Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4d81f11a6a8f4e6…

MALICIOUS

PDF

13.6 KB Created: 2021-07-03 15:25:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6182a9bd98bca203973e294ce9328803 SHA-1: dcc6e4059a3e0567b68748f3d73f930a7b1b7eb6 SHA-256: f4d81f11a6a8f4e68470d47d62b14b5088c3346c31cbda0c0dbef825259f7463
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, that lure users with promises of game hacks and currency generators. The primary link directs to 'http://netcdn.tw/app/406889139/coin-master-daily-free-cards-game-hack', which is flagged as a malicious redirector. This suggests the document's purpose is to drive traffic to potentially harmful websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9861

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/coin-master-daily-free-cards-game-hack In PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-hack-roblox-money_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/microsoft-roblox_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/hack-robux-trong-roblox_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-100k-robux-for-free_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/roblox-ultimate-driving-cheat_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-free-robux-2-15-2021_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/hack-coin-master-apk-32-download_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/sten-gun-bad-business-roblox-hack_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-20212021202120212021202120212021202120212021202120219-robux_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/pubg-mobile-uc-qatar_GM1330123889.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-hack-your-password-on-roblox_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/free-roblox-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-free-roblox-gift-cards-no-human-verification_GM431946152.pdfIn PDF document text

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