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
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://catamma.ru/uplcv?utm_term=wee+waa+newspaper PDF link annotation

  • https://szelvedojavitasmiskolc.hu/files/files/7721474267.pdfIn PDF document text
  • http://hndgyl.com/v15/Upload/file/2021911124406276.pdfIn PDF document text
  • https://elperrocallejero.info/ckfinder/files/rusodi.pdfIn PDF document text
  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/a39ef4e05d195ac55af72b38fc92f167/devalukijiguliletadideb.pdfIn PDF document text
  • http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/86484398713.pdfIn PDF document text
  • https://franchise-vietnam.com/app/webroot/img/files/bafelukikidudovekoduja.pdfIn PDF document text
  • http://my-hustle.net/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/55005572004.pdfIn PDF document text
  • http://villkasz.hu/editor_up/76036592947.pdfIn PDF document text
  • http://sinorarechem.com/upload/files/70115302865.pdfIn PDF document text
  • http://www.gamylai.vn/uploads/files/53974927429.pdfIn PDF document text
  • http://refah4ter.info/basefile/hotelrefah4terir/files/23364336604.pdfIn PDF document text
  • http://vibrobreaker.com/files/files/90586045640.pdfIn PDF document text
  • https://idd.no/ckfinder/userfiles/files/89727937884.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/72rg373v7tsi5jc20ockmeh674/35538644721.pdfIn PDF document text
  • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/11f4da05ebe5f6bec9c8e996d9ef6181/84240945566.pdfIn PDF document text
  • http://gps-ambroisie.com/ressource/site-image/files/kumivaregunawegi.pdfIn PDF document text
  • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/23665c56139575fa3064605b3db5a4c7/43467360777.pdfIn PDF document text
  • https://globalmediaminds.com/uploads/files/3977026679.pdfIn PDF document text
  • https://www.ocnistudio.cz/ckfinder/userfiles/files/kovujulalo.pdfIn PDF document text
  • http://munnartourism.com/uploads/file/36139908092.pdfIn PDF document text
  • https://appvid.eus/userfiles/files/jijibimosobol.pdfIn PDF document text
  • http://hutnia.pl/userfiles/file/27425782159.pdfIn PDF document text
  • http://mmbassisiprovince.in/files/js/ckfinder/userfiles/files/84144322752.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16143dce7d1566---57260975558.pdfIn PDF document text
  • https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/lanidufelugugoz.pdfIn PDF document text
  • http://bortran.com/upload/image/file/20210912101757.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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