Resubmissions

16/07/2026, 05:11

260716-fvqqnadw5m

16/07/2026, 04:57

260716-flel2agy6t1

Analysis

  • geolocation tags

    eueuropefrfrance
  • user interaction
    yes
  • max time kernel
    79s
  • max time network
    81s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    16/07/2026, 04:57

General

  • Target
    https://github.com/IMXNOOBX/cs2-external-esp/releases/tag/release-13
  • Sample260716-flel2agy6t

Malware Config

Signatures

  • 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
  • NTFS ADS 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 13 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 13 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:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "https://github.com/IMXNOOBX/cs2-external-esp/releases/tag/release-13"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4504
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://github.com/IMXNOOBX/cs2-external-esp/releases/tag/release-13
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4856
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1960 -prefsLen 27097 -prefMapHandle 1988 -prefMapSize 270279 -ipcHandle 2064 -initialChannelId {e5e98c01-d55f-4724-a8cc-a3736ffb97d8} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:5048
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2432 -prefsLen 27133 -prefMapHandle 2436 -prefMapSize 270279 -ipcHandle 2456 -initialChannelId {2ed8c178-8c2c-43bd-b299-759e4072871b} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
            PID:2648
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3804 -prefsLen 25164 -prefMapHandle 3808 -prefMapSize 270279 -jsInitHandle 3812 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3820 -initialChannelId {2ebf2bf9-d288-4d9c-965f-3d39e482711c} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            3⤵
            • Checks processor information in registry
            PID:4652
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3968 -prefsLen 27274 -prefMapHandle 3972 -prefMapSize 270279 -ipcHandle 4040 -initialChannelId {894f9c4e-172a-4cb6-a9c5-adc41292b7bb} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            3⤵
              PID:4092
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3016 -prefsLen 34773 -prefMapHandle 3020 -prefMapSize 270279 -jsInitHandle 2636 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3004 -initialChannelId {f5887134-0f14-435c-8477-99ef3b38a88e} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              3⤵
              • Checks processor information in registry
              PID:1652
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5068 -prefsLen 35010 -prefMapHandle 5072 -prefMapSize 270279 -ipcHandle 5080 -initialChannelId {0d13dd76-4ea8-456c-bbc4-cbb6b0771ad2} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              3⤵
              • Checks processor information in registry
              PID:6068
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 1292 -prefsLen 32952 -prefMapHandle 1284 -prefMapSize 270279 -jsInitHandle 1288 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 904 -initialChannelId {85a0ed52-0d18-4395-b749-93066fc7859d} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              3⤵
              • Checks processor information in registry
              PID:5916
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5652 -prefsLen 32952 -prefMapHandle 5656 -prefMapSize 270279 -jsInitHandle 5660 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4540 -initialChannelId {85406d09-5a69-4c82-84a3-e993e79985cb} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              3⤵
              • Checks processor information in registry
              PID:3608
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5828 -prefsLen 32952 -prefMapHandle 5832 -prefMapSize 270279 -jsInitHandle 5836 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5844 -initialChannelId {2af0b722-7b1a-4da7-8f45-67fe1c3773c1} -parentPid 4856 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4856" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              3⤵
              • Checks processor information in registry
              PID:3196
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:1664
          • C:\Users\Admin\Desktop\cs2-external-esp.exe
            "C:\Users\Admin\Desktop\cs2-external-esp.exe"
            1⤵
              PID:1088
            • C:\Windows\system32\NOTEPAD.EXE
              "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\crashlog.txt
              1⤵
              • Opens file in notepad (likely ransom note)
              PID:1360
            • C:\Users\Admin\Desktop\cs2-external-esp.exe
              "C:\Users\Admin\Desktop\cs2-external-esp.exe"
              1⤵
                PID:4692

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    9512A4488B00CC053350DAC32D417B4A35C11513

                    • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\qur8qcyx.default-release\cache2\entries\9512A4488B00CC053350DAC32D417B4A35C11513
                    • Size 15KB
                    • SHA256 44dd8fbeb2945dea2c7edb6bee0c9966b90726dce7828c289b39957658ac463c
                    • 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\qur8qcyx.default-release\datareporting\glean\db\data.safe.tmp
                    • Size 7KB
                    • SHA256 7ece5b42c9a9994162396f992231a74c3b890f757ba546e8e12348bfbec1a001
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    data.safe.tmp

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\db\data.safe.tmp
                    • Size 7KB
                    • SHA256 7c99470c98fbe0f224d04aa3bcdd80bf525f963de73d8a94e8cd88a488063aad
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    data.safe.tmp

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\db\data.safe.tmp
                    • Size 5KB
                    • SHA256 c7946bbc37a5250bf8e0d7a4024154915e2c4517327e5b5f12dec26d58ce10a5
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    events

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\events\events
                    • Size 1KB
                    • SHA256 21758c95a1a5bbf6ef4f64c39d6cbb5b0f035e45e630a050573dcf808413d278
                    • MD5 SHA1 SHA512 TLSH

