Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9efe4d8afcb878d…

MALICIOUS

PDF

32.1 KB Created: 2021-07-08 00:05:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 44b6273d893af0292596b74710813b82 SHA-1: f96735c2d04557d93507991d6387c62881d32603 SHA-256: e9efe4d8afcb878d7393a3d2808f540fbcff6c275aa0b01af620db5f9b0ba571
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 0.9824

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.tw/app/479516143/minecraft-for-free-apk-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-mod-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-help-to-remove-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/audioscribe-free-fall-ncs-full-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-into-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/boosted-gamer-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/cheat-aimbot-roblox-mdiafire_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-broken-bones-cheat_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/cheez-it-cursor-roblox-download-for-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-do-u-get-robux_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_off00002af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF4 21924 bytes
SHA-256: 4fe2024652af6abae53abba2e7ab66287adfae9ca90330877c45e11928a310ff
font_01_sfnt_off00005b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B05 18344 bytes
SHA-256: f2a3950443101758b9c1651e244d0fd19f1b2316c99a1f9962c0bef3e629104d