Malicious PDF — malware analysis report

Static analysis result for SHA-256 88489df427c79ad0…

MALICIOUS

PDF

34.8 KB Created: 2021-06-19 23:04:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 80511a81d82e7da99996790e909253af SHA-1: 88eb93b4bbf995c61866c480218cbdd52ae9b2a7 SHA-256: 88489df427c79ad0cb1d00e9af16f2b0bb44ba2cc7b0c8240f6c68438241bda8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and text that lure users with promises of game hacks and free currency for popular games like Roblox and Coin Master. The primary link directs to a URL associated with a 'free generator' or 'game hack', indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious sites for credential harvesting or malware delivery.

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/431946152/how-to-know-if-your-hacked-on-roblox-game-hack PDF link annotation
    • http://library.imz.or.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-bleach-primera-hack_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/hacking-roblox-zombie_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-dinosaur-simulator-dna-hack_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/static-moonactive_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-codes-august-2021_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/mad-city-hack-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_off00002e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4C 23000 bytes
SHA-256: f4ac1a2c2d33db4cce092bb17b64f7a3f2b97f3610c739a3df6302c4e115121d
font_01_sfnt_off000061f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F7 19296 bytes
SHA-256: bc4cb253639bb72829bef7e5018ca262558549a51a7c3a6a91776811ce57b8e4

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