Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e076ad79cf4ae2…

MALICIOUS

PDF

32.9 KB Created: 2021-07-05 23:04:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: cfe9143fd9579e420ac3a839f7b23bbc SHA-1: 91f35ffacf8b3f276976edafb781d34081a6319d SHA-256: b6e076ad79cf4ae2e5c981042be41e2eb50d0ccd09433df34e01d6a53ff95a52
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a game hack lure to entice users into clicking a malicious link. The primary link, http://netcdn.tw/app/406889139/how-to-get-more-free-coins-on-coin-master-game-hack, is designed to redirect users to potentially harmful content. The document's structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-get-more-free-coins-on-coin-master-game-hack PDF link annotation
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/real-roblox-lumber-tycoon-2-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/optifine-pe_GM479516143.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/roblox-admin-commands-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/javascript-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/hack-prison-life-roblox-noviember2021_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/dailyrobux_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-keep-roblox-from-slowing-down-when-hacking_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/roblox-hack-tool-2021-download_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/hacks-for-rubux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/hack-como-tener-robux-gratis-en-menos-de-10-minutos_GM431946152.pdfIn PDF document text
    • https://www.pswpallets.com/uploaded_files/userfiles/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C46 22500 bytes
SHA-256: c80d5b77b7b271846b21fda9683da7001cace0292798a03fb11624fdc9237739
font_01_sfnt_off00005e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E69 18164 bytes
SHA-256: 87539b2ce36dbba66f075720f9556e36c071cb06377775487ffba75d6ed8d31d

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