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
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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://yubit.co.za/YmrXLWy8?keyword=what%20is%20human%20computer%20interaction%20course PDF link annotation

  • https://jidegumot.weebly.com/uploads/1/3/0/7/130776526/c28d6d040.pdfIn PDF document text
  • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16234035b520ab---basibapexozifofepikukun.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/162240eeb7ef43---texorafi.pdfIn PDF document text
  • https://voskovefiguriny.cz/kcfinder/upload/files/ronakudej.pdfIn PDF document text
  • https://ckmusicdesign.nl/userfiles/file/renitovewavuzode.pdfIn PDF document text
  • https://maftplayer.net/calisma2/files/uploads/besedamu.pdfIn PDF document text
  • https://vekekugez.weebly.com/uploads/1/3/4/8/134883785/puxes-bibesababuwaf-rowokivirag-bulidodovo.pdfIn PDF document text
  • http://minhanh.com/files/borobividufolajig.pdfIn PDF document text
  • http://dogable.de/userfiles/file/nuzisesajobubaji.pdfIn PDF document text
  • https://nugabopudiwugo.weebly.com/uploads/1/4/1/2/141259947/dorodazujareb.pdfIn PDF document text
  • https://mixadawobavaw.weebly.com/uploads/1/3/5/9/135982386/zufifimonaxod_zajazug_kifewokem.pdfIn PDF document text
  • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623ef48c0a7fe---14315811296.pdfIn PDF document text
  • https://womovenurobo.weebly.com/uploads/1/3/1/8/131872055/4155579.pdfIn PDF document text
  • https://roginibexit.weebly.com/uploads/1/3/0/9/130969264/najizixubo-solikefodupoj-pebidudireladu-zerapuxafuvifar.pdfIn PDF document text
  • https://xemaxokiba.weebly.com/uploads/1/3/4/3/134350412/mejuriw.pdfIn PDF document text
  • https://maxolesaso.weebly.com/uploads/1/3/0/7/130776327/5235155.pdfIn PDF document text
  • http://isped.net/kcfinder/upload/files/24224910949.pdfIn PDF document text
  • http://cephedanismani.com/images/pages/file/debelebenen.pdfIn PDF document text
  • http://hortprotect.canadanursery.com/image/file/50921464726.pdfIn PDF document text
  • 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 extracted file (font_00_sfnt_off0000bec5.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bec5.bin)

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