Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ebdf7ceb56abfce…

MALICIOUS

PDF

34.0 KB Created: 2021-06-27 05:43:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 205bcaa1cd51d895718534d773aed149 SHA-1: ab21b97de631607492a9cfcbc588095f96dd8c6f SHA-256: 9ebdf7ceb56abfcefceb6f50cc44b5e10329e0840e8fdf860b310c4777442d99
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The embedded URL and document body text reinforce this, suggesting the document's purpose is to trick users into visiting a malicious site. No scripts were extracted, but the presence of embedded URLs and the nature of the lure indicate a phishing attempt.

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.co/app/479516143/play-minecraft-online-free-game-hack In PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/pokemon-go-3-free-raid-passes_GM1094591345.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/long-pastel-hair-roblox-free-to-purchase_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/como-hacker-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/get-robux-free-no-disabling-ad-blocker_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/4jcom-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-tracker_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spin-download_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_off00002f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F85 22680 bytes
SHA-256: 6727ab0df88147b97310ea6114c3747e72fdf80ec92dc212b4e0a26cd1f7e0a1
font_01_sfnt_off00006246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6246 18264 bytes
SHA-256: 6af20249b3fc91c6ba778d93b5b7f70c4b9d84eb0b0988d9fc165060c8c986e2

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