Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://yafferge.ru/aws?utm_term=how+to+use+devacurl+defining+gel In PDF document text

  • https://lopufofogepuxal.weebly.com/uploads/1/3/4/6/134695200/130803.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4504791/normal_5fd7f96961915.pdfIn PDF document text
  • https://cdn.sqhk.co/vabalogu/jgcSgdt/sekoronezuwumuresuwag.pdfIn PDF document text
  • https://kimilofu.weebly.com/uploads/1/3/0/8/130873947/5a58492be7.pdfIn PDF document text
  • http://mydenverneighborhoods.com/796974684662zqi1.pdfIn PDF document text
  • https://luboguti.weebly.com/uploads/1/3/0/7/130739177/serivifigatukof-zinotiruw-ketaxuf.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4410418/normal_5ff964b3ef3e8.pdfIn PDF document text
  • http://timelessdecorum.com/venovxy89e.pdfIn PDF document text
  • https://topalezomezo.weebly.com/uploads/1/3/4/3/134305389/e412a4e36e158.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4453719/normal_5ffe56a1c31bb.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/rutufokedizon/voice_changer_during_call_app_apk.pdfIn macro / runtime command snippet
  • http://sujuxokilir.epizy.com/zurapikerazogiwuxesisidu.pdfIn PDF document text
  • https://s3.amazonaws.com/degagaziv/29760250204.pdfIn PDF document text
  • http://dagogedimin.rf.gd/mifaxenopukiw.pdfIn PDF document text
  • https://s3.amazonaws.com/bidivo/55375912921.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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