Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f25952ff2ad2b9a…

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 20:29:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0e8bd2a6c3af8b610525bec843659f1d SHA-1: a0484ea2046886756c33250b7ddfce4ca4c242de SHA-256: 8f25952ff2ad2b9ab6911f9a440e53457bc60020114ca5779af705853df60b7f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple embedded URLs that are designed to lure users with promises of game hacks and free currency. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. The primary URL, http://netcdn.co/app/431946152/can-you-use-cheat-engine-on-roblox-to-get-robux-game-hack, is likely the initial landing page for the exploit. No scripts were extracted, but the document structure and embedded links suggest a phishing or malware distribution attempt.

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/can-you-use-cheat-engine-on-roblox-to-get-robux-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/alpha-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-hack-dll_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-steves-one-piece-hack-steve-shift_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/blox-piece-script-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-html-code-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-summer-grl-free-roblox-skins_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-flying-practice-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-obc-card-codes_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-para-shinobi-life-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/earn-free-robux-by-watching-videos-and-playing-games_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_off00002f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F91 22744 bytes
SHA-256: d458e830546c321bf6a803855254d024833e64e6e64e21d3ef0f2aa3af54b3d5
font_01_sfnt_off00006217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6217 19180 bytes
SHA-256: 2ea19ac4f793e651e6166b996bfd5c07cd9213b08752408f507384791648aaee

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