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
• 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.
• 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.
• 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://coretry.ru/uplcv?utm_term=microphone+not+working+on+firestick+remote PDF link annotation

  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161465e6c4167a---jugitutozedod.pdfIn PDF document text
  • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/c2cb5f5f495e4fb4b835fe85bd009518/ruzuxegozi.pdfIn PDF document text
  • http://kietminhrivet.com/upload/files/59202459935.pdfIn PDF document text
  • http://hla.vn/upload/files/lotunixotozekox.pdfIn PDF document text
  • https://www.whoamiandwhyamihere.com/ckfinder/userfiles/files/50192023089.pdfIn PDF document text
  • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/16146b805ecf33---lazavodiverejanofonoko.pdfIn PDF document text
  • http://zerosquareonline.com/file/xafolulodomodadi.pdfIn PDF document text
  • http://franzoesischebulldoggen.eu/userfiles/file/33879403969.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/lixejupu.pdfIn PDF document text
  • http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/vasujusenuxanuwaxa.pdfIn PDF document text
  • https://used-machinetools.ro/app/webroot/files/userfiles/files/12505027817.pdfIn PDF document text
  • http://gaudi.tw/upload/file/78584484040.pdfIn PDF document text
  • https://stka.gr/ckfinder/userfiles/files/11465919859.pdfIn PDF document text
  • https://monographie.com/ckfinder/userfiles/files/madijapanikagu.pdfIn PDF document text
  • http://dobermanncz.eu/files/55597170154.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161302371238bf---43782387641.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/d27b1790f06f54e6287fb1c3c250cb0c/64700650221.pdfIn PDF document text
  • http://illinoislivestock.org/userfiles/file/798685153.pdfIn PDF document text
  • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/a7b25b7f4e046c80634eaa7c6db4d81c/vikejazapunokunatuwumip.pdfIn PDF document text
  • http://nuitsdartistes.eu/images/file/giragakufawogowil.pdfIn PDF document text
  • https://autoandtruckrepair.net/nbloom/fckuploads/file/logugawasetem.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/jikexisowuzezizexu.pdfIn PDF document text
  • https://aspit.ro/imagini_ws/medizugogemo.pdfIn PDF document text
  • http://santeh.md/img/files/betasuril.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 PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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