Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://tomaszfilipczak.pl/userfiles/file/5253642702.pdf In PDF document text

  • http://eastcoastbiker.de/sites/default/files/file/54509737091.pdfIn PDF document text
  • http://pinzimoniofiumicino.eu/userfiles/files/5959285570.pdfIn PDF document text
  • http://mxag.com/upload/browse/file/vexeke.pdfIn PDF document text
  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16087a31e902a3---48741788127.pdfPDF link annotation
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098322f3d3f4---fegejugekovi.pdfIn PDF document text
  • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab15061cdaf---dilibafil.pdfIn PDF document text
  • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/35rg27f7kf7rlto1uscpgdv4rk/jejuvabumolevipepebalu.pdfIn PDF document text
  • http://beijingteye.com/upload/files/wavirabewema.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607217a056f83---59182449492.pdfIn PDF document text
  • https://chmelo.hu/sites/default/files/file/lemosalowodopinupen.pdfIn PDF document text
  • http://schooldistrictservices.com/clients/f/f6/f6ab1571d2cdf5e569af7b76e288b17c/File/48114864223.pdfIn PDF document text
  • http://clinivetmadonnadirosa.eu/userfiles/files/tulerebadodavidi.pdfIn PDF document text
  • https://art4you.sk/editor_uploads/system/files/noteraxobozunodamutuzal.pdfIn PDF document text
  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/38dd1726716a7da97fab6b15d9970dcb/maludonexiwuweferedik.pdfIn PDF document text
  • https://raljob.com/userfiles/file/89842079865.pdfIn PDF document text
  • http://babywagen24.de/userfiles/file/zovar.pdfIn PDF document text
  • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b07bd9af92c---legowam.pdfIn PDF document text
  • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/512a1b91ceb6175e634ca75b2d9c97eb/43282182893.pdfIn PDF document text
  • http://logtech.cz/foto/Image/file/7415292542.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160bc52af2d4d1---velutu.pdfIn PDF document text
  • http://turatabor.hu/media/5944241940.pdfIn PDF document text
  • http://yuhenganquan.com/userfiles/file/20210624103057_1007008559.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=descargar+convertidor+de+archivos+pdf+a+excel+gratisPDF 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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