Analysis

  • max time kernel
    303s
  • max time network
    344s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/08/2026, 02:50

General

  • Target
    Postal 2/gamedata/System/changes.htm
  • Size 4KB
  • Sample260815-dbzs4sysbx
  • SHA256 e3e1f2e4f0df27848096290a186ce527e7e6bc55a5b4774deec90cf9dca7b2e4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 19 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 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 "C:\Users\Admin\AppData\Local\Temp\Postal 2\gamedata\System\changes.htm"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5208
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "C:\Users\Admin\AppData\Local\Temp\Postal 2\gamedata\System\changes.htm"
      2⤵
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:812
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1964 -prefsLen 27098 -prefMapHandle 1968 -prefMapSize 270279 -ipcHandle 2040 -initialChannelId {1e0fca1e-2b2b-45b4-90a3-5ff244aaf364} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:4600
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2436 -prefsLen 27134 -prefMapHandle 2440 -prefMapSize 270279 -ipcHandle 2444 -initialChannelId {77d0691a-a261-4d34-9223-a6b5c60f04a1} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
            PID:108
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3784 -prefsLen 27323 -prefMapHandle 3788 -prefMapSize 270279 -jsInitHandle 3792 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3800 -initialChannelId {4a4963cc-d2ca-4706-b015-f39502bc4b96} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
            3⤵
            • Checks processor information in registry
            PID:6060
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4000 -prefsLen 27323 -prefMapHandle 4004 -prefMapSize 270279 -ipcHandle 4084 -initialChannelId {6108bab8-bd62-4b32-99d0-0f373511918b} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
            3⤵
              PID:5624
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2876 -prefsLen 34822 -prefMapHandle 2700 -prefMapSize 270279 -jsInitHandle 2968 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4444 -initialChannelId {8fde0eab-3643-4b83-94ac-2b97d0114aaf} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
              3⤵
              • Checks processor information in registry
              PID:1516
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5052 -prefsLen 35010 -prefMapHandle 5056 -prefMapSize 270279 -ipcHandle 5064 -initialChannelId {2f11f71e-8c97-42af-b35b-d7fefc16d3fc} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
              3⤵
              • Checks processor information in registry
              PID:3404
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5436 -prefsLen 32952 -prefMapHandle 3300 -prefMapSize 270279 -jsInitHandle 3308 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5452 -initialChannelId {455ace7c-aa49-46d1-a2e2-f49446f1bf1a} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
              3⤵
              • Checks processor information in registry
              PID:3192
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5632 -prefsLen 32952 -prefMapHandle 5636 -prefMapSize 270279 -jsInitHandle 5640 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3300 -initialChannelId {8a9cbc53-e41b-440e-ba0e-9bfb0372b8ba} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
              3⤵
              • Checks processor information in registry
              PID:4136
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5792 -prefsLen 32952 -prefMapHandle 5796 -prefMapSize 270279 -jsInitHandle 5800 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5808 -initialChannelId {a0f993fa-1f87-4f1b-85dd-9ccc95642651} -parentPid 812 -crashReporter "\\.\pipe\gecko-crash-server-pipe.812" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
              3⤵
              • Checks processor information in registry
              PID:2420
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k GPSvcGroup
          1⤵
            PID:2348

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                86DDBDE5E1EAFC4C588EE71FB531985C95CCC542

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\x9aidq83.default-release\cache2\entries\86DDBDE5E1EAFC4C588EE71FB531985C95CCC542
                • Size 16KB
                • SHA256 1342cdfe1f54bb295092c2034c9d6fe8ef523ef1e8d6df562acfac90a396bc4d
                • MD5 SHA1 SHA512 SSDEEP TLSH

