Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b4bf24e06fd9a7d…

MALICIOUS

PDF

63.7 KB Created: 2021-07-31 14:01:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: a3960593a2bf2422dd078e68af04e7c0 SHA-1: 5e875f26a6298037958e5be9212c93f0da142811 SHA-256: 2b4bf24e06fd9a7d5996898bd196cbb5d4c31170e50f5ebd550fac82a038696e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised websites, indicating a phishing or malicious redirection attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it is designed to lure users to malicious content, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5433

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://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/55t55m322mmfo8ptt2cplrvi9k/dizipixebixijusilupijepab.pdf In PDF document text
    • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5de5c733c7---55895446654.pdfIn PDF document text
    • http://alphasigmaoverseas.com/userfiles/file/64667887623.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbee81a28b---bovozaju.pdfIn PDF document text
    • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/848c0b27d76bb64029581089b02f7b64/mepupazudexisixo.pdfIn PDF document text
    • http://ithalattagarantibelgesi.com/resimlerfiles/1833546550.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/6d10a4b1e4b7114ba8d596af8d5db8b1/zakupinegawuridiziwodu.pdfIn PDF document text
    • http://status-go.net/gfx/userfiles/files/sewuzafaxaki.pdfIn PDF document text
    • http://sadiqandsons.com/userfiles/files/7550149338.pdfIn PDF document text
    • http://op-gold.com/ck_image//files/5121216838.pdfIn PDF document text
    • http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/juribozexali.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16076ec854cbba---lemebunosimuwedig.pdfIn PDF document text
    • https://forumhrdbekasi.com/webroot/userfiles/files/vesumi.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f81c69e9bb---vokelanuvifupisojubibadiz.pdfIn PDF document text
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1607568f547bb5---61186942156.pdfIn PDF document text
    • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/0e91ad980146f0f536dfd2dd898268c2/27785899854.pdfIn PDF document text
    • http://oodow.cn/upload/file/210624105540001522azlgtk9yxf47.pdfIn PDF document text
    • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/25299v6dee5fm9ik6tluh2cg57/27147416288.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609989bccd13f---dekiwuziko.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c9236b5f6a1---rapiworaxet.pdfIn PDF document text
    • http://quick-thailand.com/images/uploads/file/dipepifiwega.pdfIn PDF document text
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a18519b01fe---22197305169.pdfIn PDF document text
    • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160f141d6bab9d---gikunusu.pdfIn PDF document text
    • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb8f4cb1361---28450365081.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d542e1a191a---dafabudibage.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=biddeford+school+department+teacher+contractPDF link annotation

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