Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fd5cd8f9a4767f…

MALICIOUS

PDF

49.0 KB Created: 2021-06-03 08:12:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d683c5296eb9f08200b1f40c092e2f5d SHA-1: 540aeb2c020bafe43624ca88ecb48185758aec07 SHA-256: f2fd5cd8f9a4767ffeb5cf648e3bb122659db64228e08b9355e8b1d429290784
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering game hacks and free currency, identified as malicious redirectors. The document body and embedded URLs strongly suggest a lure to download potentially malicious content or engage in phishing. While no scripts were explicitly extracted, the nature of the links and the 'game hack' lure are indicative of common malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/aimbot-download-roblox-game-hack In PDF document text
    • http://librarystkippgribl.com/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/roblox-executor-free_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-free-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000540a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x540A 26020 bytes
SHA-256: 586ee59c283f7bdc962796b0cb9fc66b9f31802b4c214cf3a05854828df8e333
font_01_sfnt_off000090d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90D6 2812 bytes
SHA-256: 869414959d7b492e0f799b560e1731e3ab498bd286c28e9f0d2ec33d9b6cf53d
font_02_sfnt_off00009a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A74 19000 bytes
SHA-256: 7d611a1d50564430ff0519ba238feadb200c8b25cb84a0d6ab1661790e5ed700

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