Malicious PDF — malware analysis report

Static analysis result for SHA-256 16c2183ec781ea20…

MALICIOUS

PDF

18.7 KB Created: 2019-04-29 23:05:59 +01:00 Authoring application: mPDF 5.7
MD5: 883356b7e728ac953faea1d75673cfa4 SHA-1: e1af97a8959b3a45563b5aad4f6e1a188ca049b6 SHA-256: 16c2183ec781ea20635e3bc36ef0e493f0a3510f2b0115382ae2cbc8291f10d2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a PDF_SEO_LINK_FARM heuristic. While the document body is unreadable, the presence of numerous links suggests an attempt to manipulate search engine results or to redirect users to potentially malicious content hosted on external domains. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://zacdsa.linkpc.net/4c51c51c52c56/Precious-and-the-Monkeys-Precious-Ramotswe-s-Very-First-Cases-1-by-Alexander-McCall-Smith.pdf
    • http://zacdsa.linkpc.net/3c51c58c53c53c53/Precious-and-the-Mystery-of-Meerkat-Hill-Precious-Ramotswe-s-Very-First-Cases-2-by-Alexander-McCall-Smith.pdf
    • http://zacdsa.linkpc.net/9c59c50c55c55/Devotion-to-the-Most-Precious-Blood-of-Our-Lord-Jesus-Christ-The-Greatest-Devotion-of-Our-Time-a-Call-to-Holiness-by-Apostolate-for-the-Precious-Blood.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c51c52/Frigid-by-Charles-A-Jones.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c59c50/Frigid-Wife-by-Orrie-Hitt.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c59c52/Frigid-Impact-by-Connie-McCarty.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c52c56/Medius-V-The-Frigid-Wastes-by-R-W-Holmes.pdf
    • http://zacdsa.linkpc.net/1c59c58c55c53c50/Frigid-Frenemy-1-by-Kate-Benson.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c50c59/Choke-Frigid-Emaciation-1-by-Serena-Siren.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c52c58/The-Far-Frigid-North-Scared-Spitless-by-Patrick-Marks.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c59c55/Frigid-Winds-and-Burning-Hearts-by-Grey-Prophet.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c50c54/The-Cause-of-Warm-and-Frigid-Periods-by-Charles-Austin-Mendell-Taber.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c53c55/Confessions-of-a-Frigid-Man-A-Philosopher-s-Journey-into-the-Hidden-Layers-of-Men-s-Sexuality-by-Takeshi-Morisato.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c53c52/Frigid-A-Daring-Funny-and-Original-Novel-by-the-Best-Selling-Author-of-The-Hourglass-Man-by-Carl-Tiktin.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c53c53/Fixing-The-Frigid-Wife-Bimbo-Milf-Cuckold-Brainless-Bimbos-Book-3-by-Alice-Locke.pdf
    • http://zacdsa.linkpc.net/5c59c50c58c51c54/The-Little-Boy-Who-Was-Precious-by-Reagan-Chesnut.pdf
    • http://zacdsa.linkpc.net/7c55c50c55c57/Precious-Pearls-by-Darussalam.pdf
    • http://zacdsa.linkpc.net/2c56c54c59c52c59/Ain-t-He-Precious-Sex-and-Sweet-Tea-1-by-Juliette-Poe.pdf
    • http://zacdsa.linkpc.net/2c58c55c58c51c50/The-Precious-Present-by-Spencer-Johnson.pdf
    • http://zacdsa.linkpc.net/1c52c55c53c51c59/A-Precious-Stone-by-Leslie-M-Arno.pdf

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