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 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.
• 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://lazav.co.za/YmrXLWy8?keyword=rstudio%20pairs%20function PDF link annotation

  • http://studioarchterreni.it/userfiles/files/35114981001.pdfIn PDF document text
  • http://melvin.cz/data/dujipapawiweb.pdfIn PDF document text
  • https://rafafokisot.weebly.com/uploads/1/3/4/7/134738004/kibirifo.pdfIn PDF document text
  • http://rc-modeller.se/images/file///18971681250.pdfIn PDF document text
  • https://fubuworarakej.weebly.com/uploads/1/3/4/1/134108970/sopoxikasoko.pdfIn PDF document text
  • https://www.rumahnomorcantik.com/file/bililugamob.pdfIn PDF document text
  • https://golotarati.weebly.com/uploads/1/3/1/8/131856611/0c1c87.pdfIn PDF document text
  • https://tuyendung.vinaonegroup.net/upload/files/gekarofikawogetafil.pdfIn PDF document text
  • http://yensaophanrang.net/userfiles/file/xumigesekinox.pdfIn PDF document text
  • http://www.klub112.cz/upload/files/zoxuvezejerurudetupan.pdfIn PDF document text
  • https://sijejanuri.weebly.com/uploads/1/3/4/8/134861930/0c2a3bfc.pdfIn PDF document text
  • https://sawuraba.weebly.com/uploads/1/3/4/7/134720576/xulazedapowoju.pdfIn PDF document text
  • https://xaxusadusu.weebly.com/uploads/1/3/4/4/134497069/zebuketasijuxidu.pdfIn PDF document text
  • https://razavewi.weebly.com/uploads/1/3/0/8/130813306/94162.pdfIn PDF document text
  • https://isgz.me/userfiles/file/5570613810.pdfIn PDF document text
  • https://renepavavoz.weebly.com/uploads/1/3/4/0/134012855/wigozomesu-suwidal-wogegi.pdfIn PDF document text
  • http://metalltechnik-kutschi.at/taniwafixanemipotazi.pdfIn PDF document text
  • https://botonulufudid.weebly.com/uploads/1/4/1/3/141351952/8555042.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/tewises.pdfIn PDF document text
  • https://zoxusikajikad.weebly.com/uploads/1/3/4/8/134851315/fupunuresazub.pdfIn PDF document text
  • https://guxafosiwu.weebly.com/uploads/1/3/1/4/131453681/muzuvujarerejina.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_off0000a72b.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a72b.bin)

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