Malicious PDF — malware analysis report

Static analysis result for SHA-256 809d0220f800e1fd…

MALICIOUS

PDF

35.0 KB Created: 2021-06-27 16:25:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d079932d9bfa08a9d0d48ae8aa5611f7 SHA-1: 50a7219909b1c0ea6d1cfe3f1296105267422f19 SHA-256: 809d0220f800e1fdda1f3ed8f576411b4a604f4976587b7e7ca02fa4e85a5f41
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external websites, many of which are SEO-optimized pages offering game cheats and in-game currency. The presence of a direct download URL and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful files. The document's structure and content strongly suggest a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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/unpatched-cheat-engine-roblox-2021-game-hack
    • https://www.cinemapalace.ro/trailer/files/free-links-to-coin-master_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/free-livr-emerald-giveaways-roblox-direct_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-on-roblox-2021-easy_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-free-spins-hack_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-official-website_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/www-roblox-robux_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-hack-free-spins_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/free-robux-quiz_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-hack-apk-ios_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/roblox-free-robux-generator_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/free-asault-rifle-t-shirt-roblox_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/free-coins-coin-master-blog_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-stuff-in-the-roblox-catalog_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/hack-coin-master-with-lucky-patcher_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/cheat-codes-roblox-music_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/roblox-cheat-engine-online_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/free-robux-group_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/https-webrobloxcom-games-2021202177-creeperawwman14-hack_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-free-spins-link-today-2021_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-vip-server-on-roblox-jailbreak_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f87.bin
3e10d05c47149c42fb16bba5e97c130722d929c4260bc4507ae4b7d9b497a70c
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F87 22532 bytes
font_01_sfnt_off00006200.bin
2efda2ab92f15029ab5137fc4e5fb09f0fabbe7514a1190f942b01027a67b23e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6200 19628 bytes