Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01af98c29a1e0d6…

MALICIOUS

PDF

62.3 KB Created: 2021-10-26 07:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 916f4a3a08ee83f9fc5429ef79908f78 SHA-1: 8656abe97d2aed5bd86f5345ec6b11629b2ed616 SHA-256: c01af98c29a1e0d63432b5e8262e86d42211e553a67e1bc9f6e9a41e5d0012cf
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users to malicious or deceptive content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8029

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://www.esicm-old.org/admin/lib/ckfinder/userfiles/files/42844274192.pdf In PDF document text
    • http://maytinhtuyenquang.com/home/maytinhtuy/domains/maytinhtuyenquang.com/public_html/images/file/foniboz.pdfIn PDF document text
    • http://yoshitomo-kokubunji.com/jcfiles/file/vuxopodusot.pdfIn PDF document text
    • http://sicilyontable.it/userfiles/files/fufupokuvuxorezupogale.pdfIn PDF document text
    • http://herbwaterthailand.com/userfiles/files/95200800977.pdfIn PDF document text
    • https://maytuixachanquynh.kimtuong.vn/isc/public/files/fckupload/file/45395384148.pdfIn PDF document text
    • http://asiavent.com/UserFiles/file///19217724970.pdfIn PDF document text
    • https://oasis-travel.ro/files/39825768005.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/74384472772.pdfIn PDF document text
    • https://unitytradecapital.com/ckfinder/userfiles/files/juwetuxita.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150486a14e0f---medukujewunago.pdfIn PDF document text
    • https://ibericadearmerias.com/file/45960554798.pdfIn PDF document text
    • http://szm.hu/userfiles/file/50103817773.pdfIn PDF document text
    • http://dc-8aaac82755d3.breakthroughwell.com/userfiles/files/wagupurafez.pdfIn PDF document text
    • http://st-ark.it/userfiles/files/25653460382.pdfIn PDF document text
    • https://magnettoptan.com/upload/ckfinder/files/kipavanelax.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/p7qfv98cc526rbcnebcj2lf394/2189598549.pdfIn PDF document text
    • https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/92431932721.pdfIn PDF document text
    • http://vietlinktour.com/userfiles/file/zokigudutewogofanepevu.pdfIn PDF document text
    • https://vietcuongcorp.com/uploads/news/files/56916916247.pdfIn PDF document text
    • http://speedwayinfo.hu/uploads/file/wuzasamo.pdfIn PDF document text
    • https://12shio4.com/contents/files/vizetoguxobiligiw.pdfIn PDF document text
    • https://firsatpin.com/calisma2/files/uploads/falavavuf.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16163a1133f8a9---56392993994.pdfIn PDF document text
    • https://amigo-shop.105h.net/upload/files/sogawaxav.pdfIn PDF document text
    • http://advocaatindex.nl/images/uploads/wikegavapiv.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/u-9XGpgKpwY/uplcv?utm_term=man+with+xxy+chromosomesPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.