Malicious PDF — malware analysis report

Static analysis result for SHA-256 a255ae674a8c5c3f…

MALICIOUS

PDF

22.4 KB Created: 2020-03-18 17:38:38 +00:00 Authoring application: mPDF 5.7
MD5: 9dde2daa20507fa026edeba99fd62113 SHA-1: 33814e902153d8532ac76f62684ce2775bc82fe7 SHA-256: a255ae674a8c5c3fa40e7731edd52f584187f931cd62288ee2fb43fb86621a96
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, 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 websites or to manipulate search engine rankings.

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://tanceubio.myhome.cx/43d03d03d03d9/The-Sense-of-Style-The-Thinking-Person-s-Guide-to-Writing-in-the-21st-Century-by-Steven-Pinker.pdf
    • http://tanceubio.myhome.cx/13d13d53d23d83d13d4/Genealogical-Writing-in-the-21st-Century-A-Guide-to-Register-Style-and-More-by-Henry-B-Hoff.pdf
    • http://tanceubio.myhome.cx/13d13d93d63d83d23d3/The-Global-Novel-Writing-the-World-in-the-21st-Century-by-Adam-Kirsch.pdf
    • http://tanceubio.myhome.cx/43d63d23d13d33d9/21st-Century-Reading-3-Creative-Thinking-and-Reading-with-TED-Talks-by-Eunice-Yeates.pdf
    • http://tanceubio.myhome.cx/43d53d83d83d3/What-s-Your-Story-A-Young-Person-s-Guide-to-Writing-Fiction-by-Marion-Dane-Bauer.pdf
    • http://tanceubio.myhome.cx/43d13d33d73d73d9/Zero-F-cks-Given-The-21st-Century-Man-s-Guide-to-Deep-Self-Confidence-by-Avery-G-Hayden.pdf
    • http://tanceubio.myhome.cx/13d03d13d93d33d13d4/Ideas-That-Matter-A-Personal-Guide-For-The-21st-Century-by-A-C-Grayling.pdf
    • http://tanceubio.myhome.cx/33d23d33d53d93d7/Anthropology-Unbound-A-Field-Guide-to-the-21st-Century-by-E-Paul-Durrenberger.pdf
    • http://tanceubio.myhome.cx/23d83d33d53d53d5/Writing-Essays-about-Literature-A-Guide-and-Style-Sheet-by-Kelley-Griffith.pdf
    • http://tanceubio.myhome.cx/53d03d33d93d73d3/Learning-to-Learn-A-Guide-to-Becoming-Information-Literate-in-the-21st-Century-by-Ann-Marlow-Riedling.pdf
    • http://tanceubio.myhome.cx/73d33d83d2/Enlightenment-Now-The-Case-for-Reason-Science-Humanism-and-Progress-by-Steven-Pinker.pdf
    • http://tanceubio.myhome.cx/43d33d33d23d33d5/Enlightenment-Now-The-Case-for-Reason-Science-Humanism-and-Progress-by-Steven-Pinker.pdf
    • http://tanceubio.myhome.cx/23d33d43d93d9/The-Blank-Slate-The-Modern-Denial-of-Human-Nature-by-Steven-Pinker.pdf
    • http://tanceubio.myhome.cx/93d93d63d93d43d8/Writing-Sense-Integrated-Reading-and-Writing-Lessons-for-English-Language-Learners-K-8-by-Juli-Kendall.pdf
    • http://tanceubio.myhome.cx/53d33d13d53d93d4/Writing-with-Style-Conversations-on-the-Art-of-Writing-by-John-R-Trimble.pdf
    • http://tanceubio.myhome.cx/93d83d63d03d73d4/The-Political-Mind-Why-You-Can-t-Understand-21st-Century-American-Politics-with-an-18th-Century-Brain-by-George-Lakoff.pdf
    • http://tanceubio.myhome.cx/13d03d73d43d23d93d1/Old-Assumptions-New-Realities-Ensuring-Economic-Security-for-Working-Families-in-the-21st-Century-Ensuring-Economic-Security-for-Working-Families-in-the-21st-Century-by-Robert-D-Plotnick.pdf
    • http://tanceubio.myhome.cx/23d53d33d53d13d1/Connecting-the-Dots-to-the-Caliphate-A-Primer-for-the-Thinking-Person-by-Shanbreen.pdf
    • http://tanceubio.myhome.cx/23d53d83d93d53d4/The-New-York-Times-Manual-of-Style-and-Usage-Revised-and-Expanded-Edition-The-Official-Style-Guide-Used-by-the-Writers-and-Editors-of-the-World-s-Most-Authoritative-Newspaper-by-Allan-M-Siegal.pdf
    • http://tanceubio.myhome.cx/13d03d13d93d43d13d6/21st-Century-Yokel-by-Tom-Cox.pdf
    • http://tanceubio.myhome.cx/53d03d33d93d73d3/Learning-to-Learn-A-Guide-to-Becoming-Info