Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1402a6a1538fde0…

MALICIOUS

PDF

15.0 KB Created: 2021-07-04 15:30:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 37ff33670d6bb8d638432af28fa47096 SHA-1: 41216cc55bca29609b58163cf96d46df66563cca SHA-256: b1402a6a1538fde047dfe5cedfedda9c87f961b0a028a75b6038d1d7be84ac90
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The primary URL, http://netcdn.tw/app/406889139/pig-master-free-coins-and-spins-game-hack, is a clear indicator of a phishing or scam attempt. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9937

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/406889139/pig-master-free-coins-and-spins-game-hack In PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/pubg-uc-easypaisa_GM1330123889.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-to-make-your-own-dominus-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-to-get-free-pubg-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-download-roblox-mac_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/robux-free-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/100-free-robux-daily_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text

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