Malicious PDF — malware analysis report

Static analysis result for SHA-256 d929d828dfa3efaf…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 17:30:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 37940ab4f63d96d059a97961a46c7e40 SHA-1: 4fe071c91f31eabd8daa3a93cbe1bab1e039201b SHA-256: d929d828dfa3efafe2ab72c3c75d516fb2867da90f5bf1d1e0091c704d37c2f5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on them by promising free game hacks or currency. The primary link, http://netcdn.tw/app/479516143/how-to-get-minecraft-pocket-edition-for-free-game-hack, redirects to known malicious infrastructure. While no scripts were extracted, the document's structure and embedded URLs strongly indicate a phishing or scam attempt, likely leading to malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-get-minecraft-pocket-edition-for-free-game-hack In PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/denis-cheating-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/free-roblox-valentines-generator_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/how-to-make-a-shirt-in-roblox-free-2021_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/hacks-tool-roblox_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/how-to-hack-into-an-account-roblox_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/free-livr-emerald-giveaways-roblox-direct_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/how-to-generate-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/oprewards-robux-free_GM431946152.pdfIn PDF document text
    • http://www.mathershydraulics.com.au/static/userfiles/files/free-robux-kid-friendly-no-human-verification_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.

FilenameKindSourceSize
font_00_sfnt_off00003474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3474 22344 bytes
SHA-256: 3b6e3be747a3b4d1fad8dd6fc8a47a1351985678333d8e19ed489be7f367b38b
font_01_sfnt_off00006597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6597 18660 bytes
SHA-256: b13a25137ff5bf184941611dadd5274b7697b7880b48ae01eb7c808e4237078c

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