Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://xn--sanitrprofi-p8a.ch/fckeditor/editor/images/file/daxadupubakativabub.pdf In PDF document text

  • https://jbdclothiers.net/emailer/userfiles/file/16188884333.pdfIn PDF document text
  • http://dorrstrechy.cz/UserFiles/File/71016615460.pdfIn PDF document text
  • http://csc028.com/userfiles/file/20210906104556_7pugig.pdfIn PDF document text
  • https://kurek-rowery.pl/user_pict/file/78231589.pdfIn PDF document text
  • http://sovaimm.it/userfiles/files/wazejunusozuraxelu.pdfIn PDF document text
  • https://ww150002.linebot.net/upfile/files/20210906010204.pdfIn PDF document text
  • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613521a7d9ed6---menomububafik.pdfIn PDF document text
  • https://essuances.com/ckfinder/userfiles/files/weranarezukokedox.pdfIn PDF document text
  • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b39a08c3f---20069197574.pdfIn PDF document text
  • http://humanitool.ru/userfiles/file/wekunixamamirogel.pdfIn PDF document text
  • http://havefuntogether.com/image/upload/File/sakujipejo.pdfIn PDF document text
  • http://ageddfjtjgrade.pretty-match.com/upload/files/68171658724.pdfIn PDF document text
  • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161344bffb5908---78023868662.pdfIn PDF document text
  • http://placidlakes.com/larpm/uploads/file/belesibifewikonisepoz.pdfIn PDF document text
  • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/43d885f15ca98a093629aa96890d1eb0/bowujasijenupomulafenaso.pdfIn PDF document text
  • http://zhuxintrading.com/uploads/ckfinder/files/20210908/16310761375724.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/nalurupemegu.pdfIn PDF document text
  • http://jinruily.com/UploadFile/file/20210906035050360.pdfIn PDF document text
  • http://apisicul.com/userfiles/files/84221437065.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/161317e9ae48a9---33817969376.pdfIn PDF document text
  • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1613612aa3a6de---dujejajozoxivux.pdfIn PDF document text
  • https://drisraadentalcenter.com/userfiles/file/85743014365.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=doosan+daewoo+forklift+parts+manualPDF link annotation
  • 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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