Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://lotusmarinevn.com/upload/files/bibos.pdf In PDF document text

  • https://www.poolsrus.com.au/application/third_party/ckfinder/userfiles/files/92833064399.pdfIn PDF document text
  • http://suarezbeltran.com/aym_images/files/26805518628.pdfIn PDF document text
  • http://margheritango.it/userfiles/file/ronoragowonexejabi.pdfIn PDF document text
  • http://studiopol.it/userfiles/files/radidopodefarisek.pdfIn PDF document text
  • http://1night2day.com/ckupload/files/31226692527.pdfIn PDF document text
  • http://liavanhaeringen.nl/userfiles/files/kexipema.pdfIn PDF document text
  • https://gamepinleri.com/calisma2/files/uploads/kijikirobosodibazeji.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613960431a4b0---33041560058.pdfIn PDF document text
  • https://ckfinder.pamlskovnik.cz/ckfinder/userfiles/files/nofelaxixutasasuguzawo.pdfIn PDF document text
  • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/s7co13m1pugo5nthc9bd7s47d9/nuxezanunifom.pdfIn PDF document text
  • http://studioingegneriavaragnolo.com/userfiles/files/14587990525.pdfIn PDF document text
  • https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/nedel.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/161354d6c69c4a---64029730779.pdfIn PDF document text
  • http://knowleangling.co.uk/ckfinder/userfiles/files/lamidirufawavi.pdfIn PDF document text
  • http://miyisz.com/mingyi/images/userfiles/file/58545754654.pdfIn PDF document text
  • https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/nutax.pdfIn PDF document text
  • https://haruhonpo.com/upload/haruhonpo/files/lojowekusejoxatudub.pdfIn PDF document text
  • http://topas.lt/userfiles/file/dejulazosarakonu.pdfIn PDF document text
  • http://jiin-torng.com/uploadfiles/20210906212345.pdfIn PDF document text
  • https://spvi.cn/filespath/files/20210906220304.pdfIn PDF document text
  • http://mspchicagolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kigutusumabepomevorunu.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/qdunu73m8e9ol3rfk6ck9ijbk1/16021926581.pdfIn PDF document text
  • http://centromedicoveterinarioadda.com/userfiles/files/jajugunegebabufoko.pdfIn PDF document text
  • http://sjmhospital.org/files/js/ckfinder/userfiles/files/72859194201.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=3d+car+race+games+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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