Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bfe4e1e85dcf0fd…

MALICIOUS

PDF

19.3 KB Created: 2020-03-22 01:57:12 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3562fd27a45492c0696b45c72c628c3c SHA-1: 13b81991dbb5bc708c7bf01091eee790518bc2b9 SHA-256: 6bfe4e1e85dcf0fd47eed7ced9709f9e27cb2d8e42d25d01bb353ef2a2e6ebb9
114 Risk Score

Malware Insights

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

The PDF file is identified as malicious due to its structure, which mimics a screenshot to trick users into clicking embedded links. It contains a large number of external links, suggesting a link farm or SEO spam operation designed to redirect users to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 19 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://oddbutterflies.com/uploads/1/3/0/7/130774982/130774982.html#metodos+de+dise%C3%B1o+nigel+cross+descargar+pdf
    • http://yorktownplumbingandheating.com/uploads/1/3/0/2/130271139/pasutesokaxobiwaxa.pdf
    • http://www.crisptosc.com/uploads/1/3/0/3/130324044/3802812.pdf
    • http://drshriver.com/uploads/1/3/0/8/130874601/2a116.pdf
    • http://axedideelyingent.space/uploads/1/3/0/3/130323295/9055a3fbf70cce5.pdf
    • http://theheadlandshotel.co.uk/uploads/1/3/0/8/130874492/7699150.pdf
    • http://beardedbeaverco.com/uploads/1/3/0/6/130620679/26ecce3.pdf
    • http://vps01.hms.com.au/uploads/1/3/0/6/130604782/8ca082c3c10bbc.pdf
    • http://www.bubbaluna.co.uk/uploads/1/3/0/2/130289475/tadezaxolabumiv_duwojenij_pokebanepo_tewivakuwu.pdf
    • http://j-aponi.com/uploads/1/3/0/3/130313120/gojotorap.pdf
    • http://beautifulweddings.biz/uploads/1/3/0/9/130969837/8487560.pdf
    • http://highmountianbuilders.com/uploads/1/3/0/8/130814337/samafir-zarebetanuratel-wozarox.pdf
    • http://leaderkast.com/uploads/1/3/0/6/130639166/ruberusiporavunawu.pdf
    • http://clinicgeek.org/uploads/1/3/0/8/130874670/sepubolutegozider.pdf
    • http://ocruz.net/uploads/1/3/0/9/130969824/3297869.pdf
    • http://www.zetrocroofing.com/uploads/1/3/0/4/130476372/3411016.pdf
    • http://newtaiwankonus.com/uploads/1/3/0/5/130588403/tanod.pdf

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