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.
• 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/strik?utm_term=que+es+composicion+en+artes+plasticas In PDF document text

  • https://cdn.sqhk.co/fabokofe/fPiNBU7/4779940630.pdfIn macro / runtime command snippet
  • https://cdn-cms.f-static.net/uploads/4411231/normal_605b09fea65da.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4388165/normal_5fca96686f73f.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4421768/normal_5fc925d24fe6e.pdfIn PDF document text
  • https://cdn.sqhk.co/timosavegug/dz3icgc/chuck_full_movie.pdfIn PDF document text
  • https://cdn.sqhk.co/rajemaramiw/cJgdghM/9817010276.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4415519/normal_5fcc50e7eacbd.pdfIn PDF document text
  • https://cdn.sqhk.co/gazejuruni/kMFuiaU/trivia_full_movie.pdfIn PDF document text
  • https://cdn.sqhk.co/tenotitur/hjRnXgi/jesam.pdfIn PDF document text
  • https://cdn.sqhk.co/bupitagalir/HWjiheL/la_vie_en_rose_tabs_harmonica.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366034/normal_5fd2586f841d5.pdfIn PDF document text
  • https://cdn.sqhk.co/wubunepan/Lpchcgi/science_fiction_sound_effects_ringtones_free.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/mubefula/is_s_curl_bad_for_natural_hair.pdfIn PDF document text
  • https://s3.amazonaws.com/pazerogasarinu/55522707708.pdfIn PDF document text
  • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_73d11e296e9e43f0a6c1ad58a437a14a.pdf?index=trueIn PDF document text
  • https://feedbc21-cb93-402c-9ae2-3476589645d2.filesusr.com/ugd/f3ecbe_cd17367aec44459ab3a5a46e727774ed.pdf?index=trueIn PDF document text
  • https://737bf953-b780-43bc-8af0-312ed5328a40.filesusr.com/ugd/017c44_79f74b20ff854b03b454c6cf76d3cbca.pdf?index=trueIn PDF document text
  • https://33da92c3-26de-4f6b-bf12-1693cb6a6e79.filesusr.com/ugd/0307f2_d495a63acac045a08862888bb05d92c6.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/banula/hobart_4822_meat_grinder_parts.pdfIn PDF document text
  • https://9d349da1-218b-4b59-9e37-2a90cab56d40.filesusr.com/ugd/de9003_3de7344919d244129b91f1022c327a6f.pdf?index=trueIn PDF document text
  • https://bef89f6e-6323-4b84-ad9d-a44490bfcc4f.filesusr.com/ugd/96768c_e1c1169052d74583b6f197d1808a8f23.pdf?index=trueIn PDF document text
  • https://db6d201d-bdff-4648-9982-d9cfaac7639e.filesusr.com/ugd/98857b_3ed93020e933479dbd5e47311ab31c7a.pdf?index=trueIn PDF document text
  • https://c039f79f-855f-4b64-8838-30138aeea086.filesusr.com/ugd/6b78cb_ce94ee445bec48e1992b95a7580b9da4.pdf?index=trueIn PDF document text
  • https://2703069b-a6ff-4ff9-983c-db139a8d76ba.filesusr.com/ugd/8b61cf_85636fa5b24f4f6c9b882ac1d0547497.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
  • https://s3.amazonaws.com/pazerIn macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text

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