Malicious PDF — malware analysis report

Static analysis result for SHA-256 713569189b8de67a…

MALICIOUS

PDF

17.5 KB Created: 2019-05-02 17:29:24 +01:00 Authoring application: mPDF 5.7
MD5: da4b903ba7e2475ce3ac13e90d8168d1 SHA-1: a02058e33216534d1d1903db7b606bbfde02836a SHA-256: 713569189b8de67ae5db2e21ba3c2fa28a3241688e0fa36c6a628fda0037c16f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous external links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. No scripts were extracted, but the PDF structure and URL distribution indicate a likely spearphishing attachment aiming to drive traffic to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

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://cefasfese.4pu.com/9738734731730734/V-llig-aus-dem-H-uschen-Das-Workbook-f-r-ein-aufger-umtes-Leben-by-Nicole-Steffens.pdf
    • http://cefasfese.4pu.com/8734735735733738/Rien-de-ce-qui-est-inhumain-ne-m-est-tranger-El-Eloge-du-combat-spirituel-by-Martin-Steffens.pdf
    • http://cefasfese.4pu.com/2731735735739738/The-Real-Lincoln-A-New-Look-at-Abraham-Lincoln-His-Agenda-and-an-Unnecessary-War-by-Thomas-J-DiLorenzo.pdf
    • http://cefasfese.4pu.com/7733733737731730/The-Lincoln-Memorial-Album-Immortelles-Excerpts-by-Abraham-Lincoln.pdf
    • http://cefasfese.4pu.com/9738734736739/Vote-Lincoln-the-Presidential-Campaign-Biography-of-Abraham-Lincoln-1860-Restored-and-Annotated-by-John-Locke-Scripps.pdf
    • http://cefasfese.4pu.com/3734731732732736/The-Lincoln-Lawyer-Novels-The-Lincoln-Lawyer-The-Brass-Verdict-The-Reversal-by-Michael-Connelly.pdf
    • http://cefasfese.4pu.com/5739736730730731/The-Wit-and-Wisdom-of-Abraham-Lincoln-A-Book-of-Quotations-by-Abraham-Lincoln.pdf
    • http://cefasfese.4pu.com/4733737735738739/Abraham-Lincoln-Great-Speeches-by-Abraham-Lincoln.pdf
    • http://cefasfese.4pu.com/4732737737732736/Lincoln-Raw-by-D-L-Fowler.pdf
    • http://cefasfese.4pu.com/8733739739734/Lincoln-by-Gore-Vidal.pdf
    • http://cefasfese.4pu.com/1730732739735735/The-Day-Lincoln-Was-Shot-by-Jim-Bishop.pdf
    • http://cefasfese.4pu.com/8734731732736/Utopia-by-Lincoln-Child.pdf
    • http://cefasfese.4pu.com/2734732731732731/Big-Nate-I-Can-t-Take-It-by-Lincoln-Peirce.pdf
    • http://cefasfese.4pu.com/4732731737734731/The-Everywhere-House-by-Sherry-Lincoln.pdf
    • http://cefasfese.4pu.com/4737737731735737/Martyrs-by-Justin-L-Lincoln.pdf
    • http://cefasfese.4pu.com/1731730736734730731/Wanderer-by-James-Lincoln.pdf
    • http://cefasfese.4pu.com/4738734736733738/Lincoln-s-Billy-by-Tom-LeClair.pdf
    • http://cefasfese.4pu.com/4738736736732/A-Lincoln-by-Ronald-C-White-Jr-.pdf
    • http://cefasfese.4pu.com/8732737733734733/Abe-Lincoln-s-Hat-by-Martha-F-Brenner.pdf
    • http://cefasfese.4pu.com/2735735734734739/The-Last-Days-of-Lincoln-by-Mark-Van-Doren.pdf

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