Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69dd33c0d1434eb…

MALICIOUS

PDF

36.5 KB Created: 2021-06-20 09:40:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c2d92ccdacbaed4ea1494101352d5e01 SHA-1: 809975e278035dab5e1d72e6af0c262279af681c SHA-256: b69dd33c0d1434ebdd7cd16d93a77d28657d987a50c00418320d9a83dd3a1ab7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a 'free generator / game hack' lure. The document body and embedded URLs reinforce this, pointing to sites offering game-related cheats. While no scripts were extracted, the presence of embedded URLs and the nature of the lure suggest the PDF is designed to redirect users to malicious content, likely a downloader or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/406889139/free-links-coin-master-game-hack PDF link annotation
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/pokemon-go-free-items_GM1094591345.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coinmaster-hack_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/codes-roblox-free-items_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/original-roblox_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jubileeparkacademyprospectus.co.uk/admin/ckfinder/userfiles/files/claimrbx-free-robux_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_off00003847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3847 23168 bytes
SHA-256: 09e61b46e86fbaff5ab265c1a01b261547404a18776ce4045ddaffd272a63152
font_01_sfnt_off00006ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA2 18168 bytes
SHA-256: 49ca197413d81a8c45b996179a8dc5f16a69a640506e408289fd8874ef63419e