Malicious PDF — malware analysis report

Static analysis result for SHA-256 778f5c7e9198d7f0…

MALICIOUS

PDF

17.1 KB Created: 2020-03-16 23:41:07 +00:00 Authoring application: mPDF 5.7
MD5: afa35057ad8b38bbc92242756680eb81 SHA-1: 3e344107aa2dce640b678cbaa94eacd17e1730e1 SHA-256: 778f5c7e9198d7f0ffe60807d16f300ba779631ec42880d470a02b834120e57f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF document that contains a large number of embedded URLs, forming a link farm. The ML classifier also flagged this PDF as malicious. The primary function appears to be directing users to external websites, potentially for SEO manipulation or to serve further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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://calistazz.myhome.cx/9866864869863/The-Incredible-Life-of-a-Himalayan-Yogi-The-Times-Teachings-and-Life-of-Living-Shiva-Baba-Lokenath-Brahmachari-by-Shuddhaanandaa-Brahmachari.pdf
    • http://calistazz.myhome.cx/5860862868867867/Damn-A-Christmas-Book-with-Sex-Violence-Drugs-amp-Fruitcake-The-Aberrant-Art-of-Barry-Kite-All-Pictures-by-Barry-Kite.pdf
    • http://calistazz.myhome.cx/6868868865869868/The-Liberation-of-Sita-by-Volga.pdf
    • http://calistazz.myhome.cx/7861860867866865/For-the-Sake-of-Sita-by-Haga.pdf
    • http://calistazz.myhome.cx/3865861864864867/Sita-by-Kate-Millett.pdf
    • http://calistazz.myhome.cx/4863867866862867/The-Rape-of-Sita-by-Lindsey-Collen.pdf
    • http://calistazz.myhome.cx/7863865861863863/Rama-and-Sita-by-David-Weitzman.pdf
    • http://calistazz.myhome.cx/7863865863864861/Adventures-of-Rama-amp-Sita-by-M-Dorothy-Belgrave.pdf
    • http://calistazz.myhome.cx/2863866862860863/Red-Sapphire-The-Sita-Chronicles-1-by-Ashley-Mayers.pdf
    • http://calistazz.myhome.cx/7868860865867860/Searching-for-Life-s-Water-by-Sita-Jehanne-Mitchell.pdf
    • http://calistazz.myhome.cx/7867865861868868/Hindus-And-Hinduism-Manipulation-Of-Meanings-by-Sita-Ram-Goel.pdf
    • http://calistazz.myhome.cx/1861865869862865864/Walking-in-the-Spirit-A-Study-of-Paul-s-Teaching-on-the-Spirit-and-Ethics-in-Galatians-by-KWESI-OTOO.pdf
    • http://calistazz.myhome.cx/4861861864860865/Dark-Spirit-Spirit-Wild-2-by-Kate-Douglas.pdf
    • http://calistazz.myhome.cx/1869864863860868/School-Spirit-Day-Spirit-Week-3-by-Alshia-Moyez.pdf
    • http://calistazz.myhome.cx/7861866863863864/The-Kite-Runner-by-Khaled-Hosseini.pdf
    • http://calistazz.myhome.cx/4867864867869868/The-Flying-Kite-by-Victor-A-Davis.pdf
    • http://calistazz.myhome.cx/7867867867862/The-Kite-Runner-by-Khaled-Hosseini.pdf
    • http://calistazz.myhome.cx/7861863865860861/Mai-Tzu-And-The-Kite-Emperor-by-Wolfgang-Grasse.pdf
    • http://calistazz.myhome.cx/4860865863860/The-Kite-Rider-by-Geraldine-McCaughrean.pdf
    • http://calistazz.myhome.cx/3869868869862865/Bear-and-Kite-by-Cliff-Wright.pdf