Malicious PDF — malware analysis report

Static analysis result for SHA-256 f002dae0f0664cd6…

MALICIOUS

PDF

39.6 KB Created: 2021-09-05 14:48:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: a5278d6af133c368e3e2520f74c74589 SHA-1: a75e3464a01f9da405ecad60e9c88d4cfb46b907 SHA-256: f002dae0f0664cd632ea5feb6338a6bc1e2c39d4d6026114472d0d68b8722f84
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and is structured as an image-only lure, typical of phishing campaigns. It includes numerous links, many pointing to compromised websites or disposable hosting, designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9701

Heuristics 7

  • 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 39 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 http://dsraxys.com/uploads/kowisikerufafej.pdf In PDF document text
    • https://pet-fashion.ro/mm/file/87762700264.pdfIn PDF document text
    • https://siam-royal-view.ru/data/files/9837416349.pdfIn PDF document text
    • http://wskinbody.com/data/boardData/files/72132053161.pdfIn PDF document text
    • http://sieuthihatgiong.vn/webroot/img/files/goxonudaguwubizozuxa.pdfIn PDF document text
    • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc34fb77e1---76357485711.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161043619d6377---53126208483.pdfIn PDF document text
    • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/acede173e8e66994ca40c8300eec816a/pajarerikebolutevixa.pdfIn PDF document text
    • https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608192309a646---tokokafaxupakoz.pdfIn PDF document text
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/2647017d14d9911c4a1d4ddbe58b7f40/bubulolofofubewa.pdfIn PDF document text
    • http://bienbao.net/uploads/files/94590894833.pdfIn PDF document text
    • http://stcforanebanglore.smcim.com/www/js/ckfinder/userfiles/files/bavagonororisuranebateg.pdfIn PDF document text
    • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/dddbd7cbbbc95f12eba5d98e582fefd8/wokavo.pdfIn PDF document text
    • http://creativeindustries.ru/uploads/userfiles/file/kojutelurekonivutififosab.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160851dc82cfb7---12948875030.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ca0d564e4---46168221359.pdfIn PDF document text
    • http://mp-journal.com/media/file/vusepiredawute.pdfIn PDF document text
    • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160946d1129af3---29710880056.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=texte+marseillaise+pdfPDF link annotation

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