                BCE77F27AF7DB788AE98BB53D806DDBEAF80E5E1

                • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\x9aidq83.default-release\cache2\entries\BCE77F27AF7DB788AE98BB53D806DDBEAF80E5E1
                • Size 23KB
                • SHA256 e60472c33cd50f9d69463228891236c0a8f58c2b410d94626c681581c9feb600
                • MD5 SHA1 SHA512 SSDEEP TLSH

                tmpaddon

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

                LJ5IR4S0SIT2U3N0BZAB.temp

                • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\LJ5IR4S0SIT2U3N0BZAB.temp
                • Size 7KB
                • SHA256 7b471277d3de13d4b2b5603bccade1b49e654c623b9d182494d3f1ac1ed1b598
                • 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 ebf709e0abf075295206792533cdd8820eedc2664580ea93f0790b8f24e885f3
                • 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 1fc33ed1e03f403062380a27000794525e787995b64cdcaa52ccd21621aa4988
                • 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 509d4677eea5540ea154f7880b15d8be98b9193163f4706c72c6307a3abc5576
                • 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 4761ea862fb72a1d9e964c7bb52e08eeca203e02cceeddac9c35799897b67aea
                • MD5 SHA1 SHA512 TLSH

                0ec8a0ff-dd3f-44f3-9749-8cde1a9bbf4e

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\0ec8a0ff-dd3f-44f3-9749-8cde1a9bbf4e
                • Size 235B
                • SHA256 0c7fad9f1e2a1ef697fcfa3d49552a851ec193706e2e2a057288bf19d91114fb
                • MD5 SHA1 SHA512 TLSH

                8e2e1d79-44f3-4a96-b626-6ddd895322c1

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\8e2e1d79-44f3-4a96-b626-6ddd895322c1
                • Size 15KB
                • SHA256 39f6be187782073f5eec02a5a96518fc15bccd43bcd588653c247f2121bd27bc
                • MD5 SHA1 SHA512 SSDEEP TLSH

                aba342de-f87e-4558-a379-d46fb218ca10

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\aba342de-f87e-4558-a379-d46fb218ca10
                • Size 886B
                • SHA256 5e95ddd0ed5e1555896dd2e216ec8545c04fc389877fc18c7765f2bf202b4735
                • MD5 SHA1 SHA512 TLSH

                bbc5d9ed-98ce-4b77-b850-f6a9a77db4d9

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\bbc5d9ed-98ce-4b77-b850-f6a9a77db4d9
                • Size 2KB
                • SHA256 6e0a53e00d71c54382cb153be2112a35b4ddcc13aa48c2a6120949e800210b75
                • MD5 SHA1 SHA512 TLSH

                e1f51c7c-e9ed-4d17-ad2b-4bd55e43df58

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\e1f51c7c-e9ed-4d17-ad2b-4bd55e43df58
                • Size 235B
                • SHA256 b97834fc589d6e0b114e4b6a9401637eea98f8556ecd5dab9d1a2b7e5a807e5d
                • MD5 SHA1 SHA512 TLSH

                e8f6c2f4-d5e7-4fef-8226-0f0e931a7e88

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\datareporting\glean\pending_pings\e8f6c2f4-d5e7-4fef-8226-0f0e931a7e88
                • Size 883B
                • SHA256 d0f9a8f6adf1e6e7f5f959ede0b4c1ac6be8cfe8680d32dc6f2c9a8f251a8571
                • MD5 SHA1 SHA512 TLSH

                extensions.json

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\extensions.json
                • Size 16KB
                • SHA256 85065813d4d5093996b44f6cd7be73b6e3eee3102261d16b5bdbae488082f054
                • MD5 SHA1 SHA512 SSDEEP TLSH

                gmpopenh264.dll

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.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\x9aidq83.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\x9aidq83.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\x9aidq83.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\x9aidq83.default-release\prefs-1.js
                • Size 6KB
                • SHA256 b12790b2b5573b11bd287da9e71f7a34fd54943d0fee5c968cec60409776035f
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs-1.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\prefs-1.js
                • Size 7KB
                • SHA256 ce1f3a843361312edad87e2c66dad4dbd514a9e11fa7794183810d21ad99b1e0
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs-1.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\prefs-1.js
                • Size 6KB
                • SHA256 ad39b9ba9b82e42224ce3f9aad94303dc4b63e775f66afda657ced0e4a8ebac4
                • MD5 SHA1 SHA512 SSDEEP TLSH

                recovery.baklz4

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9aidq83.default-release\sessionstore-backups\recovery.baklz4
                • Size 1KB
                • SHA256 fee009f3a699fa9fbba81680015d2855de7224f8b3328ac8015a8ac263241c84
                • MD5 SHA1 SHA512 TLSH