Malicious PDF — malware analysis report

Static analysis result for SHA-256 732e30f5a11fe0b4…

MALICIOUS

PDF

42.5 KB Created: 2021-05-20 01:23:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: eb224f5e9d1baa2c458eb24cedb3c5be SHA-1: 6ab693d37c162accbeb61f4ad0dc8d0b5f5d5284 SHA-256: 732e30f5a11fe0b4d15aa407e5fdc838a1b061407caa044b00da0c6a185f5a6d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a high number of external links, many of which are SEO-spam related to game cheats and virtual currency, suggesting a phishing or malware distribution attempt. The presence of a 'download' button lure further supports this. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 https://netcdn.xyz/app/1330123889/pubg-70-uc-game-hack
    • https://www.cinemapalace.ro/trailer/files/daily-coin-master-free-spin-apk_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/hack-to-protect-village-on-coin-master_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-gift-cards_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/roblox-avatar-maker-free_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-daily-free-spins_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/free-spin-coin-master-2021-link_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/free-spin-link_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-in-2021_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-2021_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/what-is-coin-master_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/minecraft-free-install_GM479516143.pdf
    • https://www.cinemapalace.ro/trailer/files/links-for-free-spins-for-coin-master_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/unlimited-robux_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/play-roblox-free-online_GM431946152.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdf
    • https://www.cinemapalace.ro/trailer/files/coin-master-free-spins-and-coins-daily_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000044eb.bin
d92a4fe875eac94c5c86d4bd448b16f9bbb8e3822f5c2b4665ce86bb7d2f926f
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44EB 27188 bytes
font_01_sfnt_off0000845c.bin
846dbf183307d8f6e64f9fe21baf3014a6636cea9664c4cc2f62249f657563a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x845C 18128 bytes