Malicious PDF — malware analysis report

Static analysis result for SHA-256 462d93c16dd2e4c3…

MALICIOUS

PDF

33.2 KB Created: 2021-07-05 01:11:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e074df025f05cae189cb3b9dcca65465 SHA-1: 6f6e8b0156fabdc77ab53afc6249883c06854eae SHA-256: 462d93c16dd2e4c3afc89392942edd2aec221ec819f419771c8dc406cd823a2f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a 'GAME_HACK_REDIRECT_LURE', indicating it directs users to a link promising game hacks. The embedded URL 'http://netcdn.tw/app/406889139/spin-link-game-hack' is the primary IOC. While no scripts were explicitly extracted, the nature of the lure suggests it's designed to trick users into visiting a potentially malicious site, aligning with a phishing or social engineering attack pattern.

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.tw/app/406889139/spin-link-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-by-watching-a-video_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-roblox-to-get-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-walk-through-walls-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-you-get-free-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/pastebin-roblox-account-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-robux-secret-hacks_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-bgs-cheats_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-items-in-roblox-february-2021-23rd_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/good-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/black-adidas-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-pastebin-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-points-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-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_off00002f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F00 22348 bytes
SHA-256: ab10d2745cdce9894b76f0d0fca29307492081c7b7b842d80addad2be6476dc7
font_01_sfnt_off00006051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6051 17936 bytes
SHA-256: 291a6753fc2367f8404d431bd18a2520f3a8298b5d66733df321c0bb6f83edb8

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