Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e7a4a49838b8216…

MALICIOUS

PDF

54.0 KB Created: 2021-09-03 17:42:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 7716fd9b9c601816a875bbf097165246 SHA-1: d1fabf54737750c0a29b2ce2d2bf28a527c0ee8e SHA-256: 3e7a4a49838b82160b274bf6cf1e08eb0a54ec8b7e5faec836ca4b8de1c7184b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms, indicating a phishing or malicious redirection attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to lure users to malicious sites, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2924

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://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/h6pote1qtrc4a2avd3rc7phbp0/98972022453.pdf In PDF document text
    • http://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/vufagozezexorabotimaxe.pdfIn PDF document text
    • https://ecodiagnost.com/ckfinder/userfiles/files/69283840958.pdfIn PDF document text
    • https://nisahanpin.com/calisma2/files/uploads/begorura.pdfIn PDF document text
    • http://lagunarent.lt/ckfinder/userfiles/files/remedulomuwepetijet.pdfIn PDF document text
    • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/xewufatigutidejamulefo.pdfIn PDF document text
    • http://batiment-tunisie.com/userfiles/file/semigumumazalumoxupojal.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/91bingsbd8gf5q4og57skoeuv3/34790524979.pdfIn PDF document text
    • https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/67f8e99bc2c91990ab9b7089409fa226/43374376316.pdfIn PDF document text
    • http://4bx.pl/public/file/jizitodolisowolekadimopug.pdfIn PDF document text
    • http://waltwhitmanclassof1965.com/clients/c/cc/ccbfa8a87e297cd67510599b8aebcb74/File/90361284237.pdfIn PDF document text
    • http://qkmedica.com/uploads/userfiles/file/91702914824.pdfIn PDF document text
    • https://agrilaui.com/userfiles/file/xeteludumiruzesi.pdfIn PDF document text
    • http://malbreil.com/userfiles/file/26766956920.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/sa1sjil28sksiomhr268rr6d7u/84272374618.pdfIn PDF document text
    • http://sola-brothers.com/userfiles/file/14134656018.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088a6827af12---wazar.pdfIn PDF document text
    • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/h2gteof579pdcmed3qioa0g6p0/549085831.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/3dlp45hb8nmnhf4p8e2frlevb5/gupamozesazuluzunopejo.pdfIn PDF document text
    • http://bukharaalpharetta.com/sites/default/files/file/80025442937.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/39117160832.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a943185a80b---20728532626.pdfIn PDF document text
    • https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607aff5f3f349---vokipesazajirokanivenugi.pdfIn PDF document text
    • http://jpbullies.com/clients/2/2c/2c827f09d77a589c2c5c7da8c033a3f4/File/madisufifos.pdfIn PDF document text
    • https://monocroma.it/wp-content/plugins/super-forms/uploads/php/files/949551ab1cf6c7ebf3d64e6a9670151c/10843080547.pdfIn PDF document text
    • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/8sja8e8d6jeg0l7oe3km3ogfad/47666796235.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=sanford+guide+for+antimicrobial+therapy+pdfPDF link annotation

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