Malicious PDF — malware analysis report

Static analysis result for SHA-256 9303d4c4c5aa2ebc…

MALICIOUS

PDF

20.9 KB Created: 2020-03-17 04:11:29 +00:00 Authoring application: mPDF 5.7
MD5: 0c69d6ccbfa010181cd658ebc4b42da3 SHA-1: 36f24adcf5ad8f0e677dbe66a7260f5a405c7ce8 SHA-256: 9303d4c4c5aa2ebcd44db6887c850d72ad948cb3aab8e7290be6f4856f15b230
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. The ML classifier also flagged this PDF as malicious. The primary attack pattern appears to be SEO manipulation or redirection to malicious content via these links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://owlaokopdf.myhome.cx/881698162816481648162/Funk-Bass-A-Guide-to-the-Techniques-and-Philosophies-of-Funk-Bass-by-Chris-Kringel.pdf
    • http://owlaokopdf.myhome.cx/181678161816981678168/Forrest-Gump-by-Hal-Leonard-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/881608164816381678167/High-School-Musical-2-by-Hal-Leonard-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/181618160816681688163/The-Last-Song-Music-from-the-Motion-Picture-Soundtrack-by-Hal-Leonard-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/881698162816581688167/Funk-Bass-Bass-Builders-Series-by-Jon-Liebman.pdf
    • http://owlaokopdf.myhome.cx/781638163816681678166/Christmas-Songs-Harmonica-Fun-With-Harmonica-by-Hal-Leonard-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/781638163816681668163/The-Disney-Collection-Harmonica-Fun-With-Harmonica-by-Hal-Leonard-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/681638168816481608163/The-Roman-Catholic-Diocese-of-Owensboro-Kentucky-by-Turner-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/581698168816381678166/Bass-Reeves-and-Katie-Quantrill-A-Bass-Reeves-Gunfighter-Western-Adventure-Novel-The-Law-Enforcers-A-Bass-Reeves-Western-Series-Book-1-by-Fred-Staff.pdf
    • http://owlaokopdf.myhome.cx/581608169816081648168/Company-of-Heralds-A-Century-and-a-Half-of-Australian-Publishing-by-John-Fairfax-Limited-and-Its-Predecessors-1831-1981-by-Gavin-Geoffrey-Souter.pdf
    • http://owlaokopdf.myhome.cx/981648162816981648160/Knopf-MapGuide-Edinburgh-by-Alfred-A-Knopf-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/981648162816881678167/Knopf-MapGuide-Washington-D-C-by-Alfred-A-Knopf-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/981648162816881688168/Knopf-MapGuide-Tokyo-by-Alfred-A-Knopf-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/981648162816781628162/Knopf-MapGuide-New-York-by-Alfred-A-Knopf-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/881698162816381698162/Alora-Funk--The-Deliverance-Alora-Funk-1-by-Stephanie-Daich.pdf
    • http://owlaokopdf.myhome.cx/681618169816681668166/The-Bass-Trail-El-Caminito-Bass-by-Gaude-Timor.pdf
    • http://owlaokopdf.myhome.cx/981648162816881638164/Knopf-Guide-Singapore-and-Malaysia-Knopf-Guides-by-Alfred-A-Knopf-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/781638164816381688165/Knopf-Guide-Athens-and-the-Peloponnese-Knopf-Guides-by-Alfred-A-Knopf-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/981648162816881618167/Knopf-Guide-Provence-Knopf-Guides-by-Alfred-A-Knopf-Publishing-Company.pdf
    • http://owlaokopdf.myhome.cx/981648162816781628164/Knopf-Guide-San-Francisco-Knopf-Guides-by-Alfred-A-Knopf-Publishing-Company.pdf