Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc0ae34eb75de86…

MALICIOUS

PDF

47.3 KB Created: 2021-06-04 05:08:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2ddcd7a9671f8c7fc01f21a2f424f72c SHA-1: c4265a4305114e4f74aa4e1647ce2f570c1ef846 SHA-256: fcc0ae34eb75de86a23a626c39124d07540d048e886a3f04390f319cd63d6ad5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Roblox, and includes a link to a website that appears to host such content. The ML classifier strongly flagged this PDF as malicious. The embedded URL and the document body text both point towards a social engineering tactic to redirect users to a potentially harmful site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/431946152/how-to-use-penis-hack-on-roblox-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id//repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/113-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/master-coin-free-link_GM406889139.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
stream_004_off0000529e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x529E 30216 bytes
SHA-256: bc8d9b2b64a6e7a6df5094663f3eae2c23a26d27299f2af26ceac0455e7be35f
font_01_sfnt_off0000950e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950E 18808 bytes
SHA-256: 24a3ae1b6604755a76591a3543c69c9b5125e65870e18e2e2795bcd1f8cf0a5d

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