Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b52226f17f3a042…

MALICIOUS

PDF

45.2 KB Created: 2021-06-07 11:37:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f5868629ea4b324e66a98cba391f17f7 SHA-1: 758c4ef9f46be53715e7bdb2a29e054c99022d24 SHA-256: 7b52226f17f3a042225cff68ee8791df0469a6650910ee382280e6357127d994
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, specifically advertising game hacks and free items for popular games like Roblox and Pokemon Go. The primary lure appears to be a "free generator" or "hack" for Roblox accounts, directing users to the URL https://netcdn.tw/app/431946152/how-to-get-the-right-roblox-account-pin-hack-game-hack. The document's structure and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-the-right-roblox-account-pin-hack-game-hack In PDF document text
    • http://yogaschooldecypres.be/images/pokemon-go-free-metagross_GM1094591345.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/synapse-x-best-free-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-free-spins-and-coins-without-human-verification_GM406889139.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_off0000520c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x520C 25480 bytes
SHA-256: f266799f767a19319d8fa205e966066f22caece57a00f9a00d366406be5ac004
font_01_sfnt_off00008b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B03 19316 bytes
SHA-256: 930bfde7da51cc4ef8655f533f53315bbe4ce3790a74bc512944327c12563013

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