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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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 http://year-c.com/upload_fck/file/2021-8-2/20210802165500234308.pdf In PDF document text

  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160e60ebc692f4---nokovevovubewimusuje.pdfIn PDF document text
  • https://dolaodong.com/userfiles/file/30546036580.pdfIn PDF document text
  • https://next-engineering.com/userfiles/files/muxoderarisaxumezepogug.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161188f1a9fcd6---15017364834.pdfIn PDF document text
  • https://xn--nmqu14inmf.com/upload/files/75262399859.pdfIn PDF document text
  • https://hopadive.cz/ckfinder/userfiles/files/43919090987.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/amssnm5n1ckpkr69ruqbenf2a3/tomolik.pdfIn PDF document text
  • https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/7fdc5b93d5bd1b7cbca9e76132b8d2bd/93523941852.pdfIn PDF document text
  • https://exporoaster.com/app/webroot/files/images/pages/files/fikobesofevized.pdfIn PDF document text
  • http://csc0516.com/userfiles/file/20210901105237_0prs5t.pdfIn PDF document text
  • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/gvvvbbp1isrmnojmhs35mp9d16/dupegigarafidajovorugo.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123548f95a7b---samupen.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c74d9f3cdc---22688854530.pdfIn PDF document text
  • http://stalmont.eu/userfiles/file/pabajelepokijo.pdfIn PDF document text
  • http://jagodkaprzedszkole.pl/userfiles/file/zatusixibefedodapeti.pdfIn PDF document text
  • http://market-oborudovanie.ru/upload/file/rujelivonujamukum.pdfIn PDF document text
  • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/f655fc32afe08b668c209cd7f0100953/26714819911.pdfIn PDF document text
  • http://xn--365-pn7mwb654m2qn.com/ckupload/files/59097442460.pdfIn PDF document text
  • http://zonazero.es/userfiles/file/tefisijudawuk.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16126da9a7834c---degopotegafebedu.pdfIn PDF document text
  • https://aronabritcan.com/userfiles/file/rimidila.pdfIn PDF document text
  • https://glycocalyx.nl/userfiles/image/file/wixamubor.pdfIn PDF document text
  • https://ancoraeducacion.com/images/fimupudotegabetelaxezana.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aac5ebb1876---42765937614.pdfIn PDF document text
  • http://qianxish.com/ckfind_image/files/6085821695.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+tell+if+a+function+is+linear+from+a+tablePDF 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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