Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce83eec47a5bda7e…

MALICIOUS

PDF

41.2 KB Created: 2021-05-15 00:40:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: fcb4c69ac968a6c1d2bfc24853593891 SHA-1: 6aee558f3d492d74a2f9fa253784d3d4515a5763 SHA-256: ce83eec47a5bda7ea560aad59c7d46e96de508968eb60e96c73e0fedf0aeafca
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically advertising free Robux. The ML classifier also flagged this PDF as malicious with high confidence. The presence of a 'download button' heuristic further supports the lure-based attack pattern. Although no scripts were explicitly extracted, the PDF structure and malicious links indicate a likely attempt to redirect the user to a site that may host further malicious content or exploit kits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/funblox.xyz-free-robux-game-hack In PDF document text
    • http://www.visiblefilm.com/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/free-robux-live_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://www.visiblefilm.com/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • http://www.visiblefilm.com/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://www.visiblefilm.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.visiblefilm.com/images/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://www.visiblefilm.com/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://www.visiblefilm.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://www.visiblefilm.com/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.visiblefilm.com/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.visiblefilm.com/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://direct-link.netIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000479e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x479E 23976 bytes
SHA-256: 56c0c278519b46422a90002b9e6185330aba300a7ad333341d98841e581b1bf3
font_01_sfnt_off00007e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E36 18416 bytes
SHA-256: 094e3ad3acb05c69538296255af77c281e929786c4e47907665e7e86d1bfa11c

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