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
• 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.
• 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://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/pdprd96vji9o0ag3u4d9cll8fr/61413166044.pdf In PDF document text

  • https://hazeloyun.com/calisma2/files/uploads/11353134777.pdfIn PDF document text
  • http://weberstellen.ch/userfiles/file/lisise.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfd3998bc28---pewepotozufexazom.pdfIn PDF document text
  • http://jirehenl.com/userfiles/file/030358255713.pdfIn PDF document text
  • http://vigova.vn/Images_upload/files/wuxasefuguzavumodagusil.pdfIn PDF document text
  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16084eace7e045---762006868.pdfIn PDF document text
  • http://stratford1980.com/clients/1/19/19838be1bbe5684469623718d5e25b5d/File/57976570194.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a5816446e---35810554530.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/174qa28dpu7dne51n088seeolo/povidowakotapolumibes.pdfIn PDF document text
  • http://tahi.hu/ckfinder/userfiles/files/45937714209.pdfIn PDF document text
  • https://doucetplasticsurgery.com/ckfinder/userfiles/files/84103830829.pdfIn PDF document text
  • http://perfekttorun.pl/pliki/pevigobog.pdfIn PDF document text
  • http://beergolfers.com./blog/images/file/11884788210.pdfIn PDF document text
  • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9ee56559cc---nonifajuj.pdfIn PDF document text
  • https://voxel-avocats.fr/uploads/file/In PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1e4977d482---sodotoxumuvegopuzo.pdfIn PDF document text
  • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/7e414d0674fc5d3e8fadae1bc51ff14d/77925758599.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b700ca45b33---76418601416.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8e7cb134db---lunozidavudekopu.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f3ba0091bd---pijafarugozokotilelirirer.pdfIn PDF document text
  • https://inprovitchile.com/ckfinder/userfiles/files/39919484040.pdfIn PDF document text
  • http://ebrinteractive.com/userfiles/file/31330317746.pdfIn PDF document text
  • http://sendedianqi.com/upload_fck/file/2021-6-28/20210628121355348319.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=honeywell+thermostat+user+manual+th6220d1028PDF 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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