PDF malware analysis — malicious · 3dd53f047e39c1e4

MALICIOUS

PDF

47.3 KB Created: 2021-05-12 04:29:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26

MD5: dc05f1af181ad2a603686184defff133 SHA-1: 9d9b9341520109dfa8393e19a78264a3021d4c3e SHA-256: 3dd53f047e39c1e4636b67db336c59e93a4fb7efcf3aff1c47ee5d490f72bce8

160 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.8948

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/479516143/minecraft-for-chromebook-free-game-hack In PDF document text
- http://www.primeinformatica.it/images/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
- http://www.primeinformatica.it/images/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
- http://www.primeinformatica.it/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
- http://www.primeinformatica.it/images/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
- http://www.primeinformatica.it/images/free-fire-coin-master_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-tool-hack_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
- http://www.primeinformatica.it/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/roblox-hack-app_GM431946152.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/real-robux-codes_GM431946152.pdfIn PDF document text
- http://www.primeinformatica.it/images/free-robux-earn_GM431946152.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://www.primeinformatica.it/images/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
- https://code.giftcards.comIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004d49.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D49	27236 bytes
SHA-256: `3c372179a0b5f2ac62e5e5f687c23047a7e9e6bae2fc3cbcad8123e93dfa024b`
`font_01_sfnt_off00008bd4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BD4	2972 bytes
SHA-256: `f0af5e995e8b2b47a871cdcd7278589527cf242ee7c53d92b97e53a750f2edb7`
`font_02_sfnt_off00009612.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9612	18464 bytes
SHA-256: `2a1fd25b60091da4e89f293bc06fa32417487358dc39e20cf321c71e22d0bfdc`

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