Analysis

  • user interaction
    yes
  • max time kernel
    105s
  • max time network
    108s
  • 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, 14:05

General

  • Target
    https://cdn.discordapp.com/attachments/1519346659904061500/1531301135627849899/pass_is_colossus.zip?ex=6a68b6d0&is=6a676550&hm=aa47ca36daceaea72edff85ce4b9347cad77a2f6ce5ae840c7f7dcdc26f94330&
  • Sample260727-rd5c9stgla

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 19 IoCs

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

  • Modifies registry class 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 63 IoCs
  • Suspicious use of SetWindowsHookEx 5 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:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "https://cdn.discordapp.com/attachments/1519346659904061500/1531301135627849899/pass_is_colossus.zip?ex=6a68b6d0&is=6a676550&hm=aa47ca36daceaea72edff85ce4b9347cad77a2f6ce5ae840c7f7dcdc26f94330&"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3384
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://cdn.discordapp.com/attachments/1519346659904061500/1531301135627849899/pass_is_colossus.zip?ex=6a68b6d0&is=6a676550&hm=aa47ca36daceaea72edff85ce4b9347cad77a2f6ce5ae840c7f7dcdc26f94330&
      2⤵
      • Drops desktop.ini file(s)
      • Checks processor information in registry
      • Modifies registry class
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4152
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1968 -prefsLen 27097 -prefMapHandle 1972 -prefMapSize 270279 -ipcHandle 2044 -initialChannelId {497a4db2-5acc-4d98-ac61-3dd8feacb57c} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:4404
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2416 -prefsLen 27133 -prefMapHandle 2420 -prefMapSize 270279 -ipcHandle 2428 -initialChannelId {fb9a341e-0407-4c9b-99fc-a4d1ec90ac89} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
            PID:2936
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3848 -prefsLen 25164 -prefMapHandle 3852 -prefMapSize 270279 -jsInitHandle 3856 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3864 -initialChannelId {d383fa01-d582-4ad5-8400-36262c8bc097} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            3⤵
            • Checks processor information in registry
            PID:4144
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4012 -prefsLen 27274 -prefMapHandle 4016 -prefMapSize 270279 -ipcHandle 4120 -initialChannelId {4e21ef3c-4e88-45d1-9ed7-f082ae946cfb} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            3⤵
              PID:6008
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3432 -prefsLen 34773 -prefMapHandle 3028 -prefMapSize 270279 -jsInitHandle 2900 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3052 -initialChannelId {aeddf448-3fa2-4e40-9a17-89d009df572b} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              3⤵
              • Checks processor information in registry
              PID:4496
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 3236 -prefsLen 35010 -prefMapHandle 1564 -prefMapSize 270279 -ipcHandle 1608 -initialChannelId {3ac6109d-6c43-4fdb-add2-551d192f55e4} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              3⤵
              • Checks processor information in registry
              PID:2956
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 1440 -prefsLen 32952 -prefMapHandle 5320 -prefMapSize 270279 -jsInitHandle 5324 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5332 -initialChannelId {e6c5afbc-6f20-4d2c-a732-cd16fbb53d0a} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              3⤵
              • Checks processor information in registry
              PID:4956
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5372 -prefsLen 32952 -prefMapHandle 5376 -prefMapSize 270279 -jsInitHandle 5380 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5388 -initialChannelId {5c3359c4-be5f-4c7e-a0ed-390d754139a5} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              3⤵
              • Checks processor information in registry
              PID:1140
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3160 -prefsLen 32952 -prefMapHandle 5396 -prefMapSize 270279 -jsInitHandle 5400 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5408 -initialChannelId {93387f38-d5ae-419a-89c1-ce35fe0ed0a7} -parentPid 4152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              3⤵
              • Checks processor information in registry
              PID:2604
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:5864
          • C:\Users\Admin\Downloads\pass_is_colossus\malware\MediaFetcher.exe
            "C:\Users\Admin\Downloads\pass_is_colossus\malware\MediaFetcher.exe"
            1⤵
            • Downloads MZ/PE file
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2960
            • C:\Users\Admin\AppData\Local\Temp\QuickSongDebugger.exe
              "C:\Users\Admin\AppData\Local\Temp\QuickSongDebugger.exe"
              2⤵
              • Executes dropped EXE
              PID:5812
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
            1⤵
              PID:1488
            • C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe
              "C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe"
              1⤵
                PID:3628
              • C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe
                "C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe"
                1⤵
                  PID:1292
                • C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe
                  "C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe"
                  1⤵
                    PID:4800
                  • C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe
                    "C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe"
                    1⤵
                      PID:1564
                    • C:\Windows\system32\taskmgr.exe
                      "C:\Windows\system32\taskmgr.exe" /7
                      1⤵
                      • Checks SCSI registry key(s)
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of FindShellTrayWindow
                      • Suspicious use of SendNotifyMessage
                      • Suspicious use of SetWindowsHookEx
                      PID:6596
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k GPSvcGroup
                      1⤵
                        PID:6924
                      • C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe
                        "C:\Users\Admin\Downloads\pass_is_colossus\malware\svcprov.exe"
                        1⤵
                          PID:6988

