Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a61a4815252caea…

MALICIOUS

PDF

34.1 KB Created: 2021-06-26 15:36:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2b0a670a38734e56298e3d44b5ebe079 SHA-1: 23393be6bf42d94415980c1d51e84b9a45dc1699 SHA-256: 3a61a4815252caeae66398e14ea4450dfbc402927f9520a6e0e3b5dd03375edd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple heuristics indicating malicious intent, including a browser installation lure and external URI pointing to a suspicious executable. The embedded URLs and document body suggest a social engineering attempt to trick users into downloading a file disguised as a game hack or cheat. No scripts were extracted from this sample, but the presence of external links and the ML classifier output strongly indicate a malicious payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/edit-this-cookie-roblox-hack-game-hack
    • http://perpus.ar-rum.ac.id//repository/roblox-fun-com-robux_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/free-robux-codes-not-used_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-spins-link-blogspot_GM406889139.pdf
    • http://perpus.ar-rum.ac.id/repository/which-are-the-best-free-level-7-exploits-for-roblox_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/roblox-hack-generator_GM431946152.pdf
    • http://perpus.ar-rum.ac.id/repository/free-hair-roblox-boy_GM431946152.pdf
    • http://perpus.ar-rum.ac.id/repository/2021-free-robux-on-roblox_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/minecraft-toys-for-free_GM479516143.pdf
    • http://perpus.ar-rum.ac.id/repository/business-cat-roblox-free_GM431946152.pdf
    • http://perpus.ar-rum.ac.id/repository/how-to-hack-on-roblox-skyleree_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/how-to-hack-someones-roblox-account_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/free-coin-master-links_GM406889139.pdf
    • http://perpus.ar-rum.ac.id/repository/free-military-shirt-roblox_GM431946152.pdf
    • http://perpus.ar-rum.ac.id/repository/hack-robux-2021_GM431946152.pdf
    • http://perpus.ar-rum.ac.id/repository/how-to-get-free-minecraft-skins_GM479516143.pdf
    • http://perpus.ar-rum.ac.id/repository/how-to-get-free-shirt-in-roblox-2021_GM431946152.pdf
    • http://perpus.ar-rum.ac.id/repository/roblox-got-talent-piano-hack-script_GM431946152.pdf
    • http://perpus.ar-rum.ac.id//repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://perpus.ar-rum.ac.id/repository/blackberry-hacks-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fbe.bin
96b03de9da9a84957130a7dc50ba388146c059e028181a3de27a96819a6d44b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBE 21792 bytes
font_01_sfnt_off00005f9d.bin
ebe112372bae4396332ff19e55e1512c773c3b370493fe5c568f92854315c069		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9D 19220 bytes

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