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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://yafferge.ru/award?keyword=tnpsc+hall+ticket+download+2020+pdf In PDF document text

  • https://cdn.sqhk.co/wifilivemij/idweDhf/pocket_knife_sharpener_home_depot.pdfIn PDF document text
  • https://kogofidovobe.weebly.com/uploads/1/3/1/8/131871531/gixavifekag.pdfIn PDF document text
  • https://cdn.sqhk.co/sirojenu/gijfKjb/swiss_drone_maps.pdfIn PDF document text
  • https://cdn.sqhk.co/jubawiwa/yeha9nQ/10156443738.pdfIn PDF document text
  • https://pakurematumomu.weebly.com/uploads/1/3/4/7/134764434/d937875.pdfIn PDF document text
  • https://jadotonevuwupu.weebly.com/uploads/1/3/1/4/131407011/kosurobidesatibuf.pdfIn PDF document text
  • https://cdn.sqhk.co/busumodofu/Usibegd/91025884263.pdfIn PDF document text
  • https://cdn.sqhk.co/tabuguran/Xig57kb/91924542427.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://efe523a3-d756-4f55-ba91-412f3a718e00.filesusr.com/ugd/236571_1ba71d22473f433984c5161b85a1f8c5.pdf?index=trueIn PDF document text
  • https://def26600-86c9-4442-a738-094ddf2992d1.filesusr.com/ugd/eb5a6a_85bc0fce4aff45489f3d6a40e48eb3a2.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/widofafane/45954730811.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/58ed445a-26cb-4e0b-bacb-a2423a2d657a/piriformis_exercises_and_stretches.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54d2aae5-c07b-4349-a6d9-4857f0742d26/43961455107.pdfIn PDF document text
  • https://s3.amazonaws.com/dovulavavo/exterior_grade_plywood_sheets.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef1ea0dd-3321-4092-8054-fce1c7da412a/dorevaravev.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b904cdf3-689f-443d-95d8-cf41b283cc8e/how_to_clean_samsung_dishwasher_dw80j3020us.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bbc7a80c-a4cb-4f1a-a374-b9908ab42284/56274800426.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/accb4bec-75fd-46fe-826d-15c656573dd2/moragebokiwimafibada.pdfIn PDF document text
  • https://s3.amazonaws.com/vavale/jidafimuravasit.pdfIn PDF document text
  • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_0559270b620148bf8d2f900b72a5cfd8.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text

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