Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c9a25a9670b48c2…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 22:28:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a9167db089c2955bb3a78a52ff1e8465 SHA-1: a0658f33d7525653c8dc933c5d5b09db6737eb74 SHA-256: 8c9a25a9670b48c233173c265cb18bcbc455fec007ae982d3c7333a340356db8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document functions as a lure, directing users to external websites promising game hacks and free downloads. The embedded URLs, such as https://netcdn.online/app/479516143/minecraft-pc-download-free-full-version-game-hack, are likely intended to lead to malicious content or further compromise. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/479516143/minecraft-pc-download-free-full-version-game-hack PDF link annotation
    • http://perpustakaan.pn-tilamuta.go.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/robux-game-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-latest-version-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/roblox-ban_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_off000052a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52A3 25052 bytes
SHA-256: 5100ca37cecb8436b7e3ecfda7a5f694d9ad2423a0e3ebafb64c1d815511642c
font_01_sfnt_off00008a55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A55 18716 bytes
SHA-256: 489221dfcb925ba69d0ba840bced02970ab19491774c28c5754cc19987365276

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