Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcadb411a1f7745d…

MALICIOUS

PDF

34.1 KB Created: 2021-06-29 17:49:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6209f3e53680e31e878343663f35bc12 SHA-1: 09b766c73a851777ef9cdd0819aed4fc99bdd2d6 SHA-256: fcadb411a1f7745d83a769079d256e132ce1f69f8bd2da5804be006a1b88f639
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 hosted on a domain that appears to be part of a link farm designed to attract users searching for game cheats and hacks. The document body explicitly mentions 'Roblox Free Robux Hack Mobile', indicating a lure for potentially malicious downloads or scams. The presence of external URIs and a link farm heuristic strongly suggests this PDF is part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/roblox-free-robux-hack-mobile-game-hack
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/hack-username-and-password-roblox_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-robux-games-2021_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/roblox-hack-generator_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-free-spins-link_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/roblox-cheat-engine-code-for-robux_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/claimrbx-free-robux_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-robux-generator-no-verification_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-spins-coin-master-no-verification_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-do-you-get-free-robux-in-2021_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-shirts-that-cost-robux-youtube_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-pc-robux_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/synapse-x-hack-roblox-downlod_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/claim-free-spins-coin-master_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-to-hack-filtering-ebabled-game-roblox_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-roblox-gift-card-codes-list-2021-updated-weekly_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/daily-spin_GM406889139.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/roblox-free-suit_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/how-to-get-free-robux-without-surveys_GM431946152.pdf
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee8.bin
61e7353c6e769f46e9c79909ac4318972b3fca9618d27d7e3fe65354d41825e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE8 22132 bytes
font_01_sfnt_off00005fc5.bin
b7885eeb21c037d6e291cfd3ce17327f297e1f43348acd9817a3c6707fbc52ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC5 19276 bytes