Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a9cfcfe120f0535…

MALICIOUS

PDF

25.7 KB Created: 2021-06-18 17:37:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6d9984ad482b4a37232fc93960b51776 SHA-1: 6e695877ecb4a4a1020ba25c14f4a8170435d7c4 SHA-256: 9a9cfcfe120f05351f9bdaf1d0cdd735bbad8fc33785a9322df36f7b1706fdc7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links designed to lure users into clicking on them by promising game hacks or free currency. These links redirect to malicious infrastructure, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The primary URL identified is http://netcdn.co/app/431946152/cheats-roblox-high-school-game-hack, which appears to be the initial landing page for the scam. No scripts were extracted from this sample, but the document's structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 3

  • 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.
  • 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.co/app/431946152/cheats-roblox-high-school-game-hack In PDF document text
    • http://pustaka.pn-calang.go.id/repository/fps-hacks-roblox-aimbot-how-to-activate-ambot_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-maze-runner-cheats_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-make-a-shirt-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-card-pin-generator_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/dragons-life-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E58 22064 bytes
SHA-256: 1b33dd74f39cf9ce1347b7b1ab1a36bf1dfd2c36803450538883f5241a708594

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