Malicious PDF — malware analysis report

Static analysis result for SHA-256 9574b9a42ad5464b…

MALICIOUS

PDF

43.6 KB Created: 2020-03-11 07:38:23 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c02d49f8bb206ce319fd87726eddd6ee SHA-1: 48828e27a428842ba92c1c8ca13c9ca36602dbf6 SHA-256: 9574b9a42ad5464b12837c16717c568f40a8b4f6527003889b1dcf76704a20b8
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are SEO-optimized and point to other PDF files. This suggests a link farm designed to direct users to potentially malicious content. The presence of the URL 'http://bigbtravel.com/uploads/1/3/0/6/130621436/130621436.html#banker%27s+algorithm+in+os+ppt' further indicates a lure to a specific topic, likely to trick users into clicking through to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bigbtravel.com/uploads/1/3/0/6/130621436/130621436.html#banker%27s+algorithm+in+os+ppt
    • http://rockyrunafterschool.com/uploads/1/3/0/2/130291596/bfe43b49d8d2cb.pdf
    • http://escmeribel.org/uploads/1/3/0/7/130739459/jafimuvabok.pdf
    • http://njfmanwithvan.co.uk/uploads/1/3/0/3/130379061/boserowu-jakuven-kusuri.pdf
    • http://www.8ballatc.com/uploads/1/3/0/9/130969897/petirota-vupiv-lisuzodesaza-suwutoxajiwup.pdf
    • http://amkarts.com/uploads/1/3/0/8/130814021/4555118.pdf
    • http://backstagewithgod.com/uploads/1/3/0/8/130873820/gurelesujiposid.pdf
    • http://scottdawson.info/uploads/1/3/0/7/130776755/54424d.pdf
    • http://learningent.org/uploads/1/3/0/6/130603744/vabezu.pdf
    • http://projectcuremanga.com/uploads/1/3/0/8/130814007/xinurek.pdf
    • http://threeoakwinery.com/uploads/1/3/0/7/130738945/4101915.pdf
    • http://www.allweeverwanted.co.uk/uploads/1/3/0/7/130776385/voruvefizowexowokuk.pdf
    • http://thestud.club/uploads/1/3/0/5/130588822/6515512.pdf
    • http://modernman.systems/uploads/1/3/0/2/130287242/5790886.pdf
    • http://banriapharma.com/uploads/1/3/0/5/130546136/tobesekoru.pdf
    • http://gregwcraft.com/uploads/1/3/0/5/130589384/f0212edb165f9af.pdf
    • http://ciarawiegers.com/uploads/1/3/0/2/130287229/1208655.pdf
    • http://remote30.inwoodinc.com/uploads/1/3/0/7/130776103/5348759.pdf
    • http://mackprobuilding.com/uploads/1/3/0/3/130313557/a50e38e278f97de.pdf
    • http://mmtaxandfinancial.com/uploads/1/3/0/7/130776343/800057.pdf
    • http://affarievents.com/uploads/1/3/0/5/130590163/zeronitukiwewis.pdf
    • http://www.gewuconsulting.com/uploads/1/3/1/0/131070845/wetowakowiwutudeda.pdf
    • http://atypical.film/uploads/1/3/0/4/130483507/228a54c60e6f.pdf
    • http://www.nordicwarriortraining.com/uploads/1/3/0/4/130489253/miwufaposowiduja.pdf
    • http://mylashpaige.com/uploads/1/3/0/9/130969061/pajerirogadujobizud.pdf
    • http://www.mikewilbanks.com/uploads/1/3/0/6/130620681/nediben-lifojabotiden-sokizubawokarep.pdf
    • http://www.mikewilbanks.com/uploads/1/3/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f9c.bin
ab941da60b5c66850000bfd70c0ef23159e0dfffce9d8266489a7a1e150106f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9C 8488 bytes