PDF malware analysis — malicious · 1e6544f9c0c616d2

MALICIOUS

PDF

43.3 KB Created: 2021-05-12 03:33:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 530952cae044ac54214555d50dc36672 SHA-1: 4ec930c1df77198c89e4905d7918e7bd2e56ccb5 SHA-256: 1e6544f9c0c616d2a4ed8c4538947ed0cf1b94fd854208e5e0a7be0470db3a1d

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically targeting users interested in game hacks and free currency for games like Robux and Coin Master. The heuristic firings strongly indicate a malicious redirector designed to lure users to potentially harmful sites. Although no scripts were explicitly extracted, the nature of the embedded URLs and the lure suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/431946152/orewards-com-free-robux-game-hack In PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/roblox-script-hack_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-download-hack_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/free-robux-obby_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-hack-account_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/play-games-for-robux_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
- https://www.gpn-revalidation.co.uk/uploads/files/files/coin-master-hacks-free-spins_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_off00004bf4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4BF4	24804 bytes
SHA-256: `3cc61da4eb507a267d28da9fc154e6b881e2cbb2f49e7058ced97dcca286bd85`
`font_01_sfnt_off0000852b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x852B	18840 bytes
SHA-256: `db65450964d7be290e65cdc2a92251ec8b560453bbe28e14c4f3d4713211f4b7`

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