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              4E3D8FAAF804AAC616BC48BD4AFA8BE284516FCF

                              • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\zatx2150.default-release\cache2\entries\4E3D8FAAF804AAC616BC48BD4AFA8BE284516FCF
                              • Size 15KB
                              • SHA256 6c9eac2299ac8279dd6280b10cc11ab0a81c09d34bc53b363c04efbe93fba386
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              QuickSongDebugger.exe

                              • Path C:\Users\Admin\AppData\Local\Temp\QuickSongDebugger.exe
                              • Size 3.0MB
                              • SHA256 8ec9e2509842da27fa635988bbec5627a9bbf7670a54934e44100c301c767410
                              • 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\zatx2150.default-release\datareporting\glean\db\data.safe.tmp
                              • Size 3KB
                              • SHA256 0d2086565a1c4fa221750400b10aace814b839ac76bf47cf9051ab7fa3558fea
                              • MD5 SHA1 SHA512 TLSH

                              data.safe.tmp

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\db\data.safe.tmp
                              • Size 7KB
                              • SHA256 48469d140c43732a6e46e043897d08ef18dd5f074c29342b68552eea4afc0fbb
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              data.safe.tmp

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\db\data.safe.tmp
                              • Size 6KB
                              • SHA256 cc5e93019d44ad578b3690a17de8972d506d1e9d834e788aa2523ac162edb5ad
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              events

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\events\events
                              • Size 1KB
                              • SHA256 a5d531e4d5da7b64ffd672d68475a1c60a8486f387ca2bbd8b57a4e7242e0b6a
                              • MD5 SHA1 SHA512 TLSH

                              19d688fc-753f-4772-8375-25b908f683ac

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\pending_pings\19d688fc-753f-4772-8375-25b908f683ac
                              • Size 883B
                              • SHA256 ac5ef9349126ae983f1afccb421c554f1ba4154bbc8c5412ceb2d150f2aa2978
                              • MD5 SHA1 SHA512 TLSH

                              45a2afb0-7a31-4846-aa7d-8e02cf46f782

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\pending_pings\45a2afb0-7a31-4846-aa7d-8e02cf46f782
                              • Size 235B
                              • SHA256 7359e241f491c78275dfc2bc5fbc22085e3922599db2a95b890338b607dfac48
                              • MD5 SHA1 SHA512 TLSH

                              6cbe9694-3031-47b8-861d-e6ab2e3e6375

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\pending_pings\6cbe9694-3031-47b8-861d-e6ab2e3e6375
                              • Size 235B
                              • SHA256 9ce28535f2f90c3f460b789ae9b5cce7cec2831be41f9478705d482e9b575673
                              • MD5 SHA1 SHA512 TLSH

