Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://crewmak.ru/uplcv?utm_term=cricopharyngeus+muscle+dysfunction PDF link annotation

  • http://consulcongress.it/uploads/assets/file/39967150342.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1615abf95396a7---sesezig.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1614340394656e---80929411960.pdfIn PDF document text
  • https://educhina.mn/editor/files/4461238560.pdfIn PDF document text
  • http://studiofelician.com/userfiles/files/vilumo.pdfIn PDF document text
  • http://24cvety.ru/upload/files/safalaliwisoro.pdfIn PDF document text
  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614b95dab3fb3---fonexekesiwewelop.pdfIn PDF document text
  • http://a2kat.ru/userfiles/file/jotudazokebunosajisesagi.pdfIn PDF document text
  • http://onlinetradeshow.ir/uploads/files/54489067562.pdfIn PDF document text
  • http://www.mediagrand.hu/data/editorfile/dolojolurifuvutuzawe.pdfIn PDF document text
  • http://thermogroup.ru/uploads/files/2957772747.pdfIn PDF document text
  • http://rvhifi.cz/files/file/dubepufotuloso.pdfIn PDF document text
  • http://rosniyom.com/userfiles/files/negevekanezovomivugugobob.pdfIn PDF document text
  • http://gwynnoak.abwingsmd.com/uploads/files/tekuku.pdfIn PDF document text
  • http://tcyy88.com/userfiles/file/2021092221554773499.pdfIn PDF document text
  • http://weforyou.it/userfiles/files/xeneviwudusufat.pdfIn PDF document text
  • http://rana-international.com/userfiles/files/dirugido.pdfIn PDF document text
  • http://walosports.cl/userfiles/file/23655893368.pdfIn PDF document text
  • https://cuatudongnhatrang.com/uploads/files/18375075244.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/opv1902lm5hgrnej3etlqgjvt3/64897060488.pdfIn PDF document text
  • https://premiersuli.hu/files/files/28732893315.pdfIn PDF document text
  • https://perfecthospitals.com/FCKeditor/file/13438187354.pdfIn PDF document text
  • http://airconbank.com/upload/fckeditor/file/26527127744.pdfIn PDF document text
  • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/bcnvf09b20icmdavdlqmg1dn2e/sizijikilisodos.pdfIn PDF document text
  • http://coeb.eu/userfiles/files/69730960867.pdfIn PDF document text
  • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ba238d34a4---72454636012.pdfIn PDF document text
  • http://coeb.eu/userfilesIn macro / runtime command snippet
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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