Malicious PDF — malware analysis report

Static analysis result for SHA-256 affe4985374705c0…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 23:12:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 73e01567a0c258166af28143e3f0297f SHA-1: a84ddf0574cfecf40344a56d73314d3f5734c3ac SHA-256: affe4985374705c076df14eb1ea48eb9b02ec588ffcf5cc6f0325021ef39de0d
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.tw/app/835599320/tiktok-free-views-website-game-hack PDF link annotation
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-for-apps_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-roblox-places-in-robox-studio2021_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-roam-roblox-best_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-roblox-hack-com-free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/como-hacer-un-hack-en-roblox_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/rc7-roblox-hack_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/dragon-ball-z-hack-roblox_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/cd-hack-roblox_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/hack-voler-sur-roblox_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-free-robux-hack-no-survey-no-download_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/best-fe-scripts-hack-roblox_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/april-1st-hack-roblox_GM431946152.pdfIn PDF document text
    • http://e-pustaka.stkipadzkia.ac.id/repository/cheats-for-city-arcatect-roblox_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_off0000310f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x310F 21776 bytes
SHA-256: c125a3a8974e97246d315f0fa608a09b5d1a43049fb46d5f47496329c6f17582
font_01_sfnt_off000060b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 18624 bytes
SHA-256: 46187b7453ad9912c2ef8e4cb37de1123225f8f4162b5c766a57f91377c67294