Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/08/2026, 18:00

General

  • Target
    memreduct.zip
  • Size 356KB
  • Sample260822-wlcqfaap7x
  • SHA256 8eb5f7849d6737937aa0d40e60ae35075a51850dc761a13f6154bdc493750ad5
  • 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.

  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 9 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:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\memreduct.zip
    1⤵
      PID:1456
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:5076
      • 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
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3152
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1980 -prefsLen 27097 -prefMapHandle 1984 -prefMapSize 270279 -ipcHandle 2060 -initialChannelId {804c7eb6-22e1-4b28-8dd2-9417f113d901} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
          3⤵
            PID:3584
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2412 -prefsLen 27133 -prefMapHandle 2416 -prefMapSize 270279 -ipcHandle 2424 -initialChannelId {d0195bdf-54fc-4f33-9ccf-0009f3957d86} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
            3⤵
              PID:4372
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3784 -prefsLen 27274 -prefMapHandle 3788 -prefMapSize 270279 -jsInitHandle 3792 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3800 -initialChannelId {45e49180-e494-4d0b-937c-ca20a31b0094} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
              3⤵
              • Checks processor information in registry
              PID:4076
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3948 -prefsLen 27274 -prefMapHandle 3952 -prefMapSize 270279 -ipcHandle 3968 -initialChannelId {b609b256-7213-4d42-b601-2ec807ccbbfc} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
              3⤵
                PID:816
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3000 -prefsLen 34773 -prefMapHandle 4468 -prefMapSize 270279 -jsInitHandle 4472 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4480 -initialChannelId {76b4332a-09c7-463e-8087-8191c92afa76} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                3⤵
                • Checks processor information in registry
                PID:2704
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 4960 -prefsLen 34929 -prefMapHandle 4964 -prefMapSize 270279 -ipcHandle 4876 -initialChannelId {492983f3-a2cd-4c40-9058-92e3a429f8e3} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                3⤵
                • Checks processor information in registry
                PID:4664
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3096 -prefsLen 32900 -prefMapHandle 3224 -prefMapSize 270279 -jsInitHandle 3120 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5184 -initialChannelId {d6831df1-72fd-4af7-aba2-17915b09eceb} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                3⤵
                • Checks processor information in registry
                PID:3064
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5384 -prefsLen 32952 -prefMapHandle 5388 -prefMapSize 270279 -jsInitHandle 5392 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5400 -initialChannelId {93d456ce-aeed-446f-b71b-ab7375007090} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                3⤵
                • Checks processor information in registry
                PID:3820
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5416 -prefsLen 32952 -prefMapHandle 5420 -prefMapSize 270279 -jsInitHandle 5424 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5432 -initialChannelId {3a04fc6b-8c64-4c3d-8e30-b46317b47cdb} -parentPid 3152 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3152" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                3⤵
                • Checks processor information in registry
                PID:1256

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                4DDF99D0461C50BB47DC9EC040A8AD4C9355497C

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\qu37ckd4.default-release\cache2\entries\4DDF99D0461C50BB47DC9EC040A8AD4C9355497C
                • Size 3.8MB
                • SHA256 2aa78556d65fdc3736f8f08755bed4ea62043841b9eed8a1936ad78cece25a9b
                • MD5 SHA1 SHA512 SSDEEP TLSH

                86DDBDE5E1EAFC4C588EE71FB531985C95CCC542

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\qu37ckd4.default-release\cache2\entries\86DDBDE5E1EAFC4C588EE71FB531985C95CCC542
                • Size 16KB
                • SHA256 f64bef7e09f9ee8792ce4534a0d0d5476dbf67f7923cb51b950880d887fecb11
                • MD5 SHA1 SHA512 SSDEEP TLSH

                tmpaddon

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

                tmpaddon

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

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\db\data.safe.tmp
                • Size 40KB
                • SHA256 4a8d5e44f8acb6403703f57a293574a782fbc9133d8435437a734413abc17498
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\db\data.safe.tmp
                • Size 6KB
                • SHA256 c5fcaf0a49e85a340e135c43d590dfc5ffe4d480fcd80e29f4a287e93758a66d
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\db\data.safe.tmp
                • Size 40KB
                • SHA256 46c399746118c1815f8264971990f8b2d89364aba7e30a50192c9a57302cd859
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\db\data.safe.tmp
                • Size 40KB
                • SHA256 172915aefa75ec7638a084130e034bb9cb829a743eaabc8e3f4ac216641f3a73
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\db\data.safe.tmp
                • Size 40KB
                • SHA256 349c4216621a9314e83d470aadfb1e14b0f7b5de66c0fb36385a4d1cb26f21a0
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\db\data.safe.tmp
                • Size 7KB
                • SHA256 03918ab7054e11e6558a6f91cd5c5ed91da6d658b1d7a7a93c40e2867867df1c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\events\events
                • Size 1KB
                • SHA256 d622a6de1b3fe766c2c43436a46584f7b61b68ea66568f3b620a58fab5ed15ad
                • MD5 SHA1 SHA512 TLSH

