Malicious PDF — malware analysis report

Static analysis result for SHA-256 f54da7090d98cec7…

MALICIOUS

PDF

38.4 KB Created: 2021-05-10 13:36:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 5dd1b1d47dc3ff9171d8cf44b2172a38 SHA-1: eab827fe2c2de3e9ee80fec0dec2b99f01d702ce SHA-256: f54da7090d98cec74d87a0b38452969d6bbf9f8c25056ece49e43dbdef1a4d9e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, disguised as a lure for game hacks and free currency. The document body and heuristics indicate a clear intent to direct users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or redirection attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9423

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/best-site-for-free-coin-master-free-spin-link-game-hack In PDF document text
    • http://rafaelmontesinos.com/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/robux-offers_GM431946152.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/coin-master-mod-version-free-download-34-4_GM406889139.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
stream_003_off00003b3a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3B3A 25152 bytes
SHA-256: 90011e28dd45ae2f53ba9fadf22b2c8adbda4d1f55dc0860ef752fa56dc77913
font_01_sfnt_off00007493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7493 18272 bytes
SHA-256: ca1d5c85fdffad6772495688e388105cc3e45c07940918e965146369a91d2d3c

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