Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6e30cf5bcf3fa32…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 18:56:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7b19c0e031b50d76763dde83c9402f64 SHA-1: 170af92b0c9deaf7ae105635aaf425228432bea4 SHA-256: d6e30cf5bcf3fa32a102baab12d34dc74d10c2e962d7898c80dfef60d376d3dd
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/406889139/coin-master-real-free-spins-game-hack PDF link annotation
    • https://lib.bunghatta.ac.id/app/repository/free-shirts-to-make-for-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-game-snow-shoveling-simulator-cheats_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-2021-no-waiting_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/jailbreak-free-admin-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-admins-free_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-vip-server-boku-no-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-roblox-accounts-obc-lifetime_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-free-no-login_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-and-easy-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-system_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/cheat-engine-65-download-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-games-no-scam_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-ro-ghoul-free-vip-server_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/robloxcom-hack-download_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/hack-robux-gratis-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-bandana-on-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-form-free_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_off000031c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C6 22604 bytes
SHA-256: 37817c1ddc2b0a8a4181c06328ae126570e9413eb527d69bbffb6e0f8dd63bca
font_01_sfnt_off0000643b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643B 18248 bytes
SHA-256: 5f736567adc3cd86f8dc44114fe2bc9d04d21798e1bdf6dd2e87bffd69b6c752

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