Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd2821f782a7c9fe…

MALICIOUS

PDF

17.9 KB Created: 2020-03-12 02:18:33 +00:00 Authoring application: mPDF 5.7
MD5: 91d7c92c3189dcaefd0673e544da5f5e SHA-1: bec471335694ee5437d8f6f20f5125ec9755545d SHA-256: dd2821f782a7c9fe1bcc070db7e5a69c993222e9ababf035ac4206c82778bc1c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which strongly suggests a link farm or redirection attack. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. The embedded URLs are likely used to redirect users to malicious websites or download further payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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://tikytsesapdf.myhome.cx/178c378c678c478c878c3/The-Collected-Poems-of-Williams-Carlos-Williams-1939-1962-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/878c478c378c778c7/Selected-Poems-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/178c678c078c078c8/Pictures-from-Brueghel-and-Other-Poems-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/178c678c278c478c4/The-Desert-Music-and-Other-Poems-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/178c378c878c178c678c3/Imaginations-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/378c178c778c078c378c6/In-the-American-Grain-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/278c378c778c478c178c3/The-Doctor-Stories-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/778c078c178c978c7/A-River-of-Words-The-Story-of-William-Carlos-Williams-by-Jen-Bryant.pdf
    • http://tikytsesapdf.myhome.cx/378c078c978c778c278c8/Cooking-at-Home-Williams-Sonoma-by-Chuck-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c778c778c478c278c1/Just-Williams-An-Autobiography-by-Kenneth-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c178c778c978c978c0/The-Complete-Writings-of-Roger-Williams---Volume-3-Bloudy-Tenent-of-Persecution-by-Roger-Williams.pdf
    • http://tikytsesapdf.myhome.cx/878c278c378c978c478c6/The-Poems-of-Rowan-Williams-by-Rowan-Williams.pdf
    • http://tikytsesapdf.myhome.cx/878c278c078c978c2/The-Visiting-Privilege-New-and-Collected-Stories-by-Joy-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c878c378c478c078c8/The-Stone-of-Life-and-other-poems-by-Kim-Williams.pdf
    • http://tikytsesapdf.myhome.cx/678c278c078c078c278c2/Poems-for-Jeremy-Corbyn-by-Merryn-Williams.pdf
    • http://tikytsesapdf.myhome.cx/178c578c578c278c3/The-Peacock-Poems-by-Sherley-Anne-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c178c778c778c178c4/Mr-William-Shakespeare-s-Plays-by-Marcia-Williams.pdf
    • http://tikytsesapdf.myhome.cx/678c878c878c978c078c7/Bravo-Mr-William-Shakespeare-by-Marcia-Williams.pdf
    • http://tikytsesapdf.myhome.cx/278c978c778c978c678c1/Blackbird-Dust-Essays-Poems-and-Photographs-by-Jonathan-Chamberlain-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c578c478c778c078c3/An-Ear-in-Bartram-s-Tree-Selected-Poems-1957-1967-by-Jonathan-Chamberlain-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c778c778c478c278c1/Just-Williams-An-Autobiography-by-Kenneth-Williams.p

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