Malicious PDF — malware analysis report

Static analysis result for SHA-256 19c89550526bb34a…

MALICIOUS

PDF

15.5 KB Created: 2019-04-30 07:47:05 +01:00 Authoring application: mPDF 5.7
MD5: 4f1462da57a9f50867d5e5902c805140 SHA-1: 21f8977d4c8ed148fea13b8f89d0501d854fbbf9 SHA-256: 19c89550526bb34a975439193eba0d0dd9de9710711f63fc9e8734d7157f55b0
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While most URLs were confirmed benign, the sheer volume and the heuristic firing of PDF_SEO_LINK_FARM suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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://muicuiu.dumb1.com/8a02a06a09a00a02/The-Sport-of-the-Gods-by-Paul-Laurence-Dunbar.pdf
    • http://muicuiu.dumb1.com/1a01a05a02a01a05a01/The-Lyrics-Of-Lowly-Life-by-Paul-Laurence-Dunbar.pdf
    • http://muicuiu.dumb1.com/9a08a08a00a06a03/Breathturn-into-Timestead-The-Collected-Later-Poetry-by-Paul-Celan.pdf
    • http://muicuiu.dumb1.com/1a01a01a09a07a01a06/An-Introduction-to-West-Indian-Poetry-by-Laurence-A-Breiner.pdf
    • http://muicuiu.dumb1.com/6a09a01a04a03a01/The-Works-and-Life-of-Laurence-Sterne-The-Life-and-Opinions-of-Tristram-Shandy-Gentleman-by-Laurence-Sterne.pdf
    • http://muicuiu.dumb1.com/8a00a07a09a07/Getting-Into-Poetry-A-Readers-and-Writers-Guide-to-the-Poetry-Scene-by-Paul-Hyland.pdf
    • http://muicuiu.dumb1.com/4a08a05a09a02a03/Imp-Imp-World-0-5-by-Debra-Dunbar.pdf
    • http://muicuiu.dumb1.com/1a07a07a04a05a05/What-Remains-by-Helene-Dunbar.pdf
    • http://muicuiu.dumb1.com/1a04a02a02a04a02/Our-Land-Too-by-Tony-Dunbar.pdf
    • http://muicuiu.dumb1.com/4a02a06a07a06a05/The-Very-Small-by-Joyce-Dunbar.pdf
    • http://muicuiu.dumb1.com/1a01a08a07a01a05/The-Secret-Dr-Steven-Dunbar-10-by-Ken-McClure.pdf
    • http://muicuiu.dumb1.com/3a09a03a03a07a02/Paradise-Tempted-The-Beginning-by-L-B-Dunbar.pdf
    • http://muicuiu.dumb1.com/3a08a09a07a02a04/Eye-Of-The-Raven-Dr-Steven-Dunbar-5-by-Ken-McClure.pdf
    • http://muicuiu.dumb1.com/6a05a06a00a01a03/Poems-from-the-Heart-by-Lelia-Dunbar.pdf
    • http://muicuiu.dumb1.com/2a09a04a02a09a09/Queen-of-the-Damned-Imp-9-by-Debra-Dunbar.pdf
    • http://muicuiu.dumb1.com/2a09a06a06a03a08/Deception-Dr-Steven-Dunbar-2-by-Ken-McClure.pdf
    • http://muicuiu.dumb1.com/2a03a01a01a02a05/The-Morning-Star-Imp-10-by-Debra-Dunbar.pdf
    • http://muicuiu.dumb1.com/4a04a07a03a07a06/Flyaway-Katie-by-Polly-Dunbar.pdf
    • http://muicuiu.dumb1.com/2a02a04a09a01a06/Margaret-Cape-by-Wylene-Dunbar.pdf
    • http://muicuiu.dumb1.com/2a08a06a07a02a00/Three-Wishes-Imp-World-10-by-Debra-Dunbar.pdf
    • http://muicuiu.dumb1.com/4a02a06a07a06a05/The-Very-Small-by-Joy

Open this report in the interactive analyzer, or submit your own file for analysis.