                              6ebce498-ea80-480c-bd37-21b9fa292177

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\pending_pings\6ebce498-ea80-480c-bd37-21b9fa292177
                              • Size 2KB
                              • SHA256 7faa9611e66c86ea49dcff3f08a3cd3d83a44487a6a8b7b29befbc81419714f8
                              • MD5 SHA1 SHA512 TLSH

                              b904ab58-646b-456e-8783-dcabf1a387a1

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\pending_pings\b904ab58-646b-456e-8783-dcabf1a387a1
                              • Size 886B
                              • SHA256 fc6ffa0b66ddfff254fc22df3ed14a1b8ca2200dceb130961be3d7041401d8c9
                              • MD5 SHA1 SHA512 TLSH

                              f20b4ff4-fc32-476d-bf80-fb60714edfeb

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\datareporting\glean\pending_pings\f20b4ff4-fc32-476d-bf80-fb60714edfeb
                              • Size 16KB
                              • SHA256 ab3d6dc9f16dbe5e21eaaebdf0d8f69502587f49b2b4107e13b2a1875bf6d222
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              extensions.json

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\extensions.json
                              • Size 16KB
                              • SHA256 f624a5fd48b41f8f795c61d7499502c7b69ce06546dec37f83de2109a96e8a94
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              gmpopenh264.dll

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.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\zatx2150.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\zatx2150.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\zatx2150.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\zatx2150.default-release\prefs-1.js
                              • Size 7KB
                              • SHA256 6bbad003f9c717d45d60ebaf16778a6a38d8b741a288fdf7e7ce2037c379ad33
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              prefs-1.js

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\prefs-1.js
                              • Size 6KB
                              • SHA256 fab21d8a75d693a20cb04e9af2a5b3ca5224f684f971a2e4ce5f444c4f1a0f44
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              prefs.js

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\prefs.js
                              • Size 6KB
                              • SHA256 defc8c27cc9bf63782bb207b0aee3d6f67fc2c0a3a2a2d64ba6cc72797ba8ebd
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              recovery.baklz4

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\sessionstore-backups\recovery.baklz4
                              • Size 1KB
                              • SHA256 1a3d5b8ddceba3a79b049b70924a77dff80a282795c9b79395750043cf957391
                              • MD5 SHA1 SHA512 TLSH

                              recovery.jsonlz4

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\sessionstore-backups\recovery.jsonlz4
                              • Size 1KB
                              • SHA256 23b4b87ba31ec8c89191f7af2518cf4e71d7f7c3e7d1a21414de0b3d314c2666
                              • MD5 SHA1 SHA512 TLSH

                              3870112724rsegmnoittet-es.sqlite

                              • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\zatx2150.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                              • Size 7.1MB
                              • SHA256 103af1654f9a60b7788a0eb3c8c3150fe5c911ec8d0683c9f0927a66ead8397d
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              pass_is_colossus.QPxC9bvD.zip.part

                              • Path C:\Users\Admin\Downloads\pass_is_colossus.QPxC9bvD.zip.part
                              • Size 2.0MB
                              • SHA256 24fd92b88d4c1cc9a44dc4781d804b0c0f04e44d62da505d375ca4ba024ed46a
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              memory/5812-701-0x00000152732C0000-0x00000152733DC000-memory.dmp

                              memory/6596-704-0x000001981DF30000-0x000001981DF31000-memory.dmp

                              memory/6596-714-0x000001981DF30000-0x000001981DF31000-memory.dmp

                              memory/6596-713-0x000001981DF30000-0x000001981DF31000-memory.dmp

                              memory/6596-712-0x000001981DF30000-0x000001981DF31000-memory.dmp

                              memory/6596-711-0x000001981DF30000-0x000001981DF31000-memory.dmp

                              memory/6596-710-0x000001981DF30000-0x000001981DF31000-memory.dmp

                              memory/6596-715-0x000001981DF30000-0x000001981DF31000-memory.dmp

                              memory/6596-706-0x000001981DF30000-0x000001981DF31000-memory.dmp