Malicious PDF — malware analysis report

Static analysis result for SHA-256 183a7d3fc29994df…

MALICIOUS

PDF

17.8 KB Created: 2021-07-04 17:28:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 54a4b1c1dfc65213ac9ef465b4facd1c SHA-1: 3986c1755ba7c1e0e662d70599561e39d43f4f61 SHA-256: 183a7d3fc29994dfbf15965259964af32564b47b718f6c1ad63398ca0874ad86
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The primary link, http://netcdn.tw/app/431946152/roblox-hack-apk-game-hack, is identified as a malicious redirector. This suggests the document is part of a phishing or scam campaign designed to lure users to potentially harmful websites. No scripts were extracted, but the presence of embedded URLs and the lure content strongly indicate a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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.tw/app/431946152/roblox-hack-apk-game-hack In PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-to-get-remotes-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-hack-apk-no-survey_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/robux-come_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/hacker-flying-in-roblox-game_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text

Related samples 8

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