PDF malware analysis — malicious · cd72985a1a87ac6f

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 16:23:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19

MD5: a18aca378c6ebb11deef43c224c288ab SHA-1: dad71955ca05c02014fb46a37726093cd3027c44 SHA-256: cd72985a1a87ac6fbe6d3d8e52c32a5690b7f1ac4d1c3f83e43ec01b8e8eb23e

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/479516143/can-you-play-minecraft-for-free-game-hack In PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-promo-codes-august-2021_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/vip-roblox-free_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-just-click_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-roblox-combo-list_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-free_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/robux-20210-free_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/www-robux-redeem_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/how-to-hack-knives-in-assassin-roblox_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-dispenser_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/how-to-hack-roblox-using-xcode_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/tiktok-free-online_GM835599320.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/robux-com-roblox_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/girl-clothes-for-free-roblox_GM431946152.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_off00003207.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3207	22308 bytes
SHA-256: `b8e432d4788fc785ab3abe8e3ec3361e53d39b081ef219a8e0103c6ac69a90a8`
`font_01_sfnt_off00006307.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6307	18708 bytes
SHA-256: `f5208eddf1f6b5c18def2bcdaa7b9b4b699475180da5a60222e46653029b9c71`

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