Malicious PDF — malware analysis report

Static analysis result for SHA-256 c79b5600820f9147…

MALICIOUS

PDF

12.0 KB Created: 2021-06-18 14:36:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2e5dae1480ac7e64a5fb047faf3da076 SHA-1: e12512f803bd2e5daa6b07b57d574000d1d942d7 SHA-256: c79b5600820f914702a67e25fa5cc5c7403998ee9b7e25faa87b5eff413d688f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to malicious infrastructure, masquerading as game hacks and generators. The heuristic firings indicate that these links are known malicious redirectors, and the ML classifier strongly supports a malicious verdict. The document body and embedded URLs are consistent with a phishing or scam attempt to lure users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9743

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.co/app/431946152/free-roblox-promo-codes-2021-april-game-hack In PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/roblox-robux-hack-mod_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-money-hack_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/hacker-roblox-fr_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text

Related samples 8

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