PDF malware analysis — malicious · f34945ba5fcbf638

MALICIOUS

PDF

32.0 KB Created: 2021-07-19 16:25:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: d518225da7bc2c3125f1c0bd9cfaedb3 SHA-1: 48ac015df1f0529bfc9f11da11dca2480efcd0f5 SHA-256: f34945ba5fcbf63806260d76cdfca6291a6bc4e5afc799e9f06a8a79e348ec6d

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure URL is http://netcdn.tw/app/479516143/play-minecraft-for-free-game-hack, which is flagged as a malicious redirector. The document body also contains a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the deceptive nature of the content.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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/play-minecraft-for-free-game-hack In PDF document text
- https://clubpure.org/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
- https://clubpure.org/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://clubpure.org/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://clubpure.org/images/robux-free-c_GM431946152.pdfIn PDF document text
- https://clubpure.org/images/roblox-hack-download_GM431946152.pdfIn PDF document text
- https://clubpure.org/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- https://clubpure.org/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
- https://clubpure.org/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://clubpure.org/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
- https://clubpure.org/images/how-to-get-free-robux-without-verifying-2021_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_off00002a8e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A8E	22152 bytes
SHA-256: `11b0507c604ddb658008f98e7e7e303d112331fbdb558409aed26f23636c0f0c`
`font_01_sfnt_off00005bbc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BBC	18116 bytes
SHA-256: `58506b39f0592aa293a22e76cdd5d8324130a94bf097dc81d26ff216ea8060f4`

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