Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://nipisod.ru/123?utm_term=exponent+rules+practice+worksheets PDF link annotation

  • https://cdn.sqhk.co/lisesemafo/ehghbid/jubitupagimimeguxukofo.pdfIn PDF document text
  • https://cdn.sqhk.co/jumifokujuje/jjcDjcr/62652745122.pdfIn PDF document text
  • https://zakulupibuwuvos.weebly.com/uploads/1/3/4/6/134686441/2925546.pdfIn PDF document text
  • http://tevutubiwij.getenjoyment.net/62753039211.pdfIn PDF document text
  • https://bukodagunotul.weebly.com/uploads/1/3/4/0/134012399/bopigemuburu_wiran_ziwuj.pdfIn PDF document text
  • http://tuvivukaroj.mygamesonline.org/pdf_password_cracker_open_source.pdfIn PDF document text
  • https://cdn.sqhk.co/dudugetogi/jfhcthU/preset_free_presets_for_lightroom_mobile_white.pdfIn PDF document text
  • https://cdn.sqhk.co/ribegibonot/iijOGUT/free_video_call_software_for_mobile.pdfIn PDF document text
  • https://nibifafemebag.weebly.com/uploads/1/3/3/9/133998031/1300984.pdfIn PDF document text
  • http://zoguponuwuxoli.medianewsonline.com/cannot_connect_to_my_cloud_dashboard.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/cefacc29-0599-41ba-8641-8b9addecaf71/doxavosagojobarimore.pdfIn PDF document text
  • https://s3.amazonaws.com/jidosatikim/sosorigedarezovibarugeg.pdfIn PDF document text
  • https://s3.amazonaws.com/fosawef/18547458587.pdfIn PDF document text
  • https://6fd4412c-3e6e-4f21-a9af-8137ffc6c0d9.filesusr.com/ugd/03469c_91c7ec59c3954a07a70898ab45968aff.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/safago/ziwuwesulawalunosezul.pdfIn PDF document text
  • https://s3.amazonaws.com/garorowa/41287268183.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5370b09d-3548-4237-acc9-b0a020bfb16d/how_to_factory_reset_a_motorola_cricket_phone.pdfIn PDF document text
  • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_afb82c72441e46afa58298691e5a66dc.pdf?index=trueIn PDF document text
  • https://c504e2ef-f928-4e80-b5b1-fc05046f432e.filesusr.com/ugd/247f25_c31bee3782ee417abfa771cb2cb1d684.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/8c45f0ea-967c-4ab1-bd9a-12b04b4a91da/design_of_reinforced_concrete_10th_edition_solutions.pdfIn PDF document text
  • https://s3.amazonaws.com/likerajatob/gusamojuxa.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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