Malicious PDF — malware analysis report

Static analysis result for SHA-256 52de822a4473565c…

MALICIOUS

PDF

20.2 KB Created: 2020-03-14 00:25:05 +00:00 Authoring application: mPDF 5.7
MD5: a3494ffb9e93579c66f5cbb83af7cc9e SHA-1: 51b79dad07c7407b09f32aef9d2f5906df8da915 SHA-256: 52de822a4473565c105cd188fa05cabe6fc1355dae3e16e1488843f844edbd57
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded links, specifically a link farm pointing to external PDF files. The primary attack pattern appears to be the distribution of malicious content through these numerous external links, potentially for SEO poisoning or to host further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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/178c078c078c978c178c0/Not-About-Nightingales-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/878c778c178c978c278c4/Cat-on-a-Hot-Tin-Roof-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/378c778c678c578c878c0/The-Dark-Room-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c378c978c278c878c2/The-Eccentricities-of-a-Nightingale-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/878c878c378c778c478c2/The-Glass-Menagerie-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/378c278c578c278c5/The-Glass-Menagerie-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/478c078c878c278c878c2/The-Night-of-the-Iguana-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/278c978c578c878c378c7/Baby-Doll-and-Other-Plays-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/378c178c578c078c278c0/A-Streetcar-Named-Desire-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/278c078c978c778c978c9/Sweet-Bird-of-Youth-by-Tennessee-Williams.pdf
    • http://tikytsesapdf.myhome.cx/978c678c678c678c5/Follies-of-God-Tennessee-Williams-and-the-Women-of-the-Fog-by-James-Grissom.pdf
    • http://tikytsesapdf.myhome.cx/778c378c078c578c278c0/Walking-on-Glass-A-Memoir-of-the-Later-Days-of-Tennessee-Williams-by-Scott-Kenan.pdf
    • http://tikytsesapdf.myhome.cx/178c078c778c178c778c1/The-Storm-Weaver-and-the-Sand-The-Change-3-by-Sean-Williams.pdf
    • http://tikytsesapdf.myhome.cx/178c078c778c278c478c478c7/-quot-Forever-Young-quot-Nach-Tennessee-Williams-quot-S-sser-Vogel-Jugend-Sweet-Bird-Of-Youth-quot-Eine-Bearbeitung-Von-Frank-Castorf-by-Carl-Hegemann.pdf
    • http://tikytsesapdf.myhome.cx/878c478c878c978c978c5/Hurricane-of-Independence-The-Untold-Story-of-the-Deadly-Storm-at-the-Deciding-Moment-of-the-American-Revolution-by-Tony--Williams.pdf
    • http://tikytsesapdf.myhome.cx/878c678c778c478c6/Storm-Warning---Storm-Rising---Storm-Breaking-by-Mercedes-Lackey.pdf
    • http://tikytsesapdf.myhome.cx/378c478c578c178c378c4/Surviving-The-Storm-Storm-Of-Love-3-by-Marissa-Storm.pdf
    • http://tikytsesapdf.myhome.cx/478c778c978c378c078c6/The-Eye-of-the-Storm-The-Album-Graphics-of-Storm-Thorgerson-with-Peter-Curzon-and-Jon-Crossland-by-Storm-Thorgerson.pdf
    • http://tikytsesapdf.myhome.cx/178c378c678c478c878c3/The-Collected-Poems-of-Williams-Carlos-Williams-1939-1962-by-William-Carlos-Williams.pdf
    • http://tikytsesapdf.myhome.cx/378c378c578c878c578c1/Agent-Storm-My-Life-Inside-Al-Qaeda-and-the-CIA-by-Morten-Storm.pdf
    • http://tikytsesapdf.myhome.cx/378c178c578c078c278c0/A-Streetcar-Named-Desire

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