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
• 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
• 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://vilenefex.ru/strik?utm_term=foxconn+n15235+sound+drivers+windows+xp+free+download PDF link annotation

  • https://xakuwije.weebly.com/uploads/1/3/4/3/134340554/wuzog.pdfIn PDF document text
  • https://cdn.sqhk.co/lasumalena/lghmQje/cat_exam_form_date_2019.pdfIn PDF document text
  • https://cdn.sqhk.co/mexovaru/hfCzcic/49769632411.pdfIn PDF document text
  • https://cdn.sqhk.co/zudoputasafe/ahdxhiJ/87223516281.pdfIn PDF document text
  • https://kaxobemux.weebly.com/uploads/1/3/4/6/134676595/munaxejuliwomimani.pdfIn PDF document text
  • https://fumitofid.weebly.com/uploads/1/3/1/6/131637255/dixolifewulakidopam.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://db6d3479-2aeb-4a59-914c-1f55c48648c8.filesusr.com/ugd/9f5433_c371512d782341eab6c4df00a854addb.pdf?index=trueIn PDF document text
  • https://40c507a3-37b7-491f-afd3-f28ba3af1fb2.filesusr.com/ugd/7f5264_a666423651334d1ba64c2a020a1224f9.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/lomiwexuva/codycross_answers_group_19_puzzle_3.pdfIn PDF document text
  • https://s3.amazonaws.com/turip/arya_2_film_songs_naa_songs.pdfIn PDF document text
  • https://s3.amazonaws.com/pulujolatepuv/62076696246.pdfIn PDF document text
  • https://858e1da1-ad31-4e5b-aec0-89c59c6c71f6.filesusr.com/ugd/6240f8_4c5fa802a70c42cb89a16265ffa2df45.pdf?index=trueIn PDF document text
  • https://8d6920c1-aef5-45ed-b1a0-e693d63948fb.filesusr.com/ugd/0a593f_46e7cf35e11544ac9f83ecf2851f2455.pdf?index=trueIn PDF document text
  • https://d99c26cc-8c68-456d-a039-1a26994c8d26.filesusr.com/ugd/105a8c_43151e4db7e742309e6ea1dfd5c7c565.pdf?index=trueIn PDF document text
  • https://39c10a3a-92c6-412a-a1bb-b8a1fc48fbc4.filesusr.com/ugd/259099_854d7b99c32f4d6897b37ae924188c82.pdf?index=trueIn PDF document text
  • https://d09251a9-b09e-4077-8ccb-24037f005f7b.filesusr.com/ugd/a6ce17_872e49c392a942c5b42c3166f8b2d8e5.pdf?index=trueIn PDF document text
  • https://fec450ea-b80f-4746-b851-35139cc02de5.filesusr.com/ugd/53a83b_0a80c1b7664246689ba247175e65339d.pdf?index=trueIn PDF document text
  • https://43a98339-0465-49d0-a416-8cef4780896f.filesusr.com/ugd/89258f_48c9316549544723b6416e8ce4f85f68.pdf?index=trueIn PDF document text
  • https://19a4122d-28db-4ec2-a9e3-8c1e87f24dd5.filesusr.com/ugd/70d0b7_6388118772ad446c96f9bf49d2fdf0e0.pdf?index=trueIn PDF document text
  • https://94cb5446-44f7-499c-8ddd-8d9df3a2db3d.filesusr.com/ugd/9b9c26_1b76ce6e6e044feaaca89a8d3ec5a243.pdf?index=trueIn PDF document text
  • https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_c6693b26bb70470fbe869ef0f89249dc.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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