Malicious PDF — malware analysis report

Static analysis result for SHA-256 050dfe762ea11e13…

MALICIOUS

PDF

35.1 KB Created: 2021-06-20 19:34:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8c29cc6a625c0266790d4ba8001b4841 SHA-1: 5af8c9b596245c0a5b2996b34b66e8a8ad75d43e SHA-256: 050dfe762ea11e13ff2d37b28809e5e8b141e4a31ced8527ab61d1efbbefc3f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, masquerading as free game hacks or generators. The primary lure URL is http://netcdn.co/app/479516143/free-texture-packs-for-minecraft-pe-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or social engineering attack aimed at driving traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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
  • 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/479516143/free-texture-packs-for-minecraft-pe-game-hack In PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/pubg-mobile-uc-xyz_GM1330123889.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-codes-2021_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_off000032e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E0 22660 bytes
SHA-256: 2c35c38ac844ea0680c20f8233731fe26681fde42ffd89ac1b36b19a55130467
font_01_sfnt_off00006596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6596 18672 bytes
SHA-256: a1472ccc9438feb4b04b5df4c97d4bbbb8359e6dab7b706f8c8bcd4a13191ded