Malicious PDF — malware analysis report

Static analysis result for SHA-256 28de5148dde759d5…

MALICIOUS

PDF

3.9 KB Created: 2021-07-04 16:02:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 5b73a91fccae0f170a4ae7894ba28c53 SHA-1: a8013a99ac1002110b919971793defd779f9f544 SHA-256: 28de5148dde759d5cc5381de9bc795e6f6dd423b58483a18a9cd870d1c12ecaf
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that are identified as malicious redirectors, specifically luring users with promises of game hacks and free currency. The primary malicious URL is http://netcdn.tw/app/406889139/free-coin-master-spin-app-game-hack. While no scripts were extracted, the document's structure and embedded URLs strongly suggest a social engineering tactic to redirect users to potentially harmful content, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9590

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/free-coin-master-spin-app-game-hack In PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/cheats-for-dungeon-quest-roblox_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-do-you-get-roebucks-for-free_GM431946152.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/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/all-of-the-free-wings-on-roblox_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/free-avtar-roblox_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac//repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/roblox-money-hack-exe_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elib.upiyptk.ac.id/opac/repository/coin-master-hack-ios-no-human-verification_GM4068In PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.