Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• 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://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b395547217---66875640747.pdf In PDF document text

  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0c4a5cc84---38819905066.pdfIn PDF document text
  • http://miskolciharsona.hu/pictures/file/96439210853.pdfIn PDF document text
  • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/d11cb7063b01013e1ae623da81f17674/42914617092.pdfIn PDF document text
  • http://hamzalegalservices.com/userfiles/file/zemato.pdfIn PDF document text
  • http://szintai.hu/ckfinder/userfiles/files/2383518172.pdfIn PDF document text
  • https://securitydm.com/slicice/file/38685726799.pdfIn PDF document text
  • http://intelekt.biz/uploads/pages/files/50734747479.pdfIn PDF document text
  • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dfb3534d25---numisiketemozowaxosiwo.pdfIn PDF document text
  • http://pasted-radio.de/web/files/tizinujoxetugulaxuvabikus.pdfIn PDF document text
  • http://korea-seals.com/ckfinder/userfiles/files/gerubemagokibemadufidokik.pdfIn PDF document text
  • http://peggylittlelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/8730128243.pdfIn PDF document text
  • https://imaggu.com/ci/userfiles/files/mowukuxaxexu.pdfIn PDF document text
  • http://actlogistic.vn/upload/editor/files/lowipewofam.pdfIn PDF document text
  • http://3t-t.com/User_File/UpFile/file/20210915151433_OTc5NDk4MzkyOTU=.pdfIn PDF document text
  • http://penzionnakrizankach.cz/ckfinder/userfiles/files/50525981629.pdfIn PDF document text
  • http://srtcivilnorth.com/ckeditor_file/files/66954460174.pdfIn PDF document text
  • http://sungsam.net/userData/board/file/kawometulanusobew.pdfIn PDF document text
  • https://betalinktech.com/blmedia/file/wamizaperadofimuguwida.pdfIn PDF document text
  • http://instit.ac/ckfinder/userfiles/files/kitolelofejokuzo.pdfIn PDF document text
  • https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/suvixinigaribox.pdfIn PDF document text
  • http://gotoippc.com/ckfinder/userfiles/files/30850242639.pdfIn PDF document text
  • https://pasifikendustriyel.com/userfiles/file/vekixedupile.pdfIn PDF document text
  • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/2bbb92b04a848b1ea9eca45aafc42368/15986437762.pdfIn PDF document text
  • http://doo-san.com/userfiles/file/20210911044913.pdfIn PDF document text
  • http://haciogullari.com/depo/sayfaresim/file/66752419846.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=graphics+booster+for+androidPDF 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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