Malicious PDF — malware analysis report

Static analysis result for SHA-256 5432940c4ed45879…

MALICIOUS

PDF

35.3 KB Created: 2021-06-18 02:19:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fdec29338b8b0cc7c36e9fddf46a79ef SHA-1: a3baf7c8043f941435a8cc7d3d167191bb0a1216 SHA-256: 5432940c4ed45879127ca9f398fb5aba93ae60cc25099867218d665d01956814
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a document body that explicitly lures the user with promises of free Robux and game hacks, indicating a phishing or scam attempt. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms that at least one of the linked URLs directs to known malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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 http://netcdn.co/app/431946152/how-to-get-free-robux-with-cheat-engine-6.7-game-hack In PDF document text
    • http://amcoeur.org/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/exploit-20211-roblox-cheat-honeypot-users_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/free-tiktok-like_GM835599320.pdfIn PDF document text
    • http://amcoeur.org/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://amcoeur.org/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://amcoeur.org/images/how-to-make-your-own-roblox-dll-hack-client_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://amcoeur.org/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://amcoeur.org/images/free-robux-website-games_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/roblox-my-hero-release-boku-no-free-code-2021_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/roblox-gun-script-hack-r15_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://amcoeur.org/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://amcoeur.org/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://amcoeur.org/images/unpatched-cheat-engine-roblox-2021-february_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://amcoeur.org/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/free-pin-to-redeem-roblox_GM431946152.pdfIn PDF document text
    • http://amcoeur.org/images/earn-free-robux-on-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_off00003157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3157 22420 bytes
SHA-256: 31d2aaefd7ff291cc9cdf52056ceec191e458376b02144a53c93a9e2ba995114
font_01_sfnt_off0000634e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634E 19572 bytes
SHA-256: 8ff8862c61adf59ed82f065b34bc83cb15f7b2690c372d66a10096d15a81a470