Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2510e75d70ce174…

MALICIOUS

PDF

48.0 KB Created: 2021-09-18 16:35:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 372177091d794c27a5b39e1e5791faee SHA-1: 9809b008066cdb478bfb5b346bf0f43797a08029 SHA-256: e2510e75d70ce174e52e075c0165aff3a418b111539c7489dcbe4035e71516f9
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable domains and are structured as a link farm, indicating a likely attempt to redirect users to malicious sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, suggesting the document is designed to obscure the true destination of the links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8005

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://hockjoohin.com/admin/uploads/file/gobalafogagutamejenuw.pdf In PDF document text
    • https://panelshock.com/userfiles/file/rurigegomugifomozagu.pdfIn PDF document text
    • https://mogilew.ru/userfiles/file/25233620686.pdfIn PDF document text
    • https://stalbeckers.nl/userfiles/image/file/58280210170.pdfIn PDF document text
    • https://memo-log.com/userfiles/file/veteded.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/60974462416.pdfIn PDF document text
    • http://cl-metalparts.com/d/files/59704160891.pdfIn PDF document text
    • http://hermandadperdon.es/userfiles/file/fobufowebobizovime.pdfIn PDF document text
    • http://lnv-cnc.com/userfiles/file/47754617604.pdfIn PDF document text
    • https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/kifaruvew.pdfIn PDF document text
    • http://inprovitchile.com/ckfinder/userfiles/files/jovepesinumad.pdfIn PDF document text
    • https://olgunbey.com/upload/ckfinder/files/60166258362.pdfIn PDF document text
    • https://vitanov.rs/files/fofefolokubisemena.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/8h9mm39s3nr0ipbk4nsr6i8a7t/96192650084.pdfIn PDF document text
    • http://wgadget.com/file_media/file_image/file/dupevasemafesevita.pdfIn PDF document text
    • http://szilasfood.hu/pic_upload/files/47178594480.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16132c8c4205df---xexajapofe.pdfIn PDF document text
    • http://theponghop.com/upload/files/53675330743.pdfIn PDF document text
    • http://teplo76.ru/uploads/file/99302268332.pdfIn PDF document text
    • https://xn--72ca1bzcdf9cg5df4n5a8cei.com/userfiles/files/jixojobolip.pdfIn PDF document text
    • http://noithatdangcap.vn/app/webroot/uploads/files/40187044042.pdfIn PDF document text
    • https://sankaibearing.com/userfiles/files/78403489101.pdfIn PDF document text
    • http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/pogilejogineranutarifad.pdfIn PDF document text
    • http://pantryscan.com/123cars/imagefck/file/xuzapa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=samsung+to+iphone+bluetooth+transferPDF link annotation