PDF malware analysis — malicious · 1c2946ff9dcdc880

MALICIOUS

PDF

43.7 KB Created: 2021-05-14 07:52:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: e8e4ef22173ebbcd50af8dc68bec6942 SHA-1: 1244b9314760b48b0c2bd180fc493f3948df2bf1 SHA-256: 1c2946ff9dcdc8809d216d65a3d4492dee71acc4970882cb95514b962c8eba35

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector. The document body and heuristics indicate a lure for 'free Robux' or 'game hacks', designed to trick users into clicking the malicious link. The primary link, 'https://netcdn.xyz/app/431946152/free-robux-websites-that-work-game-hack', is identified as a redirector, likely leading to a further malicious download or phishing page. No scripts were extracted, but the embedded URLs and the nature of the lure strongly suggest a phishing or malware distribution attempt.

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/free-robux-websites-that-work-game-hack In PDF document text
- https://amenergy.vn/public/upload/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-haktuts_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-roebucks-com_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/ios-coin-master-hack_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-robux-generator-no-verification-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_off00004bea.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4BEA	25468 bytes
SHA-256: `9982fa9f28eb835288f76c14b93714817663c468a92012b7ce68e306319a054d`
`font_01_sfnt_off00008669.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8669	19000 bytes
SHA-256: `7385cf8e30761df55e83d9792ae8d47179260988159899b0069d718a962ca50a`

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