Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c69306fcf6953b5…

MALICIOUS

PDF

18.2 KB Created: 2019-05-01 19:24:05 +01:00 Authoring application: mPDF 5.7
MD5: 271073fcd98c2205665e7f7a8e61a9b3 SHA-1: 1701a86bea63efcd3dbe4320eed4d423014361a4 SHA-256: 9c69306fcf6953b5bd4a72e6bb858134a7f62aedf808ad7164b2887f53e41fc5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external URLs, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated and unreadable, the presence of 32 links suggests an attempt to direct users to malicious content or for SEO poisoning. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://cmeinasaoo.duckdns.org/9b27b23b28b20b20/A-Good-Man-Is-Hard-to-Find-and-Other-Stories-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/1b26b29b22b27b27/A-Good-Man-Is-Hard-to-Find-and-Other-Stories-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/1b25b24b23b21b21/A-Good-Man-Is-Hard-to-Find-and-Other-Stories-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/8b24b29b25b29b27/Short-Stories-by-Flannery-O-connor-A-Good-Man-Is-Hard-to-Find-the-Geranium-the-Life-You-Save-May-Be-Your-Own-Revelation-the-Train-by-Books-LLC.pdf
    • http://cmeinasaoo.duckdns.org/1b26b22b24b20/A-Good-Man-Is-Hard-To-Find-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/1b21b20b26b22b25b28/Flannery-O-Connor-Complete-Stories-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/7b20b22b23b25/Good-Country-People-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/3b20b29b27b29/The-Complete-Stories-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/3b23b21b23b20b28/The-Complete-Stories-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/1b25b29b25b29/Everything-That-Rises-Must-Converge-Stories-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/2b27b21b27b28b27/The-Cartoons-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/5b24b27b26b24b27/The-Lame-Shall-Enter-First-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/6b28b26b28b22b27/Te-ko-je-najti-dobrega-loveka-in-druge-zgodbe-by-Flannery-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/2b23b23b21b21b24/Sasha-s-Story-How-to-Find-a-Mate-the-Hard-Way-by-Andromeda-Bliss.pdf
    • http://cmeinasaoo.duckdns.org/3b26b26b28b24b26/What-s-Going-on-Down-There-Answers-to-Questions-Boys-Find-Hard-to-Ask-by-Karen-Gravelle.pdf
    • http://cmeinasaoo.duckdns.org/1b24b21b27b20b25/It-s-Hard-to-Make-a-Difference-When-You-Can-t-Find-Your-Keys-The-Seven-Step-Path-to-Becoming-Truly-Organized-by-Marilyn-Paul.pdf
    • http://cmeinasaoo.duckdns.org/6b25b28b26/From-Here-to-Eternity-Traveling-the-World-to-Find-the-Good-Death-by-Caitlin-Doughty.pdf
    • http://cmeinasaoo.duckdns.org/4b28b26b26b22b22/Where-Are-the-Customers-Yachts-or-a-Good-Hard-Look-at-Wall-Street-by-Fred-Schwed.pdf
    • http://cmeinasaoo.duckdns.org/1b23b28b24b20b25/My-Oedipus-Complex-and-Other-Stories-by-Frank-O-39-Connor.pdf
    • http://cmeinasaoo.duckdns.org/2b27b22b29b25b26/Out-of-Order-Stories-from-the-History-of-the-Supreme-Court-by-Sandra-Day-O-39-Connor.pdf

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