Malicious PDF — malware analysis report

Heuristics 6

• 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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.
• 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://crophysi.ru/wb?keyword=ignou%20b.%20ed%20entrance%20examination%20form In PDF document text

  • https://static.s123-cdn-static.com/uploads/4481520/normal_5ff5c19fa6aae.pdfIn PDF document text
  • http://lirelejavebot.iblogger.org/86449794541.pdfIn macro / runtime command snippet
  • http://linza.media/guided_mule_deer_hunts_in_oregonjl59a.pdfIn PDF document text
  • https://cdn.sqhk.co/jagapifa/jaiahgd/95880376586.pdfIn PDF document text
  • http://ideal-it.fun/48714873572sz1z6.pdfIn PDF document text
  • https://cdn.sqhk.co/kitolitik/lIxZgct/25469130375.pdfIn PDF document text
  • https://cdn.sqhk.co/vekuperik/heZWWgc/dance_rail_3_wiki.pdfIn PDF document text
  • https://cdn.sqhk.co/joninopi/KiiqjgL/8031731672.pdfIn PDF document text
  • https://cdn.sqhk.co/lufezeralon/ZigzhjC/tie_dye_kit_amazon._ae.pdfIn PDF document text
  • https://cdn.sqhk.co/vakanaju/yhfEddc/cake_decorating_with_strawberries_and_chocolate.pdfIn PDF document text
  • http://ig-socialmedia.xyz/cer_science_examplesnbr24.pdfIn PDF document text
  • https://cdn.sqhk.co/ramazunor/jbjeCge/disexaroziru.pdfIn PDF document text
  • https://static.s123In macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://zelavejifokekoj.epizy.com/curly_caterpillar_handwriting_sheets.pdfIn PDF document text
  • http://kegenag.rf.gd/plus_messenger_apk_2019.pdfIn macro / runtime command snippet
  • http://mujasanowagug.epizy.com/neriposowotozag.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://scripts.sil.org/OFLIn PDF document text

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