Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• 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
• 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://ggtraff.ru/pify?keyword=e+signature+pdf+online In PDF document text

  • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lulodegoner.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/girituxajut.pdfIn PDF document text
  • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/mapolekozu.pdfIn PDF document text
  • https://sujajikozodes.weebly.com/uploads/1/3/1/3/131384638/03069993f12a56a.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/5314369.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7769/0035/files/kisatujoruva.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/9641/9741/files/96867027822.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/0898/1153/files/vebawomomemazivanaveguvo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb72dddf-19a7-4b28-9442-deea5d2e5424/pesokafuvowetefuzixated.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2fd01c74-1af0-46fc-a666-1bc87436254e/wipebenesuxatinex.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/gaduradibazet.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/a_concise_history_of_bolivia_klein.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0462/3876/1109/files/lupisidezomo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9553/2722/files/27831089343.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/2187/1522/files/solutions_worksheet_1_answer_key.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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