9
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\prefs.js
                • Size 6KB
                • SHA256 40d9500e68172c30a1028ec0e67dd7f236403c47ee39103dc61bfdd467358e83
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\prefs.js
                • Size 6KB
                • SHA256 3a49bbe739c77d02b9ad57fb27a8017de975df1377af11fe466ba44d4a18a004
                • MD5 SHA1 SHA512 SSDEEP TLSH

                recovery.baklz4

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\sessionstore-backups\recovery.baklz4
                • Size 1KB
                • SHA256 450309c13e82a0c273aa293cc1d0d3ac61b2eed2303d92a3843b691592564460
                • MD5 SHA1 SHA512 TLSH

                recovery.jsonlz4

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\sessionstore-backups\recovery.jsonlz4
                • Size 1KB
                • SHA256 d3875b5ed6339a9b792b573a9640d5a887d44b551aaddc62a1d5eafd0e62e7c0
                • MD5 SHA1 SHA512 TLSH

                3870112724rsegmnoittet-es.sqlite

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\kfuxsl7p.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                • Size 6.1MB
                • SHA256 a340d5d06eb7b9e603318279171c63ced60e93373de4ea206225dab6c5640082
                • MD5 SHA1 SHA512 SSDEEP TLSH