Malicious PDF — malware analysis report

Static analysis result for SHA-256 21fd349f5b3b0206…

MALICIOUS

PDF

13.9 KB Created: 2020-03-18 22:25:14 +00:00 Authoring application: mPDF 5.7
MD5: f40d42dd2480ffb07598e2adec4fec3b SHA-1: c76a83b5de3c91774707b47d52c236b2f3b397f2 SHA-256: 21fd349f5b3b02068ca36fb5ce09ee1a8fd39a3e372ab92af036a044aa46a705
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, forming a link farm. The heuristic PDF_SEO_LINK_FARM indicates a mass of external PDF links, and the ML classifier also flagged the document as malicious. The primary purpose appears to be directing users to external content, likely for SEO manipulation or to host malicious payloads disguised as legitimate documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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://easckaolp.myhome.cx/1840847842848849/Kindred-The-Kindred-1-by-Erica-Stevens.pdf
    • http://easckaolp.myhome.cx/1845845849847846/Ashes-The-Kindred-2-by-Erica-Stevens.pdf
    • http://easckaolp.myhome.cx/1845845849845849/Phoenix-Rising-The-Kindred-5-by-Erica-Stevens.pdf
    • http://easckaolp.myhome.cx/4843844840843848/Bridging-the-Distance-Brides-of-the-Kindred-21-6-Kindred-Tales-7-by-Evangeline-Anderson.pdf
    • http://easckaolp.myhome.cx/2848841845843848/Kindred-by-Tammar-Stein.pdf
    • http://easckaolp.myhome.cx/2841849840843846/Kindred-by-John-Gideon.pdf
    • http://easckaolp.myhome.cx/6845842849848/Kindred-by-Octavia-E-Butler.pdf
    • http://easckaolp.myhome.cx/2845848843840842/The-Kindred-by-Rachel-James.pdf
    • http://easckaolp.myhome.cx/2845849846/Kindred-Spirits-by-Rainbow-Rowell.pdf
    • http://easckaolp.myhome.cx/2847845842848/A-Few-Kindred-Spirits-by-John-Christopher.pdf
    • http://easckaolp.myhome.cx/7847848848845845/Cyrus-Kindred-1-by-Frey-Ortega.pdf
    • http://easckaolp.myhome.cx/8842842847842846/Kindred-Love-by-Vagner-Albino.pdf
    • http://easckaolp.myhome.cx/2840847849843841/The-View-From-Here-Kindred-4-5-by-Nicola-Claire.pdf
    • http://easckaolp.myhome.cx/1848849846840846/Forbidden-Drink-Kindred-3-by-Nicola-Claire.pdf
    • http://easckaolp.myhome.cx/3840841842848846/Claimed-Brides-of-the-Kindred-1-by-Evangeline-Anderson.pdf
    • http://easckaolp.myhome.cx/2846842847844849/Cursed-Brides-of-the-Kindred-13-by-Evangeline-Anderson.pdf
    • http://easckaolp.myhome.cx/2846842847843849/Chained-Brides-of-the-Kindred-9-by-Evangeline-Anderson.pdf
    • http://easckaolp.myhome.cx/1848849846840842/Entwined-with-the-Dark-Kindred-7-by-Nicola-Claire.pdf
    • http://easckaolp.myhome.cx/1842846844847841/The-Kindred-Curse-Anthology-by-Terra-Harmony.pdf
    • http://easckaolp.myhome.cx/1848849845849847/Kiss-of-the-Dragon-Kindred-8-by-Nicola-Claire.pdf
    • http://easckaolp.myhome.cx/3840841842848846/Claimed-Brides-o

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