PDF malware analysis — malicious · 4e347e0fe1a298a3

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 23:35:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19

MD5: 72bf40c4b90be3a4bbe248d20dd67fa5 SHA-1: 4c9c37e565547705fe9b15f2cd770d85f3636618 SHA-256: 4e347e0fe1a298a31e0f6bfe1de1d668dec7c74e5e5989f21292160f6aea96ba

160 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/roblox-promo-code-to-get-free-robux-game-hack In PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/hack-cheats-for-roblox_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/minecraft-wurst_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-gui-for-roblox_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/dowload-free-robux-hack-for-free_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-roblox-accounts-with-eto3k_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/roblox-free-online-game-demo_GM431946152.pdfIn PDF document text
- https://www.vizyonproduction.com/application/uploads/assets/files/free-links-to-coin-master_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003231.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3231	22256 bytes
SHA-256: `4f7e1214c0b04cca3e1a4fde02bce6f38403ea8c543e0f792b4e1ee8043d7769`
`font_01_sfnt_off000063e2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63E2	19480 bytes
SHA-256: `9c60ac484ed4d96c21d417994060880eaf1182fdd7210cd7b39094265f956726`

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