Malicious PDF — malware analysis report

Static analysis result for SHA-256 e54022752d5763e9…

MALICIOUS

PDF

58.1 KB Created: 2021-09-03 04:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 057678014f613dee81995f47b0f1f76c SHA-1: e685f683d3fed403e8a367c7902afbcac1f93d47 SHA-256: e54022752d5763e9e2aa1863e85518440c6d54d0debc957fe4461d61603f0200
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. This structure suggests the document is designed as a link farm to distribute malicious content or conduct phishing. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab15da265ae---80707792154.pdf In PDF document text
    • https://agrilaui.com/userfiles/file/xakejixewalebugovumokazob.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd975c2b2c4---47651890776.pdfIn PDF document text
    • http://frangarcia.eu/upload/file/4102500419.pdfIn PDF document text
    • https://menu2uplus.com/images/file/58633321650.pdfIn PDF document text
    • http://cn-noah.com/uploadfile/file/28385215436.pdfIn PDF document text
    • http://gopherandsquirrelcontrol.com/admin/images/file/wasemavunebum.pdfIn PDF document text
    • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/rahbcdhdm1b5rju16uer17lc03/15727141054.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/jeberekajageriv.pdfIn PDF document text
    • http://montaze.org/democms/userfiles/file/59344195334.pdfIn PDF document text
    • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/3d4c1fcaaf8325c26c7a30d5830ff452/72204972142.pdfIn PDF document text
    • http://sahrugs.com/userfiles/file/zagimopitisa.pdfIn PDF document text
    • https://gastrotest.co/ckfinder/userfiles/files/subafevimozaguluteb.pdfIn PDF document text
    • http://angelsolutions.ro/ckeditor/ckfinder/userfiles/files/vupowetozujuvujiso.pdfIn PDF document text
    • http://caopump.com/admin/userfiles/file/bizamaxinuxajovibunifegu.pdfIn PDF document text
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/l0og90m9komha74lmbvso37vmh/80297687806.pdfIn PDF document text
    • http://kartelabasligi.com/images_upload/files/xugisowepagovomat.pdfIn PDF document text
    • http://polloricowings.com/uploads/files/bagutumigavudapano.pdfIn PDF document text
    • https://cairparavel.ro/app/webroot/files/userfiles/files/96583339651.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f4b5502ae---15077481794.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d06ea39a77---18156339136.pdfIn PDF document text
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/720a9d8c2efe138272a520a7bc98eabf/metijupeniwavuvizoxov.pdfIn PDF document text
    • http://www.klimavill.com//data/editorfile/xavazevaboxupurabubip.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=los+estilos+de+vida+pdfPDF link annotation
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/1bd97e0770b34ed8a47d195b7fa529ed/78339461210.pdfIn PDF document text

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