Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7c23199806701e…

MALICIOUS

PDF

20.3 KB Created: 2019-05-03 06:30:54 +01:00 Authoring application: mPDF 5.7
MD5: c819d0ab000f868267426c19855a913b SHA-1: 140acc3356c43ee215a0969346afa5f888c4ca49 SHA-256: ba7c23199806701e038623f5a8ce4cd091ed3ac5c25f9edb04f7126ae4b3e6f7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which point to external PDF documents. The ML classifier also flagged this file as malicious. The embedded URLs are likely used to direct users to malicious content or phishing sites, disguised as book downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

Heuristics 2

  • 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.
  • 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://leakscaioiobook.4dq.com/2d0c3d0c3d0c7d0c5d0c2/Fool-s-Errand-by-Louis-Bayard.pdf
    • http://leakscaioiobook.4dq.com/4d0c8d0c6d0c3d0c1d0c9/Endangered-Species-by-Louis-Bayard.pdf
    • http://leakscaioiobook.4dq.com/8d0c2d0c9d0c4d0c2d0c7/-l-cole-de-la-Nuit-ROMANS-by-Louis-Bayard.pdf
    • http://leakscaioiobook.4dq.com/3d0c5d0c1d0c0d0c4/Sideways-Stories-from-Wayside-School-Wayside-School-1-by-Louis-Sachar.pdf
    • http://leakscaioiobook.4dq.com/6d0c6d0c5d0c4d0c5d0c1/A-Night-Out-Night-School-Revue-Sketches-Early-Plays-by-Harold-Pinter.pdf
    • http://leakscaioiobook.4dq.com/4d0c7d0c2d0c1d0c9/Wayside-School-Gets-A-Little-Stranger-Wayside-School-3-by-Louis-Sachar.pdf
    • http://leakscaioiobook.4dq.com/7d0c0d0c3d0c8d0c7d0c0/Time-on-Two-Crosses-The-Collected-Writings-of-Bayard-Rustin-by-Bayard-Rustin.pdf
    • http://leakscaioiobook.4dq.com/6d0c6d0c4d0c6d0c8d0c2/Les-Rois-de-France-Louis-XIII-Louis-XIV-Louis-XV-Louis-XVI-by-Jean-Christian-Petitfils.pdf
    • http://leakscaioiobook.4dq.com/3d0c9d0c3d0c0d0c3d0c0/Sideways-Stories-from-Wayside-School-by-Louis-Sachar.pdf
    • http://leakscaioiobook.4dq.com/7d0c3d0c3d0c2d0c5d0c9/Sideways-Stories-from-Wayside-School-by-Louis-Sachar.pdf
    • http://leakscaioiobook.4dq.com/7d0c0d0c3d0c9d0c1d0c5/I-Must-Resist-Bayard-Rustin-s-Life-in-Letters-by-Bayard-Rustin.pdf
    • http://leakscaioiobook.4dq.com/1d0c1d0c4d0c6/Endgame-Night-School-5-by-C-J-Daugherty.pdf
    • http://leakscaioiobook.4dq.com/4d0c8d0c7d0c9d0c6d0c9/Legacy-Night-School-2-by-C-J-Daugherty.pdf
    • http://leakscaioiobook.4dq.com/4d0c8d0c7d0c4d0c6d0c5/Night-School-Genesis-by-C-J-Daugherty.pdf
    • http://leakscaioiobook.4dq.com/4d0c3d0c9d0c2/Night-School-Jack-Reacher-21-by-Lee-Child.pdf
    • http://leakscaioiobook.4dq.com/4d0c0d0c7d0c2d0c8d0c9/Night-of-Pleasure-School-of-Gallantry-4-by-Delilah-Marvelle.pdf
    • http://leakscaioiobook.4dq.com/1d0c1d0c8d0c9d0c4/Snowy-Night-with-a-Stranger-School-for-Heiresses-4-5-by-Jane-Feather.pdf
    • http://leakscaioiobook.4dq.com/1d0c5d0c9d0c4d0c4d0c0/Night-School-Blood-Coven-Vampire-5-by-Mari-Mancusi.pdf
    • http://leakscaioiobook.4dq.com/8d0c3d0c4d0c3d0c2d0c5/Si-cle-de-Louis-XIV-Vol-1-Auquel-on-a-Joint-Un-Pr-cis-Du-Si-cle-de-Louis-XV-Et-Un-Autre-Morceau-D-Histoire-by-Voltaire.pdf
    • http://leakscaioiobook.4dq.com/8d0c7d0c6d0c7d0c8d0c5/The-Guide-for-Ohio-School-Officers-Containing-All-the-Law-of-Ohio-Applicable-to-School-Officers-with-Forms-and-Suggestions-for-the-Guidance-of-All-School-Officials-by-William-M-William-Mahlon-185-Rockel.pdf
    • http://leakscaioiobook.4dq.com/6d0c6d0c4d0c6d0c8d0c2/Les-Rois-de-France-Louis-XIII-

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