Malicious PDF — malware analysis report

Static analysis result for SHA-256 b53afaac5a43c2f5…

MALICIOUS

PDF

19.0 KB Created: 2020-03-17 03:56:43 +00:00 Authoring application: mPDF 5.7
MD5: 160c4bcadd2a6fc8ae5a12c46b8829e8 SHA-1: 4a852d0450025ea9647f4ce24f3b1d370b6d03b2 SHA-256: b53afaac5a43c2f553b2d32e9a4a057a35932a75f50795077da8cae9ae14e918
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs are likely used to redirect users to malicious sites or for SEO spamming purposes. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

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/681698169816581698162/Mystere-Marker-Mysterious-Marker-Pasajes-En-La-Obra-De-Chris-Marker-Passages-in-the-Works-of-Chris-Marker-by-Maria-L-Ortega.pdf
    • http://owlaokopdf.myhome.cx/681698169816581698163/Chris-Marker-Passengers-by-Chris-Marker.pdf
    • http://owlaokopdf.myhome.cx/681698169816481688163/The-Marker-Playbook-44-Simple-Exercises-to-Draw-Design-and-Dazzle-with-Your-Marker---Build-Your-Skills-Use-Your-Tools-by-Ana-Montiel.pdf
    • http://owlaokopdf.myhome.cx/681698169816581618164/Immemory-by-Chris-Marker.pdf
    • http://owlaokopdf.myhome.cx/481658163816781688167/Staring-Back-by-Chris-Marker.pdf
    • http://owlaokopdf.myhome.cx/681648163816481648167/Chris-Marker-La-Jetee-by-Janet-Harbord.pdf
    • http://owlaokopdf.myhome.cx/681648163816481688167/Films-Directed-by-Chris-Marker-Study-Guide-La-Jetee-One-Day-in-the-Life-of-Andrei-Arsenevich-Sans-Soleil-the-Last-Bolshevik-by-Books-Group.pdf
    • http://owlaokopdf.myhome.cx/681698169816681608160/The-Grave-Marker-by-Don-LaCroix.pdf
    • http://owlaokopdf.myhome.cx/681698169816581608167/The-Marker-by-Shelby-Morgen.pdf
    • http://owlaokopdf.myhome.cx/381618167816081648164/The-Marker-by-Meggan-Connors.pdf
    • http://owlaokopdf.myhome.cx/681698169816581658167/The-Fourth-Marker-by-L-William-Gibbons.pdf
    • http://owlaokopdf.myhome.cx/681698169816581658168/Norman-Rockwell-by-Sherry-Marker.pdf
    • http://owlaokopdf.myhome.cx/98168816981618161/Mile-Marker-Zero-by-William-McKeen.pdf
    • http://owlaokopdf.myhome.cx/281668160816181678161/Permanent-Marker-by-Angel-Payne.pdf
    • http://owlaokopdf.myhome.cx/281648166816481648167/Saint-Gaudens-Cypher-by-Meg-Penfield-Marker.pdf
    • http://owlaokopdf.myhome.cx/681698169816581668160/Fifteen-Steps-to-Corporate-Feudalism-by-Dennis-Marker.pdf
    • http://owlaokopdf.myhome.cx/681698169816581658169/Robotech-the-Macross-Saga-Sourcebook-by-Jason-Marker.pdf
    • http://owlaokopdf.myhome.cx/681698169816681608163/New-Marker-Techniques-A-Guide-To-Using-Markers-by-Yoshiharu-Shimizu.pdf
    • http://owlaokopdf.myhome.cx/881628166816781608168/Creative-Marker-Techniques-In-Combination-With-Mixed-Media-by-Yoshiharu-Shimizu.pdf
    • http://owlaokopdf.myhome.cx/681698169816581698169/Holy-Bible-Living-Large-Print-Crimson-Burgundy-Bonded-Leather-Gold-Edging-Red-Letter-Ribbon-Marker-by-Anonymous.pdf
    • http://owlaokopdf.myhome.cx/681648163816481688167/Films-Directed-by-Chris-Marker-Study-Guide-La-Jetee-One-Day-in-the-Life-of-Andrei-Arsenevich-Sans-Soleil-the-Last-Bolshe

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