Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aff3a07b51d5b25…

MALICIOUS

PDF

17.6 KB Created: 2020-02-14 22:36:40 +00:00 Authoring application: mPDF 5.7
MD5: 8326dbb691cab0255ab9bc4d89f03414 SHA-1: 7f11f299865e97e62f1600ed7cdafa3eeb577a74 SHA-256: 6aff3a07b51d5b256a7498a9d8a1361dbc98ff881e43f0dd0caa45305a4e9aad
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious. The embedded URLs are likely intended to redirect users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/7868865867868/Elementary-Structures-of-Kinship-by-Claude-L-vi-Strauss.pdf
    • http://calistazz.myhome.cx/5865865863869867/The-Genius-of-Kinship-The-Phenomenon-of-Kinship-and-the-Global-Diversity-of-Kinship-Terminologies-by-G-Dzibel.pdf
    • http://calistazz.myhome.cx/6867869865864865/Structural-Anthropology-by-Claude-L-vi-Strauss.pdf
    • http://calistazz.myhome.cx/8860863867862/The-Savage-Mind-by-Claude-L-vi-Strauss.pdf
    • http://calistazz.myhome.cx/1860867869869862/Claude-Levi-Strauss-The-Poet-in-the-Laboratory-by-Patrick-Wilcken.pdf
    • http://calistazz.myhome.cx/1866865862867865/The-Origin-of-Table-Manners-Mythologiques-Volume-3-by-Claude-L-vi-Strauss.pdf
    • http://calistazz.myhome.cx/1860860866862863866/L-vi-Strauss-versus-Freud---Eine-Gegen-berstellung-des-Kapitels-VII-Die-archaische-Illusion-bei-L-vi-Strauss-mit-Siegmund-Freuds-Totem-und-Tabu-by-Marijke-Lichte.pdf
    • http://calistazz.myhome.cx/7866860862860868/Structures-1-11-Structures-1-by-Tom-Kaczynski.pdf
    • http://calistazz.myhome.cx/1861863860863864868/Elementary-Modern-Standard-Arabic-1-Elementary-Modern-Standard-Arabic-Lessons-1-30-by-Peter-F-Abboud.pdf
    • http://calistazz.myhome.cx/1862861861867860/The-House-that-Vivian-Built-By-Jean-Claude-Dehmel-II-by-Jean-Claude-Dehmel-II.pdf
    • http://calistazz.myhome.cx/1861861860863867865/Kinship-and-Casework-by-LEICHTER.pdf
    • http://calistazz.myhome.cx/5865865861869862/Kinship-by-Trudy-Krisher.pdf
    • http://calistazz.myhome.cx/2862864863860864/Elementary-Erotica-by-J-Blackmore.pdf
    • http://calistazz.myhome.cx/5865865861869864/A-Dream-of-Kinship-by-Richard-Cowper.pdf
    • http://calistazz.myhome.cx/5865865861868868/Kinship-of-Clover-by-Ellen-Meeropol.pdf
    • http://calistazz.myhome.cx/8868865869866862/Kinship-Patterns-by-Terrance-Oberst.pdf
    • http://calistazz.myhome.cx/5865865864865866/Universal-Kinship-by-J-Howard-Moore.pdf
    • http://calistazz.myhome.cx/5865865863861864/Kinship-with-Animals-by-Kate-Solisti.pdf
    • http://calistazz.myhome.cx/5865865864860865/Christianizing-Kinship-by-Joseph-H-Lynch.pdf
    • http://calistazz.myhome.cx/5865865861869867/Kinship-Sought-by-the-Alphas-4-by-Carina-Wilder.pdf

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