Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e68580fc9380a0…

MALICIOUS

PDF

62.3 KB Created: 2021-07-29 19:04:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: e9c4165070a05e13de84b69d2d70a6a2 SHA-1: e5e705bd52b66f3958925a7a8384af9d2aac7eae SHA-256: 58e68580fc9380a0a06134aecca872103ec0a692ec8bb5d4292da3644cf6a0c8
154 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, while some are marked benign, are part of a larger pattern of directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5895

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://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/64b84382741f00214c20ea292f9ddab0/34980177724.pdf In PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e0d8b0b76---xumilogo.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac8d32c42a4---femiwamowexi.pdfIn PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0466da2637---75081790792.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2139674046---zibojamenexuzatarov.pdfIn PDF document text
    • https://edarky.net/data/file/xorowa.pdfIn PDF document text
    • http://bkm-market.net/userfiles/file/78830664577.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e91428b8af---rixugixedivu.pdfIn PDF document text
    • http://leguido.net/files/nenazugokovoxejiwupag.pdfIn PDF document text
    • https://vasantviharproperties.com/userfiles/file/50759541349.pdfIn PDF document text
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/797beb0b4dfe9b891b5a19bd26948976/weveveponixekazuvumejuwa.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160892a07d0692---revovodezelomiwi.pdfIn PDF document text
    • https://viessmannboilers.ca/fck_upload/file/nusafukisol.pdfIn PDF document text
    • http://lungshingcentre.com/userfiles/75979963492.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/53781531111.pdfIn PDF document text
    • https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/jbj4ic77gsfi219b7vnqfjilcg/55009701009.pdfIn PDF document text
    • https://biomedchita.ru/imeg_master/file/bijel.pdfIn PDF document text
    • https://floridainvestment.cz/files/file/temexewawipag.pdfIn PDF document text
    • http://outspokenholland.com/userfiles/fckFile/20210621094753.pdfIn PDF document text
    • http://medical-1669.com/userfiles/files/2579206638.pdfIn PDF document text
    • http://runo34.ru/attachments/file/noseramizajurobefega.pdfIn PDF document text
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9715f94556a689cfc84959c788329924/70709674595.pdfIn PDF document text
    • https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/49e34b5c38prr995g03qafth73/45728194949.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=what+to+say+to+build+trustPDF link annotation

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