Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e935994b0b789aa…

MALICIOUS

PDF

62.3 KB Created: 2021-10-10 12:16:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 919d3ca85b601b817bc7a3f43bd1e20b SHA-1: db29ef17976153905cf9f9cece508f6d6b4d938c SHA-256: 2e935994b0b789aa35e896080db3ca5c8ba8a876e4e18a0b4d1a4a644a9194df
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. ClamAV detected this file as Pdf.Phishing.Trojan, further supporting its malicious nature. The embedded JavaScript likely facilitates the redirection or exploitation process.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5895

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/sosuxelimegazodinopux.pdf In PDF document text
    • https://fsreloading.com/userfiles/files/viwotagap.pdfIn PDF document text
    • https://sportyou.fr/ckfinder/userfiles/files/tumafoja.pdfIn PDF document text
    • http://nhatngungoisaoxanh.com/upload/files/19158177523.pdfIn PDF document text
    • http://xn--80aaaaadfwa5aftjhxrkcrg8iwc.xn--p1ai/pict/file/95139657860.pdfIn PDF document text
    • http://jeykrishnaclub.com/images/file/9989083938.pdfIn PDF document text
    • https://ibliberia.com/ckfinder/userfiles/files/61961626114.pdfIn PDF document text
    • http://geosond.pl/userfiles/file/85799420331.pdfIn PDF document text
    • http://thanhnhomdinhhinh.net/uploads/files/65692958810.pdfIn PDF document text
    • http://novena99.com/uploads/files/202109122216487653.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/5k951820sk771pnjk1bbtf6to4/23500784200.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16157000616abd---96801025513.pdfIn PDF document text
    • http://timeyear-v.com/userfiles/file/fetunikiwopisijinolute.pdfIn PDF document text
    • https://vibangnhadat.com/uploads/files/84587287696.pdfIn PDF document text
    • http://jlicentral.com/images/authors/file/sotinux.pdfIn PDF document text
    • http://dansungsala.com/uploads/files/19363438419.pdfIn PDF document text
    • http://keystoparadise.com/userfiles/files/4901540360.pdfIn PDF document text
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a8955b15c2---77225724189.pdfIn PDF document text
    • http://aexpress.lv/index/images/up/file/nopobunujaxolonebudevet.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/57b520b6e0c65d0f27888368146d21c5/luforadakud.pdfIn PDF document text
    • https://namphuctourist.com/userfiles/file/tojuwovarorabuvowivaju.pdfIn PDF document text
    • http://jnnycc.org/userfiles/file/watekubitufutagaveraw.pdfIn PDF document text
    • http://studiozoppini.com/userfiles/files/39060091249.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=good+for+bee+stingsPDF link annotation

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