Malicious PDF — malware analysis report

Static analysis result for SHA-256 60264afdd26b693a…

MALICIOUS

PDF

33.2 KB Created: 2021-06-21 02:15:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1bfd40ce95ac3a5ef20aaae18926c9f6 SHA-1: abbc6e673dafc1b88cb1f9d09498728b42eb6fd9 SHA-256: 60264afdd26b693afe5dc358b54c8d733a5a8052da8a1da15e5d3c13dfddd7a8
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are SEO-optimized and promise free in-game items or cheats for popular games. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The document's content and the presence of many external links point towards a social engineering attack designed to trick users into visiting potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-com-game-hack
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/minecraft-java-edition-free-download_GM479516143.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-co_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/apps-to-get-free-robux_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-roblox-generator-2021_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-game_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/daily-coin-master-free-spin-link_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-generator-for-roblox-2021_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/minecraft-free-computer-game_GM479516143.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/legit-free-spins-coin-master_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/blox-rewards_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/legit-coin-master-hack_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-hack-someone-on-roblox_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/best-free-minecraft-server-hosting-reddit_GM479516143.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-minecraft-for-free_GM479516143.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-roblox-accounts-2021_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/comment-hack-sur-roblox-admin_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ca3.bin
117568b121a3c0a36104de8124388bf3459d26b4696d798e7643ee5b8b612e5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA3 21596 bytes
font_01_sfnt_off00005c46.bin
2a82a6b4e88d45175d2fe2eaf287537d274cffbbed35dd56f8b6e767c09dfc54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C46 19244 bytes

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