                    19c0b406-e5e7-4924-969b-f90f44cd7855

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\19c0b406-e5e7-4924-969b-f90f44cd7855
                    • Size 886B
                    • SHA256 e4d63380739a3cc92726d984a82f2d22568b8edf7e74fe930ebe1e1d20bb377a
                    • MD5 SHA1 SHA512 TLSH

                    2eccd572-35d2-45f7-a897-cfa12343b190

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\2eccd572-35d2-45f7-a897-cfa12343b190
                    • Size 235B
                    • SHA256 807f7071146dd11efd565dc6cab0a99dd4f9dc661c66e28b944ad1e86e018ed0
                    • MD5 SHA1 SHA512 TLSH

                    4935cefc-17c1-453d-8ed2-bdc79bdf40f9

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\4935cefc-17c1-453d-8ed2-bdc79bdf40f9
                    • Size 16KB
                    • SHA256 107054ba5a23808f80e69f72f72c0513c64ffc695b1e4db1b94a67d46c4b06ba
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    8043bdbb-aa48-4027-97d2-1c2d051a1710

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\8043bdbb-aa48-4027-97d2-1c2d051a1710
                    • Size 235B
                    • SHA256 729c7759838b251e7bc6cdc75a4c08956f004586d78594bbe64eaacc50b62701
                    • MD5 SHA1 SHA512 TLSH

                    91db0761-4633-4fc0-ac8c-862af3bff21d

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\91db0761-4633-4fc0-ac8c-862af3bff21d
                    • Size 883B
                    • SHA256 ebbe3d2983230d677d65b0f61638da80b8e11cb3c93c156bd8167550ed8a3598
                    • MD5 SHA1 SHA512 TLSH

                    cd2e2028-b753-4ec3-a282-cc94056374e0

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\datareporting\glean\pending_pings\cd2e2028-b753-4ec3-a282-cc94056374e0
                    • Size 2KB
                    • SHA256 88e55ebc45f7bf313765e95f112c7df4625b376b85f0cb162c40ea8cd3e8eebc
                    • MD5 SHA1 SHA512 TLSH

                    extensions.json

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\extensions.json
                    • Size 16KB
                    • SHA256 10bd7a534c1cb9c0cd1dee94490f5e771061ed458302518b98677d5e03a307b4
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    gmpopenh264.dll

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.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\qur8qcyx.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\qur8qcyx.default-release\gmp-widevinecdm\4.10.3050.0\manifest.json
                    • Size 1002B
                    • SHA256 2894996540fabbd346ed4ced8386ca77d6badf60372e307ee15c906c30340d0d
                    • MD5 SHA1 SHA512 TLSH

                    widevinecdm.dll

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\gmp-widevinecdm\4.10.3050.0\widevinecdm.dll
                    • Size 21.6MB
                    • SHA256 f1216e26ee8c27f938d7722427d29f190e569ed83d0ba16ea872cae684b97602
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    prefs-1.js

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\prefs-1.js
                    • Size 8KB
                    • SHA256 2aded143a1727df1dcf29f594a504da2c2493edc3ec307729b95ff4625191300
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    prefs-1.js

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\prefs-1.js
                    • Size 6KB
                    • SHA256 6cce9bbc1e396a9daea1d7a365e7c72459fe356e9e77c9ce26969fbf20e19873
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    prefs.js

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\prefs.js
                    • Size 6KB
                    • SHA256 c77385d697b099dcda4f44eba6a7135614d14852227b9fef9ef4efd502b2e3b7
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    recovery.baklz4

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\sessionstore-backups\recovery.baklz4
                    • Size 3KB
                    • SHA256 cd953c692c8ee5e848912250e57dea821af80fd4edc42e240d43ea0cff469689
                    • MD5 SHA1 SHA512 TLSH

                    recovery.baklz4

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\sessionstore-backups\recovery.baklz4
                    • Size 3KB
                    • SHA256 cdac5a5701c7a38720ab0ed9ccb062974db03fa68492f73070b289e6f516841f
                    • MD5 SHA1 SHA512 TLSH

                    recovery.baklz4

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\sessionstore-backups\recovery.baklz4
                    • Size 3KB
                    • SHA256 127395309c3ee9e1e01ed937694a6d282d3dfb6dc83670fc921c09c50e4b2f6a
                    • MD5 SHA1 SHA512 TLSH

                    3870112724rsegmnoittet-es.sqlite

                    • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qur8qcyx.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                    • Size 4.5MB
                    • SHA256 0efae545a048ccb136c9441d7d36fce4cfaf5294876056e3d3e3c4f8e505e904
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    crashlog.txt

                    • Path C:\Users\Admin\Desktop\crashlog.txt
                    • Size 32B
                    • SHA256 a6285359847870c414f8790dea88132ca3b482dc22ca5369d3ce2c7491825cd7
                    • MD5 SHA1 SHA512

                    release.ciGwNyla.zip.part

                    • Path C:\Users\Admin\Downloads\release.ciGwNyla.zip.part
                    • Size 4.3MB
                    • SHA256 9097a1a0d286c5ffafa76284ab453ffb23ce5b11c6b82f9d701a61d7a0898def
                    • MD5 SHA1 SHA512 SSDEEP TLSH