Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ac0c72647506993…

MALICIOUS

PDF

39.0 KB Created: 2021-05-23 20:37:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b02a25301b241827acc83efe47ee1f18 SHA-1: 1cc15c54b9dcb459fb7e9752482d36d4fb8dc74e SHA-256: 8ac0c72647506993b6909ffe467d7b1741729e65c8d50024c0beeb5aa0ed5bcf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a lure for free TikTok followers and a prominent "CLICK HERE TO ACCESS TIKTOK GENERATOR" call to action, which is a common social-engineering tactic. The document embeds multiple URLs pointing to sites offering hacks or cheats, and one URL is directly associated with a "browser extension / update installation lure" heuristic. The ML classifier also flagged this PDF as malicious, indicating a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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 https://netcdn.xyz/app/835599320/free-tiktok-followers-game-hack PDF link annotation
    • http://riccardodurso.it/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://riccardodurso.it/images/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://riccardodurso.it/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://riccardodurso.it/images/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://riccardodurso.it/images/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002ea1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EA1 29776 bytes
SHA-256: 101315292a7e9c67593f8ab6f0e1e9be5656f246113a20f9199b16f4429c036f
font_01_sfnt_off00006e16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E16 3012 bytes
SHA-256: ea730caf108ebad3375e06643ac09f96113c7f497f8970db1c262632c2ba43d7
font_02_sfnt_off0000788f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788F 17692 bytes
SHA-256: ba2215a0f2290c6faad19fe6968ba231152e54b1cb241ca137cf69db350684c8

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