Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f1631597d07990…

MALICIOUS

PDF

35.8 KB Created: 2021-06-20 07:58:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 22acd72d7c8a789dc4b806dca13bc2d3 SHA-1: f8a9f413522deb8428ed454b9221da464766d5c5 SHA-256: 30f1631597d07990ab2d629d0fdd546395e47d2971292b95540de48676eaf2d3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-cheat-engine-execute-lua-c-on-roblox-game-hack PDF link annotation
    • http://perpus.i2s-learning.com//repository/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-cheat-ore-tycoon-2_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-hackorg_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-hack-accounts-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-how-to-get-free-robux-september-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-intros_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_off0000340a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x340A 22768 bytes
SHA-256: ac975f4ef2515e883c6f1685480f11d595b1d1985e60d6f1766d1231d3371b80
font_01_sfnt_off00006727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6727 19016 bytes
SHA-256: 939d2add30468039e2d71d7ccaeb74f715ce681f7569ce213ea2f58dd596521a