Malicious PDF — malware analysis report

Static analysis result for SHA-256 944f98122140c360…

MALICIOUS

PDF

35.3 KB Created: 2021-06-30 02:41:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8898821c218fc5d4d9d66e7f2f298967 SHA-1: 790de54f7d331154570630fbdd97947bfc28a8f8 SHA-256: 944f98122140c3609007eac00a80c4079ba5794a390c4b494bb0b4af1718da50
100 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'Roblox Hack' and directs the user to a URL that is flagged as a malicious redirector. The document body and embedded URLs suggest a social engineering attempt to trick users into downloading a potentially malicious file. No scripts were extracted from this sample.

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/roblox-hack-v3.1.1-download-game-hack In PDF document text
    • http://www.psychom.com/storage/editor/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/all-of-the-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/easy-ways-to-earn-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/roblox-paypal-hack_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/how-to-get-free-models-in-roblox-studios_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/roblox-in-game-hack_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-robux-hurry_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/free-robux-obby-uncopylocked_GM431946152.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.psychom.com/storage/editor/files/how-to-get-free-robux-instantly_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_off0000300a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300A 22760 bytes
SHA-256: 909d3e195ad953190455159ec9178eaa2b0a46ceb229972cade7fe01b661a550
font_01_sfnt_off000062f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F7 19640 bytes
SHA-256: 252c813e3234c08c147c7dd436e7e7de7d76c7d4fc0bf2df887026f4f5bfb3ae

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