Malicious PDF — malware analysis report

Static analysis result for SHA-256 b20c0ee54c7de1d4…

MALICIOUS

PDF

34.2 KB Created: 2021-06-29 09:18:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 68a44044e0f473b9b36cae7986042a0d SHA-1: 2998674fc55c9a907e78e2124dd35331e796c4ca SHA-256: b20c0ee54c7de1d4017782f735c8f7318bf40dcee4df153df5b21354e794644e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that link to sites offering 'hacks' for games like Roblox and Coin Master, suggesting a lure for users seeking cheats or exploits. The ML classifier strongly indicates malicious intent, and the presence of a 'download button' heuristic further supports a phishing or malware distribution scenario. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to potentially harmful content.

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-money-hack-tool-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library//repository/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-robux-2021-august_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-roblox-on-xbox-one_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-codes-live-youtube_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-project-lazarus-zombies-hack-script_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/spped-hack-2021-november-for-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-com_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/www-hacker-com-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E10 22780 bytes
SHA-256: 680f738c330452625650da7309609296582c4a45b560f19c4c2c354a45a112da
font_01_sfnt_off000060aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AA 19032 bytes
SHA-256: eb44468ee55660eaa47ef827564549e17172714971613a3c027407b17b8bdf20

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