Malicious PDF — malware analysis report

Static analysis result for SHA-256 46d6d75a3de20b45…

MALICIOUS

PDF

34.2 KB Created: 2021-06-26 15:05:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f289120c7590dfd2a5d60946607a3fb4 SHA-1: 66c62a2f1577d1a9db6c9b7aae6281ea35b827bc SHA-256: 46d6d75a3de20b45f468152d424df19c1082904606ff9ac60e190b16390d0b46
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/free-robux-groups-2021-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/addrbx-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-beautiful-hair-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-printable-coloring-pages-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-roblox-robux-giftcards_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-free-shirts-and-pants-girl_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/robux-earner_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-pass-hacker_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-free-robux-script_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/vouchers-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9E 21780 bytes
SHA-256: f7212eca4c6a6a7899dc19af869c3a33a315e8c61bf4287db930d0c72042660f
font_01_sfnt_off00005f93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F93 19296 bytes
SHA-256: b274ca6d2e3d14a2eaf0a8d8f251c670de139d2f59e1f69b73bb52ee948191dd

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