Malicious PDF — malware analysis report

Static analysis result for SHA-256 9000fa65efb37b91…

MALICIOUS

PDF

47.6 KB Created: 2021-05-14 03:03:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b4200e013a26a08ed3b3e2d4a66b08e5 SHA-1: e514bd08bf3226db1ba62428e5f350c8782594fe SHA-256: 9000fa65efb37b9186ac2648311b365f0e3e861a5e5a0fc835479e6dcd3d513a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting free Robux and game hacks. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this behavior. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/robux-match.com-free-robux-game-hack In PDF document text
    • http://www.friendshiptransport.net/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-links-2021_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
font_00_sfnt_off00004b89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B89 28028 bytes
SHA-256: 792b5ced254d6d1a5ffed61c5a2877f46948d90f7777760c8e42a1eaf5bbae20
font_01_sfnt_off00008bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBA 3000 bytes
SHA-256: 767d7ed16f214a3a3fb6d5312401ac30b53b9598cf7ad1194be7cc8da8fd4edc
font_02_sfnt_off00009600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9600 18904 bytes
SHA-256: 4a85ad6ffc73ad9b3f41fceca22de32e3ce7595015d69f53ae753139e52ac9f7

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