Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ee3dea0488d57d…

MALICIOUS

PDF

40.0 KB Created: 2021-09-16 23:32:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 7390c75395eb58a4be79a4896604d478 SHA-1: 1adb132713c1955447855920074f4c4a1e28b92c SHA-256: c2ee3dea0488d57d06e2d2f8db61dacc029d5fda6c7314b246ba0a333fe433d7
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size, image-only content, and embedded clickable actions. It functions as a link farm, directing users to numerous external PDF files hosted on various domains. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to facilitate further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9455

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://meskerjager.nl/media/files/85260835027.pdf In PDF document text
    • http://bxbrdh.marketsearching.com/upload/files/16836054192.pdfIn PDF document text
    • http://15441707.com/data/board/file/20210916002136.pdfIn PDF document text
    • http://aunay-sous-auneau.fr/ckfinder/userfiles/files/92754885666.pdfIn PDF document text
    • https://damsindia.org/admin/uploads/file/wuzulavevux.pdfIn PDF document text
    • https://powermailer.in/userfiles/file/60435619467.pdfIn PDF document text
    • https://stopserv.ru/files/file/mawagirase.pdfIn PDF document text
    • http://ainut.fi/userfiles/file/69124171405.pdfIn PDF document text
    • https://jajugroup.com/ckfinder/userfiles/files/56588058056.pdfIn PDF document text
    • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/vuxiwigeferebegimitog.pdfIn PDF document text
    • http://likuidart.com/files/ckeditor/files/wurajeruvarixopituvivutun.pdfIn PDF document text
    • http://demenagements-remond.fr/userfiles/file/20210906134711.pdfIn PDF document text
    • https://goez3.com/10005001208290177/ckfinder/userfiles/files/14823326185.pdfIn PDF document text
    • http://lnv-cnc.com/userfiles/file/nigurisigegewozamadagozok.pdfIn PDF document text
    • http://kelvista.lt/images/files/18090830743.pdfIn PDF document text
    • https://dreptultau.hotnews.md/upload/userfiles/files/mejezagesod.pdfIn PDF document text
    • https://nslogisticservice.com/userfiles/files/12630797779.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/2c77c6dcc7bc6ad08c6f369ba576a36f/60104412527.pdfIn PDF document text
    • http://sanitaerprofi.ch/fckeditor/editor/images/file/42281755887.pdfIn PDF document text
    • https://sunarchegypt.com/userfiles/file/76641250018.pdfIn PDF document text
    • http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/filIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=hello+neighbor+demo+apkPDF link annotation