Malicious PDF — malware analysis report

Static analysis result for SHA-256 d63552488e4ae547…

MALICIOUS

PDF

42.8 KB Created: 2021-05-11 23:30:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 244fe21fa563275d93fbf1f88f3b3b0b SHA-1: bd0da76cba5923eb68ddd1632ff8670505081449 SHA-256: d63552488e4ae54755c6fb8099dd6ad125e58ad43a319fe39be63179afd10b6a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'free currency' to lure victims. The primary malicious URL identified is https://netcdn.xyz/app/431946152/boku-no-roblox-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow, likely leading to further malware downloads or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/boku-no-roblox-hack-game-hack In PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48AC 26772 bytes
SHA-256: c6ae076f97647ffbb1bec10a3ca14edeb0c36e14bf1c8aadb88175bbcf4d7300
font_01_sfnt_off000084d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D5 18320 bytes
SHA-256: cd83af5ba5492d0d90d9a213d6c06333e9cd9f39d2b07ffbf91c7f3a8ed3d34e

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