PDF malware analysis — malicious · 72b219ebc0309aee

MALICIOUS

PDF

45.9 KB Created: 2021-06-03 09:00:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28

MD5: ed7fb885d2f806b87d42d9d792df2cd8 SHA-1: 520e1bd807505530665c1bfe79d5ea374c8542f2 SHA-256: 72b219ebc0309aeeabbc2714759619eed72d326c606addb7e44a4a693d1a312c

160 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9797

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.online/app/406889139/links-for-free-spins-for-coin-master-game-hack In PDF document text
- https://www.owlweb.co.uk/uploads/files/files/hacks-minecraft_GM479516143.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/robux-redeem_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-online-hack_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-robux-exe_GM431946152.pdfIn 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_004_off0000504c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x504C	24144 bytes
SHA-256: `1cc981c09ec1b2359c47bac774c595369761b8a71baa7e952d20797be51e3b3e`
`font_01_sfnt_off00008760.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8760	2896 bytes
SHA-256: `c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd`
`font_02_sfnt_off00009146.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9146	18056 bytes
SHA-256: `09cd9e464d76e3a3385f879857787e36dec082617c88c9984b9580abc08ffa43`

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