Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    15/07/2026, 12:12

General

  • Target
    SteamDaddy.exe
  • Size 16.8MB
  • Sample260715-pdcxxaft21
  • SHA256 286e67730f1101f81920f9830d85654086e6e433beb2934e152799403f73d1dd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 22 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 6 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:\Users\Admin\AppData\Local\Temp\SteamDaddy.exe
    "C:\Users\Admin\AppData\Local\Temp\SteamDaddy.exe"
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:1540
  • C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2712
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3320
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1980 -prefsLen 27100 -prefMapHandle 1984 -prefMapSize 270279 -ipcHandle 2072 -initialChannelId {60e9ed8d-987b-4822-aa90-4a309f055f7c} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
        3⤵
          PID:3260
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2436 -prefsLen 27136 -prefMapHandle 2440 -prefMapSize 270279 -ipcHandle 2448 -initialChannelId {b5341aae-4ce6-453a-a79e-17b423bf3efc} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
          3⤵
          • Checks processor information in registry
          PID:4556
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3836 -prefsLen 27277 -prefMapHandle 3840 -prefMapSize 270279 -jsInitHandle 3844 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3852 -initialChannelId {f6377227-51fa-4333-8618-e3ce054e4d01} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
          3⤵
          • Checks processor information in registry
          PID:728
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3996 -prefsLen 27277 -prefMapHandle 4000 -prefMapSize 270279 -ipcHandle 4084 -initialChannelId {68fb67a4-35cd-438f-b5c2-3b83c367c7de} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
          3⤵
            PID:2240
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 2768 -prefsLen 34776 -prefMapHandle 3136 -prefMapSize 270279 -jsInitHandle 3180 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3016 -initialChannelId {1ce1436a-53c5-4ccb-b4e2-5ce907e3849a} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
            3⤵
            • Checks processor information in registry
            PID:116
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 2988 -prefsLen 35013 -prefMapHandle 1636 -prefMapSize 270279 -ipcHandle 2996 -initialChannelId {c2baaf60-6645-4dce-8ed4-74eb19730fbf} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
            3⤵
            • Checks processor information in registry
            PID:5452
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5104 -prefsLen 32900 -prefMapHandle 5108 -prefMapSize 270279 -jsInitHandle 5112 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5128 -initialChannelId {115b3d6c-8661-47b1-bc89-69eedd6c439d} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
            3⤵
            • Checks processor information in registry
            PID:5516
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5232 -prefsLen 32900 -prefMapHandle 5236 -prefMapSize 270279 -jsInitHandle 5240 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5248 -initialChannelId {571ee74a-ca38-4268-bb7d-c71fed4f4557} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
            3⤵
            • Checks processor information in registry
            PID:5524
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5592 -prefsLen 32952 -prefMapHandle 5596 -prefMapSize 270279 -jsInitHandle 5600 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5140 -initialChannelId {5ec9a9bf-7949-414d-9326-30668d90abb9} -parentPid 3320 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3320" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
            3⤵
            • Checks processor information in registry
            PID:5580

      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\nw1cs7ok.default-release\datareporting\glean\db\data.safe.tmp
            • Size 5KB
            • SHA256 e0d38935b41b39c1a9955e89252450d9b13e900380cbc8493291f302269037f3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\db\data.safe.tmp
            • Size 5KB
            • SHA256 608965039281994088604be15366401e2963c49dd704dc1412160dce8aca50a1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\db\data.safe.tmp
            • Size 7KB
            • SHA256 73dfcf49ef097bf65ce402fd60e483f71856b04aecb96686052779e116800983
            • MD5 SHA1 SHA512 SSDEEP TLSH

            59f1dac1-27ee-48f4-8873-47c5c1ca9ae9

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\pending_pings\59f1dac1-27ee-48f4-8873-47c5c1ca9ae9
            • Size 235B
            • SHA256 2b186aca2b8fc2e0a0dd23813e7f9ca683def8a7cff17334242e96022c2d6bd8
            • MD5 SHA1 SHA512 TLSH

            699b1092-e415-48ec-a7e3-3f64a31ffaf3

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\pending_pings\699b1092-e415-48ec-a7e3-3f64a31ffaf3
            • Size 883B
            • SHA256 edb95c1e7d5d7550ba033697982e4ffee1456b89efff190ac9c3033c4adf28b2
            • MD5 SHA1 SHA512 TLSH

            7aa64b27-55d0-4acd-aa76-ee85961c37ac

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\pending_pings\7aa64b27-55d0-4acd-aa76-ee85961c37ac
            • Size 235B
            • SHA256 7e8638ddb030dbe91a9199374e247be180e0375b9181c196f5c4fb5f0f0f6baa
            • MD5 SHA1 SHA512 TLSH

            91edd9ee-8cfc-4c9f-aa6d-08c0e676a33a

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\pending_pings\91edd9ee-8cfc-4c9f-aa6d-08c0e676a33a
            • Size 886B
            • SHA256 d255e28c68787323ed34485fb884da9923c03d99ebdb46eb69f72f79026b7b59
            • MD5 SHA1 SHA512 TLSH

            977e6948-78b3-4157-bc25-0f8bfa6588cd

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\pending_pings\977e6948-78b3-4157-bc25-0f8bfa6588cd
            • Size 2KB
            • SHA256 bfea6179c5fd7887183a189014f667ea5ba8550c38dd58dfdf9c80ad6bbd5944
            • MD5 SHA1 SHA512 TLSH

            b7a40662-513d-4551-87aa-6ed3834fa144

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\datareporting\glean\pending_pings\b7a40662-513d-4551-87aa-6ed3834fa144
            • Size 16KB
            • SHA256 b7297a4dec205e9db5caad765ce713d9c58ff86e7cd972692f67f0c8577816cb
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs-1.js

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\prefs-1.js
            • Size 6KB
            • SHA256 a6c485c2584425c9e432aba0fe59f45bf575ef8332db4bf1ea2151c7e95b41e3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs.js

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\prefs.js
            • Size 6KB
            • SHA256 153173b9c53386eb41d1eb9a59b24cdac85788ce4aa9226a5264e1bc70b495ba
            • MD5 SHA1 SHA512 SSDEEP TLSH

            sessionCheckpoints.json.tmp

            • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\nw1cs7ok.default-release\sessionCheckpoints.json.tmp
            • Size 288B
            • SHA256 2fca1f29b73dd5b4159fa1eb16e69276482f5224ba7d2219a547039129a51f0e
            • MD5 SHA1 SHA512 TLSH