Malicious PDF — malware analysis report

Static analysis result for SHA-256 7adcc226c9d70e3e…

MALICIOUS

PDF

34.7 KB Created: 2021-06-23 05:37:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 954a6be3ecfe5b166f745fa61aed4bad SHA-1: 515701f67f8ea556da2b044740ae02554d3e1076 SHA-256: 7adcc226c9d70e3ecd7cf9eb193ff4bd07edb77cfdcdc47f40c125c083def77c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded URLs, many of which are structured as SEO link farms, suggesting a deceptive purpose. The document body and heuristics indicate a lure for free Robux or game hacks, likely leading to a malicious download or phishing site. The presence of external URIs and the ML classifier's high confidence score support this assessment.

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/free-robux-codes-2021-not-expired-game-hack
    • http://digilib-pps.unja.ac.id/repository/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdf
    • http://digilib-pps.unja.ac.id/repository/websites-that-give-free-robux_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/free-robux-gift-cards-live-now_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/minecraft-realms-free-trial_GM479516143.pdf
    • http://digilib-pps.unja.ac.id/repository/mcpe-hacks_GM479516143.pdf
    • http://digilib-pps.unja.ac.id/repository/coin-master-free-spins-2021-blogspot_GM406889139.pdf
    • http://digilib-pps.unja.ac.id/repository/pig-master-coin-master-free-spin_GM406889139.pdf
    • http://digilib-pps.unja.ac.id/repository/windows-10-minecraft-free-with-java_GM479516143.pdf
    • http://digilib-pps.unja.ac.id/repository/minecraft-server-hacks_GM479516143.pdf
    • http://digilib-pps.unja.ac.id/repository/free-robux-sites-2021_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/free-robux-on-ipad_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/como-tener-robux-hack-2021-funcionando_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/roblox-game-free-download_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/free-roblox-exploits-that-supports-loadstrings_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/roblox-booga-booga-hack_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/how-to-get-roebucks-on-roblox_GM431946152.pdf
    • http://digilib-pps.unja.ac.id/repository/minecraft-pe-015-0-apk-free-download_GM479516143.pdf
    • http://digilib-pps.unja.ac.id/repository/coin-master-spin-link-today-2021_GM406889139.pdf
    • http://digilib-pps.unja.ac.id/repository/apps-to-hack-coin-master_GM406889139.pdf
    • http://digilib-pps.unja.ac.id/repository/hack-minecraft_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ef1.bin
052af359ab40384f2a35eaa8f8f03d321991738e35659dcc2e0fadea9edab376		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF1 22280 bytes
font_01_sfnt_off00006099.bin
1e73f38436763f7d24501e0ef3ead5a7cb9ca39a1ae5c8f7dcf457d52afc902a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6099 19692 bytes

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