Malicious PDF — malware analysis report

Static analysis result for SHA-256 599ac880f061a24a…

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 14:50:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dab3ec6b7df1fee7fd2ddc7d7dfab03c SHA-1: 426586451666aca795ec1c331a7112502a1e2827 SHA-256: 599ac880f061a24abfd9a4eefbe611a95f5a63a5f64715e6435f64e37bd9e666
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The primary malicious URL identified is http://netcdn.tw/app/406889139/coin-master-hack-link-game-hack. The document body and heuristics confirm the intent to redirect users to potentially harmful content.

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/406889139/coin-master-hack-link-game-hack In PDF document text
    • http://ebook.itn.ac.id/repository/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/microsoft-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/cheez-it-cursor-roblox-download-for-free_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/gameclub-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-coin-master-spins-2021-link_GM406889139.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_off00003056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3056 22544 bytes
SHA-256: 6b1587a5d8d74a6ca975b4e2e434c424d4513ae29c834b44f3376279570019e6
font_01_sfnt_off00006277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6277 18004 bytes
SHA-256: 2f3a5855c5bac228d8d27cc7f61b57eebad79d58a924e470a0477843dff273c7

Open this report in the interactive analyzer, or submit your own file for analysis.