Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9107230742c1efc…

MALICIOUS

PDF

22.0 KB Created: 2020-03-19 03:52:58 +00:00 Authoring application: mPDF 5.7 First seen: 2021-10-23
MD5: 609cb987055ef0911961b9b38ae8d248 SHA-1: 0e2e28a67d94366ff9d7d8369fb6fb63b8d2e6b6 SHA-256: b9107230742c1efc438495fab408e7ec69a24dbaae209b8433c0f4e83094590c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm, which is a common tactic for SEO poisoning or distributing malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The primary goal appears to be directing users to external PDF files hosted on a suspicious domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/881618162816781658169/The-Basic-Problems-of-Phenomenology-Studies-in-Phenomenology-amp-Existential-Philosophy-by-Martin-Heidegger.pdf In PDF document text
    • http://owlaokopdf.myhome.cx/381698166816481618165/Ideas-Pertaining-to-a-Pure-Phenomenology-and-to-a-Phenomenological-Philosophy-Second-Book-Studies-in-the-Phenomenology-of-Constitution-by-Edmund-Husserl.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/681648165816581658163/Phenomenology-and-Phantasmatology-On-the-Philosophy-of-Georges-Bataille-by-Rodolphe-Gasch-.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/981608164816381688167/Routledge-Philosophy-Guidebook-to-Hegel-and-the-Phenomenology-of-Spirit-by-Robert-Stern.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/281638167816781638163/Heidegger-s-Ghost-Applications-of-Existential-Philosophy-as-a-Therapeutic-Model-by-Hannah-Spicer.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/981638161816581648161/Basic-Problems-of-Philosophy-by-Daniel-J-Bronstein.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/981668162816181698168/Basic-Problems-Of-Marx-s-Philosophy-by-Natan-Ro-ensh-raikh.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/281678161816481638162/Contributions-to-Philosophy-from-Enowning-by-Martin-Heidegger.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/281628162816481608162/The-Phenomenology-Reader-by-Dermot-Moran.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/381698167816581668163/Phenomenology-and-Art-by-Jos-Ortega-y-Gasset.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/281628162816481608166/Phenomenology-of-Perception-by-Maurice-Merleau-Ponty.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/481658161816681668160/Husserl-An-Analysis-of-His-Phenomenology-by-Paul-Ric-ur.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/681618163816081678161/Phenomenology-Rhetoric-Commun-by-Stanley-Yeditorr-Deetz.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/1816181668166816581638166/Phenomenology-of-Spirit-by-Georg-Wilhelm-Friedrich-Hegel.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/981608164816481698167/Hegel-s-Phenomenology-of-Spirit-An-Introduction-by-Larry-Krasnoff.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/681618160816981618166/Phenomenology-and-Mysticism-The-Verticality-of-Religious-Experience-by-Anthony-J-Steinbock.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/88167816881638161/Preface-to-the-Phenomenology-of-Spirit-by-Georg-Wilhelm-Friedrich-Hegel.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/1816081648164816681608161/Phenomenology-of-Self-Consciousness-Text-amp-Commentary-by-Georg-Wilhelm-Friedrich-Hegel.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/481698165816581668162/Buddhist-Phenomenology-A-Philosophical-Investigation-of-Yogacara-Buddhism-and-the-Ch-eng-Wei-Shih-Lun-by-Dan-Lusthaus.pdfIn PDF document text
    • http://owlaokopdf.myhome.cx/681658166816381648162/Basic-Problems-Of-Neurolinguistics-by-Alexander-R-Luria.pdfIn PDF document text

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