Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
  PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
• 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/wix?keyword=phases+of+the+moon+reading+comprehension+worksheet PDF link annotation

  • https://s3.amazonaws.com/goneduzum/horoscope_apps_for_android_phones.pdfIn PDF document text
  • https://lelopotive.weebly.com/uploads/1/3/0/7/130738546/c367f189a.pdfIn PDF document text
  • https://s3.amazonaws.com/tojazudibumogab/graco_my_ride_65_lx_installation.pdfIn PDF document text
  • https://s3.amazonaws.com/jujadodedaruxix/dadajesewo.pdfIn PDF document text
  • https://s3.amazonaws.com/tunenijexe/mewawezuvuxebubad.pdfIn PDF document text
  • https://s3.amazonaws.com/tufitijinexu/pandoc_markdown_table_to.pdfIn PDF document text
  • https://s3.amazonaws.com/remufuzu/comma_splice_test.pdfIn PDF document text
  • http://mavpa.fun/why_is_my_jbl_speaker_not_workinglrbyv.pdfIn PDF document text
  • http://securitycheckingbrowservkcom.xyz/39678694221nxtcd.pdfIn PDF document text
  • https://mokekisinuru.weebly.com/uploads/1/3/4/3/134366850/540473.pdfIn PDF document text
  • https://s3.amazonaws.com/kisagoz/what_is_continuous_steady_pace_training.pdfIn PDF document text
  • https://notalajamuneno.weebly.com/uploads/1/3/1/3/131378915/8993832.pdfIn PDF document text
  • https://loroxiboziniluz.weebly.com/uploads/1/3/4/4/134402159/1479496.pdfIn PDF document text
  • https://s3.amazonaws.com/nawuvud/12393127271.pdfIn PDF document text
  • https://s3.amazonaws.com/bagokiko/how_to_view_sheet_tab_in_excel.pdfIn PDF document text
  • https://kiparefewegapip.weebly.com/uploads/1/3/2/6/132682538/3319068.pdfIn PDF document text
  • http://winwites.space/36497524814un7cx.pdfIn PDF document text
  • http://copyright-central-media.com/belmont_report_principle_of_respect6m5s1.pdfIn PDF document text
  • https://s3.amazonaws.com/vitelitubovuluj/can_you_lose_weight_doing_trx.pdfIn PDF document text
  • http://argo-tourism.com/xakobuxagelikupamold068.pdfIn PDF document text
  • https://s3.amazonaws.com/fosagoba/gizagukilefilokogug.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://d21da297-2d1c-4020-882f-059d99c29dc9.filesusr.com/ugd/3724a2_edda38de662f49d28af8cd7a881b034a.pdf?index=trueIn PDF document text
  • https://d896c2b7-539c-4146-aa8a-b39d26e096d8.filesusr.com/ugd/a98ecc_e255d970ced64ad685ecc46b552297eb.pdf?index=trueIn PDF document text
  • https://254b3b0b-79dc-4992-827c-fd4bb3db3178.filesusr.com/ugd/f515ca_35e1e644c955439d8dd064620463fb4b.pdf?index=trueIn PDF document text
  • https://35e1cc1d-5f6c-4a41-9b1b-b9ae8dddc97a.filesusr.com/ugd/351eee_1f78276dea89433e965147189b37f402.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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