Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2347536219c533e…

MALICIOUS

PDF

35.7 KB Created: 2021-06-18 22:11:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b789974d46992b86c5525b475933d009 SHA-1: 2855381b4b5cbf096036846c98a21c1f292a2528 SHA-256: d2347536219c533eddaf7522c2226f3ff86d09bdd0eec8679d7fb8a8c6bf107d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that are part of a link farm, suggesting a deceptive purpose. The document body and extracted URLs indicate lures related to game hacks and cheats, likely intended to trick users into downloading malicious files or visiting phishing sites. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a deceptive attack pattern.

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/caught-my-girlfriend-cheating-on-me-roblox-game-hack
    • http://digilib.ulm.ac.id/pusat/repository/how-to-hack-coin-master_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-online-hack-no-human-verification_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-game-download_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/rbxfree-com-free-robux_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-free-robux-hack-2021_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-generator-without-human-verification_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-2021-free-spins-link-2021_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-free-spins-coins_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdf
    • http://digilib.ulm.ac.id/pusat/repository/get-free-spins-coin-master_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-attacks-on-coin-master_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-coins-coin-master-link_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/www-roblox-cheat-u_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-blog_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-free-tiktok-followers_GM835599320.pdf
    • http://digilib.ulm.ac.id/pusat/repository/haktuts-coin-master-free-spins_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/hack-coin-master-link_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-any-item-in-roblox-for-free-2021_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/dll-hack-roblox-lumber-tycoon_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000327a.bin
37dfd7deb6b2affa2e7358ed2b3a26d02b43c284fcf393efec731c1bcf5c9548		 pdf-font-stream PDF embedded font (sfnt) at offset 0x327A 22728 bytes
font_01_sfnt_off000064f1.bin
45b3d250f7e4172961a6e71aa70628be5ad78295445ef5f9e84c42695898259f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F1 19568 bytes

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