PDF malware analysis — malicious · 7fae512b636b0063

MALICIOUS

PDF

33.4 KB Created: 2021-07-19 04:48:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 89933f45fe6928b6f5eada33b37bda8d SHA-1: 7bb08f24a5025a5672b0c0766a89c9bc53766394 SHA-256: 7fae512b636b0063bb72e6739d906880d33538c7e92d31ea222d3ed817061648

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as a "free generator / game hack" lure. The embedded URL http://netcdn.tw/app/479516143/how-to-play-minecraft-for-free-on-pc-game-hack is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and link analysis strongly suggest a social engineering attack aimed at redirecting users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9942

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/how-to-play-minecraft-for-free-on-pc-game-hack In PDF document text
- https://icefuture.ru/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
- https://icefuture.ru/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
- https://icefuture.ru/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://icefuture.ru/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
- https://icefuture.ru/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://icefuture.ru/images/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
- https://icefuture.ru/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
- https://icefuture.ru/images/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
- https://icefuture.ru/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
- https://icefuture.ru/images/how-to-get-free-robux-for-kids_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_off00002e67.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E67	22664 bytes
SHA-256: `ae56d2ebf34ce86721bcb9b4ae42cdfbf93b09a320cc756dad88d1d6f59f7e5e`
`font_01_sfnt_off000060ce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60CE	18284 bytes
SHA-256: `805db6617afe2d237489c8bb7c2b5cc2832d34670fdae12a8b82fd0acde92e0c`

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