Malicious PDF — malware analysis report

Static analysis result for SHA-256 2504c405033b30e1…

MALICIOUS

PDF

20.0 KB Created: 2020-03-14 00:25:22 +00:00 Authoring application: mPDF 5.7
MD5: aa0c0b559a683d052525e082b83e6cd0 SHA-1: 891ee89b9c435d0fd645ace8837b9dcc4ccc125e SHA-256: 2504c405033b30e195dc1c2d6cf270b2da5dfcedd77fe42f47983ba9de598400
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which are likely intended to redirect users to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted from this sample, but the structure and embedded links suggest a lure for downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://tikytsesapdf.myhome.cx/778c078c978c678c278c5/The-Sound-and-the-Fury-As-I-Lay-Dying-Sanctuary-Intruder-in-the-Dust-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/778c078c978c678c178c8/William-Faulkner-The-Sound-and-the-Fury-and-as-I-Lay-Dying-Essays-Articles-Reviews-by-Nicolas-Tredell.pdf
    • http://tikytsesapdf.myhome.cx/978c378c878c778c778c1/The-Functioning-Of-Sentence-Structure-In-The-Stream-Of-Consciousness-Technique-Of-William-Faulkner-s-quot-The-Sound-And-The-Fury-quot-A-Study-In-Linguistics-Stylistics-by-Irena-Kaluza.pdf
    • http://tikytsesapdf.myhome.cx/778c678c078c878c478c9/Collected-Stories-of-William-Faulkner---Complete-Edition-Forty-Two-Stories-Enriched-by-Author-s-Banquet-Speech-for-His-Nobel-Prize-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/378c378c178c878c478c2/The-Portable-Faulkner-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/178c178c078c778c978c178c8/The-Sound-of-Fury-The-Cabal-3-by-Ian-MacGregger.pdf
    • http://tikytsesapdf.myhome.cx/978c678c378c178c478c8/Cursor-s-Fury-Captain-s-Fury-Princeps-Fury-Codex-Alera-3-5---3-Books-Collection-Set-by-Jim-Butcher.pdf
    • http://tikytsesapdf.myhome.cx/178c378c778c178c278c7/The-Town-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/478c078c178c578c578c2/Sartoris-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/478c378c278c478c978c5/Soldiers-Pay-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/178c678c178c278c6/The-Mansion-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/378c278c378c978c9/As-I-Lay-Dying-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/478c578c678c978c178c5/Mosquitoes-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/178c078c078c278c478c578c4/Dry-September-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/378c378c078c578c778c1/Intruder-in-the-dust-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/178c078c378c378c178c878c8/The-Wild-Palms-The-Old-Man-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/678c978c278c678c378c3/New-Orleans-Sketches-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/678c778c678c578c0/The-Wild-Palms-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/478c178c178c978c0/A-Rose-for-Emily-and-Other-Stories-by-William-Faulkner.pdf
    • http://tikytsesapdf.myhome.cx/778c078c978c778c478c5/As-I-Lay-Dying-A-Reader-s-Guide-to-the-William-Faulkner-Novel-by-Robert-Crayola.pdf
    • http://tikytsesapdf.myhome.cx/778c678c078c878

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