                1bb21efa-7e21-4fb0-ba11-64fec450b15e

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\pending_pings\1bb21efa-7e21-4fb0-ba11-64fec450b15e
                • Size 883B
                • SHA256 aa8aced820b9e93f367de94b8b7f6bcda3806f5c7a88d66128b6ffa4d6eef90b
                • MD5 SHA1 SHA512 TLSH

                96e6f3ef-b8f6-47af-9e94-dfdd820c0f2a

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\pending_pings\96e6f3ef-b8f6-47af-9e94-dfdd820c0f2a
                • Size 886B
                • SHA256 25eaf1ae7fee8032796bf9fdcfa1b3a3ade47024d1133908da754c724d54132c
                • MD5 SHA1 SHA512 TLSH

                a7a49ea6-52ef-49ea-95ef-31504b3bcaf3

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\pending_pings\a7a49ea6-52ef-49ea-95ef-31504b3bcaf3
                • Size 235B
                • SHA256 ccedfa6ff0e137e166610938a52c73f61ad5a8a2719c4218d585658d88b41712
                • MD5 SHA1 SHA512 TLSH

                dbc63bb8-7507-45f3-a736-5efc77a606ba

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\pending_pings\dbc63bb8-7507-45f3-a736-5efc77a606ba
                • Size 235B
                • SHA256 fe3656587b1b5fdef15355b3787f7b47a6468daad6eaec1d516d7f4888afe7c6
                • MD5 SHA1 SHA512 TLSH

                e934a7f9-5933-4459-97ee-67efe5c45166

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\pending_pings\e934a7f9-5933-4459-97ee-67efe5c45166
                • Size 16KB
                • SHA256 f423b8ce1f04f7e9bede5ee068d5835717dc63f7c722a7902dad09f1ee2e7315
                • MD5 SHA1 SHA512 SSDEEP TLSH

                fc17f84a-6a62-40c7-aad8-d97d0a3bc4ad

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\datareporting\glean\pending_pings\fc17f84a-6a62-40c7-aad8-d97d0a3bc4ad
                • Size 2KB
                • SHA256 3473350668d287b876c2dcaae8f391504da4935164f74f4fd6f11dc8e46e5d34
                • MD5 SHA1 SHA512 TLSH

                extensions.json

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\extensions.json
                • Size 16KB
                • SHA256 1a3494df230afeb712b2807490e5aaac26f0c9afa5e9ecc12330aa0126315f6f
                • MD5 SHA1 SHA512 SSDEEP TLSH

                gmpopenh264.dll

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.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\qu37ckd4.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\qu37ckd4.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\qu37ckd4.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\qu37ckd4.default-release\prefs-1.js
                • Size 11KB
                • SHA256 03ce5e71c3614f21ec02c5b739dc78ce864806f4eef107b60ecdb613670d17f7
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs-1.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\prefs-1.js
                • Size 7KB
                • SHA256 acef5de9dbc0575fbb2b9e83944fe4456f0b6df9c511c7f5b7f7450dba938266
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\prefs.js
                • Size 6KB
                • SHA256 4103554dbe33f7fdc29d2110856841ae1304a31c5d12df65606c73547fba3923
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\prefs.js
                • Size 7KB
                • SHA256 e21a7414a3e6407007f1ddad3426fe4bf18f82eaa0e5c3e43e244e3917cd460f
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\prefs.js
                • Size 6KB
                • SHA256 96f9674fdfc22de7d5d04900207916294c9fd9fa9f3afc53673b2d16e7c7e8ca
                • MD5 SHA1 SHA512 SSDEEP TLSH

                recovery.jsonlz4

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\sessionstore-backups\recovery.jsonlz4
                • Size 1KB
                • SHA256 5b824a0b40052bc793a0f3f95d8ca68a6a8e3190e20f196ddab494b1d6e92dc6
                • MD5 SHA1 SHA512 TLSH

                3870112724rsegmnoittet-es.sqlite

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                • Size 4.2MB
                • SHA256 7ce99ffb2d1232f1bbe97e705b3b9c6be6fde3436c15075074b68f881bce8707
                • MD5 SHA1 SHA512 SSDEEP TLSH

                3870112724rsegmnoittet-es.sqlite

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\qu37ckd4.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                • Size 4.2MB
                • SHA256 afb21912eba2f897f9151abb98f475f8391691411a11e18ab0ff5ca89c8f870f
                • MD5 SHA1 SHA512 SSDEEP TLSH