Malicious PDF — malware analysis report

Static analysis result for SHA-256 19e2d3faa1b48f2a…

MALICIOUS

PDF

51.3 KB Created: 2021-05-21 02:06:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de3ffb98f4a7760c542425ca0e8b4f29 SHA-1: f5977096df6ccf8b0a671a7d72fd3e2cb01e4aff SHA-256: 19e2d3faa1b48f2ab43283b8c947fb695a763ec9e714b075ea7bd9d25a439cee
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded URLs that point to compromised WordPress sites, acting as a link farm. These links likely lead to phishing pages or further malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9303

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
  • 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://philabc.ru/uplcv?utm_term=bmw+540i+manual+craigslist
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/9b2vpncce824a3mo2ek4tlaq41/tepimimoxokapujaboga.pdf
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072dec776de0---wolufagegurasutufexeta.pdf
    • https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/fcffd99939993e640e203b1e912f5693/gigufoz.pdf
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16089e7b8c38a0---97934002921.pdf
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/d7f18882dc64ad7ac2bb68ece470733b/10136442.pdf
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/315548f634ca77cf11c68f66fa37e7d5/60460829357.pdf
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/6s1bacsisfc84hj56gml89sfmh/ruwugemevawuj.pdf
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081d0bb5df49---wozetomew.pdf
    • https://acryl-bg.com/userfiles/file/podid.pdf
    • http://hk-dcc.com/wp-content/plugins/super-forms/uploads/php/files/g2lh1l2tr421nunc3p19pk8vno/motixoviwa.pdf
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160706abb26d74---12782390866.pdf
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16090c5bf82c61---xenagotakisufa.pdf
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160963079458dc---rixotexemadizaveser.pdf
    • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a06b1cd9daf---73542316693.pdf
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/mrv0m4qft3roihgeb0kd7et7h6/gifofe.pdf
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160944d6c8e22c---49266830776.pdf
    • https://areicon.com/images/file/46325363491.pdf
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0c81887c7---bovurerufuwasox.pdf

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