Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c387f482bb2cbc…

MALICIOUS

PDF

72.0 KB Created: 2021-07-31 09:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 1f9d8a1de15b4c3159cd58e0f095000f SHA-1: 9f1cf344dd83fef0f19caa14ee71e92c04a917b2 SHA-256: 14c387f482bb2cbcc0d4bb5ec59543b64bb137014f7b14311fb2c146c518ae5c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The ML classifier also flagged it with a high probability.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6703

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://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/99d3b8c2c2a75e77bd15a5416086a7b6/gepeg.pdf In PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be8e9c7ebc3---makewepimuxugexiwemowonok.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c94a4aa495---66472978427.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/21360809887.pdfIn PDF document text
    • http://abwmarlboropike.com/uploads/files/fafopifajemegilinaxaxor.pdfIn PDF document text
    • https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/bl9jrj0e4oj7pfi8ak59n4klh4/nujosesuzavusi.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1b38637b8---57651645992.pdfIn PDF document text
    • http://mmprogetti.it/userfiles/files/77311022453.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160916614858b6---sawifovakekabupuzi.pdfIn PDF document text
    • https://cakkue.com/contents//files/96985427888.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608971057551b---ruwopivuj.pdfIn PDF document text
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/4b2032bf396616327edaf24dde1c0cb5/40633407959.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdfb2a48e12---momawilu.pdfIn PDF document text
    • http://logansport1971.com/clients/4/42/424235dfd0fdcd2d3cc2afd1e16bb83e/File/jimuzopu.pdfIn PDF document text
    • http://trendybiz.in/usersfiles/file/wolavekem.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160915a6165c4a---47520940083.pdfIn PDF document text
    • http://koreaseals.com/ckfinder/userfiles/files/muxunusamaxero.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9fb30559f---65648679416.pdfIn PDF document text
    • https://ahha.az/userfiles/file/94363797662.pdfIn PDF document text
    • http://csc0451.com/userfiles/file/20210625003646_i3v9vn.pdfIn PDF document text
    • http://matstravel.ru/userfiles/file/4857825152.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b04993c711b---pizoxebe.pdfIn PDF document text
    • https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/59152028337.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/8e748442e8074ce858181dbcaec1f553/gerozoferidefaletewaga.pdfIn PDF document text
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160da1a85f17f6---8741246310.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/2762953507.pdfIn PDF document text
    • https://moscowfashion.net/content/xuploadimages/file/41288619652.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=hands-on+recommendation+systems+with+python+rounak+banik+pdfPDF link annotation

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