Malicious PDF — malware analysis report

Static analysis result for SHA-256 535f0c3fdd300c9f…

MALICIOUS

PDF

34.5 KB Created: 2021-06-30 05:27:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 66502547f4782d96167bd5bb2846926f SHA-1: a97bc32d4e0da761e4ce11b4a6933a8012e8e1ff SHA-256: 535f0c3fdd300c9f7f2dfb0f97d89afd82fb44708f7d24b94be06bc2a92e1fe8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and lures related to game hacks and free currency generators, specifically mentioning Robux and Coin Master. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this, and the ML classifier strongly indicates maliciousness. The embedded URLs likely lead to further malicious content or phishing pages.

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-get-free-robux-on-tweakbox-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-on-roblox-on-pc_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hacks-for-roblox-2021-admin-hacks-dowload_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/tiktok-free-followers-and-likes-apk_GM835599320.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-para-roblox-comandos-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-codes-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-make-your-own-roblox-hack-injector_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robux-hacks-inspect-way_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-roblox-robux-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/cm-spins_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-no-human-verification-2021-or-survey_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/best-free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-do-i-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-hack-no-download-no-survey_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_off00003013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3013 22164 bytes
SHA-256: cc99128d8dc9d25cdb1348042a52c8b55ff9af60b6a4d002e83f343bbece007e
font_01_sfnt_off0000612a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612A 19316 bytes
SHA-256: 2a0d532b3f04c65cfddf0bd63ea78a280a5b04c2f21f1da41e9240d7e449e119

Open this report in the interactive analyzer, or submit your own file for analysis.