Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca950dbdea00d21c…

MALICIOUS

PDF

21.9 KB Created: 2019-05-02 17:40:16 +01:00 Authoring application: mPDF 5.7
MD5: b8b499c205a8aebc560eed4ae2111b35 SHA-1: 771434c4daf961293025d16a915cde15b1fcd758 SHA-256: ca950dbdea00d21c7dfffb96845e1c3f67e04745e49d8cac2eb0369872df49a8
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, characteristic of a link farm designed to manipulate search engine rankings or distribute content. The ML classifier strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated, but the primary attack pattern is the distribution of links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://unieoooq.linkpc.net/64e54e74e14e74e7/Warrior-s-Children-A-Healing-Book-For-The-Families-Of-Veterans-by-Trisha-Mahi.pdf
    • http://unieoooq.linkpc.net/14e04e64e44e64e34e2/Healing-Salves-30-Homemade-Salves-with-Great-Healing-Power-healing-salve-mtg-healing-salve-book-healing-salve-book-herbal-remedies-by-Christina-Davis.pdf
    • http://unieoooq.linkpc.net/14e14e44e64e64e34e2/First-100-Essential-Words-English---Japanese-Children-s-first-book-first-Picture-Books-Preschool-Book-Ages-0-3-Baby-first-Books-Book-for-toddlers-Book-for-beginners-Children-s-Pictu-by-Isabelle-Jeanna.pdf
    • http://unieoooq.linkpc.net/64e54e74e04e24e0/Three-King-Mackerel-and-a-Mahi-Mahi-by-Caroline-Clemens.pdf
    • http://unieoooq.linkpc.net/84e64e44e84e9/Rachel-and-Her-Children-Homeless-Families-in-America-by-Jonathan-Kozol.pdf
    • http://unieoooq.linkpc.net/34e94e94e64e24e2/Teen-2-0-Saving-Our-Children-and-Families-from-the-Torment-of-Adolescence-by-Robert-Epstein.pdf
    • http://unieoooq.linkpc.net/24e64e94e54e14e8/Building-Integrated-Connections-for-Children-Their-Families-and-Communities-by-Karl-Brettig.pdf
    • http://unieoooq.linkpc.net/24e24e44e44e54e4/The-Lost-Children-Reconstructing-Europe-s-Families-After-World-War-II-by-Tara-Zahra.pdf
    • http://unieoooq.linkpc.net/34e74e04e04e84e6/All-the-Presidents-Children-Triumph-and-Tragedy-in-the-Lives-of-America-s-First-Families-by-Doug-Wead.pdf
    • http://unieoooq.linkpc.net/84e24e84e14e14e1/Children-of-the-Welfare-State-Civilising-Practices-in-Schools-Childcare-and-Families-by-Laura-Gilliam.pdf
    • http://unieoooq.linkpc.net/64e54e74e04e34e2/aaja-mahi-aaja-mahi-Video-Song-Aaryan-by-saruar.pdf
    • http://unieoooq.linkpc.net/14e04e34e04e54e64e7/Teaching-Empathy-Animal-Assisted-Therapy-Programs-for-Children-and-Families-Exposed-to-Violence-by-Lynn-Lohr.pdf
    • http://unieoooq.linkpc.net/24e54e44e14e34e5/Coloring-Book-Fruits-Coloring-Book-For-Children-Coloring-Book-Vegetables-Coloring-Book-For-Children-1-by-Hilda-Flowers.pdf
    • http://unieoooq.linkpc.net/44e84e54e94e94e7/Bloodlines-Book-1-of-the-5-Kingdom-s-of-Fae-series-by-Trisha-L-Brown.pdf
    • http://unieoooq.linkpc.net/34e34e44e74e14e7/The-Mammoth-Book-of-Futuristic-Romance-by-Trisha-Telep.pdf
    • http://unieoooq.linkpc.net/14e54e24e04e54e4/The-Mammoth-Book-of-Special-Ops-Romance-by-Trisha-Telep.pdf
    • http://unieoooq.linkpc.net/24e44e04e34e14e0/The-Mammoth-Book-Of-Paranormal-Romance-2-by-Trisha-Telep.pdf
    • http://unieoooq.linkpc.net/44e84e04e64e14e3/Families-Families-Families-by-Suzanne-Lang.pdf
    • http://unieoooq.linkpc.net/24e94e84e74e94e9/Dark-Warrior-s-Legacy-The-Children-of-the-Gods-10-by-I-T-Lucas.pdf
    • http://unieoooq.linkpc.net/84e04e74e54e94e3/The-Mammoth-Book-of-Southern-Gothic-Romance-by-Trisha-Telep.pdf
    • http://unieoooq.linkpc.net