Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d134df8459c17f1…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 02:56:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4bd552a1fff03e0f53a884fa263392a4 SHA-1: a9adb09e5105a03c59adb27412de4e01294ede06 SHA-256: 9d134df8459c17f15f34f2f18d3e4a0e0d22bc48820b2e6ff27827df4b588558
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/master-coin-hack-game-game-hack PDF link annotation
    • http://library.yamasi.ac.id//repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-2021-app-download_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-no-download-or-email_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-jailbreak-money-cheat_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-genearator-2021-no-suryve_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/whats-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-login_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-isle-hacking_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-a-free-pet-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-but_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_off00002f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F10 22628 bytes
SHA-256: d9fe7a2ee1b76578fada8458817b3e7f8dabe51fcdf4a764633a4cd5f7b77685
font_01_sfnt_off000061b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B6 18264 bytes
SHA-256: 4a5fae70639e3f7ad74a8b5463b1206e0a2e0224746e08acf5f0c1dacc4d336e

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