Analysis

  • user interaction
    yes
  • max time kernel
    130s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 14:18

General

  • Target
    Discord-Username-Checker-main/Checker.py
  • Size 3KB
  • Sample260727-rmjg6avarg
  • SHA256 e33e66d51d2e18712eb5bd53b376e2fdd90cb50198f8332a42f78c6663b1e361
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Checks processor information in registry 2 TTPs 23 IoCs

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

  • Modifies registry class 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 37 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:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Discord-Username-Checker-main\Checker.py
    1⤵
    • Executes a command shell one-liner
    • Modifies registry class
    PID:3048
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "C:\Users\Admin\AppData\Local\Temp\Discord-Username-Checker-main\Checker.py"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url C:\Users\Admin\AppData\Local\Temp\Discord-Username-Checker-main\Checker.py
        3⤵
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:692
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1960 -prefsLen 27098 -prefMapHandle 1964 -prefMapSize 270279 -ipcHandle 1756 -initialChannelId {a5fb9530-52ac-456e-8bda-bcd862b1e7d0} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
          4⤵
            PID:2244
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2432 -prefsLen 27134 -prefMapHandle 2436 -prefMapSize 270279 -ipcHandle 2444 -initialChannelId {b63cf13d-d353-4ef4-84c3-79ea8f8b9371} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
            4⤵
            • Checks processor information in registry
            PID:3400
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3824 -prefsLen 27323 -prefMapHandle 3828 -prefMapSize 270279 -jsInitHandle 3832 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3840 -initialChannelId {95da2db4-00e8-4d40-8ff7-8e7c6dd8ff61} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            4⤵
            • Checks processor information in registry
            PID:2888
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4004 -prefsLen 27323 -prefMapHandle 4008 -prefMapSize 270279 -ipcHandle 4088 -initialChannelId {28f62a0e-6a93-4ff8-b464-33b8d2acaa49} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            4⤵
              PID:4416
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4420 -prefsLen 34822 -prefMapHandle 4424 -prefMapSize 270279 -jsInitHandle 4428 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3092 -initialChannelId {4b85c2cd-f88b-47f4-b7d9-e06d8ff9a0b9} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              4⤵
              • Checks processor information in registry
              PID:2004
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 3016 -prefsLen 35010 -prefMapHandle 4872 -prefMapSize 270279 -ipcHandle 4680 -initialChannelId {91f536f0-8e61-4618-bfeb-3ee652526e6a} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              4⤵
              • Checks processor information in registry
              PID:5872
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5404 -prefsLen 32952 -prefMapHandle 5376 -prefMapSize 270279 -jsInitHandle 5380 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5472 -initialChannelId {91d80901-b544-4919-a829-f034abe85b84} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              4⤵
              • Checks processor information in registry
              PID:5268
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5356 -prefsLen 32952 -prefMapHandle 5352 -prefMapSize 270279 -jsInitHandle 5348 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5480 -initialChannelId {063de116-4732-4419-95f7-425606197925} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              4⤵
              • Checks processor information in registry
              PID:4972
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5768 -prefsLen 32952 -prefMapHandle 5772 -prefMapSize 270279 -jsInitHandle 5776 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5784 -initialChannelId {f317b55f-b30a-471c-9f04-b6c1b4d73b8e} -parentPid 692 -crashReporter "\\.\pipe\gecko-crash-server-pipe.692" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              4⤵
              • Checks processor information in registry
              PID:5656

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\db\data.safe.tmp
            • Size 6KB
            • SHA256 8058e887ed82e4bab2b24827fa2213da77e4be4fabde78106a0af43380693f9c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\db\data.safe.tmp
            • Size 7KB
            • SHA256 1c745a53cab2b190d30b0c88bada1bdf20ff328a1637063b3b6e3eca3b168d40
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\db\data.safe.tmp
            • Size 6KB
            • SHA256 9c98982bc1aca1aa23bd02b44f50b6d26fce9bf4942ce9ac6887f113daeb34ac
            • MD5 SHA1 SHA512 SSDEEP TLSH

            events

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\events\events
            • Size 1KB
            • SHA256 02c6251d61f3d37c626347896f1e9a9bbb6d4bb46411f4930c403df2a8fa41f3
            • MD5 SHA1 SHA512 TLSH

            23ca3488-d683-408d-9797-c29a6143f336

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\23ca3488-d683-408d-9797-c29a6143f336
            • Size 883B
            • SHA256 c1b3a07c1d01af8c07dc794603d81bb117072890857939fa030c92b3e58e0795
            • MD5 SHA1 SHA512 TLSH

            27c39393-9b25-44a4-b937-80db72d75493

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\27c39393-9b25-44a4-b937-80db72d75493
            • Size 15KB
            • SHA256 1eb349eec904791a38511601bd6b70cd6da8f404786d2b075746667239aadf7d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            49b6125e-3ddb-43b2-82b2-9b695943320b

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\49b6125e-3ddb-43b2-82b2-9b695943320b
            • Size 2KB
            • SHA256 c24c2d475aa8e561b9bf3c33db98956007b013278ec9cbb820d403cb35a98321
            • MD5 SHA1 SHA512 TLSH

            a0406b91-dc6c-41bd-b51b-467cb357bc1a

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\a0406b91-dc6c-41bd-b51b-467cb357bc1a
            • Size 235B
            • SHA256 a46774858d5ed092c3ce42712e69d724854b29b4b8c73e8831acd19af0b179a8
            • MD5 SHA1 SHA512 TLSH

            d980ee2b-5d26-4489-9474-70635d92b1cb

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\d980ee2b-5d26-4489-9474-70635d92b1cb
            • Size 235B
            • SHA256 96eb19c5dfb14ec08a0c1894bbdb4b53ec46a02ed4210c6de86dd964e86cb08c
            • MD5 SHA1 SHA512 TLSH

            fc42b0b2-2566-43a9-ad0f-50f7085baffa

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\fc42b0b2-2566-43a9-ad0f-50f7085baffa
            • Size 886B
            • SHA256 2980eb35c95f5cdbad4cf31ab66874fd3a7570dbce22b8afc4b5bec6a72e01d2
            • MD5 SHA1 SHA512 TLSH

            prefs-1.js

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\prefs-1.js
            • Size 6KB
            • SHA256 97cc98f6e6506e2df562d75bfdde3b6a9ccfbe79ee118741369bb42196962f24
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs.js

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\prefs.js
            • Size 6KB
            • SHA256 80a093cb40b4461fd710945dc18a727ba707235d02f56752353a6e6026e54046
            • MD5 SHA1 SHA512 SSDEEP TLSH

            sessionCheckpoints.json.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\sessionCheckpoints.json.tmp
            • Size 288B
            • SHA256 2fca1f29b73dd5b4159fa1eb16e69276482f5224ba7d2219a547039129a51f0e
            • MD5 SHA1 SHA512 TLSH

            memory/4724-0-0x0000019C09930000-0x0000019C099DE000-memory.dmp

            memory/4724-3-0x0000019C09930000-0x0000019C099DE000-memory.dmp