Malicious PDF — malware analysis report

Heuristics 5

• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 2 image(s), only 2 text block(s), carries a click-outward action, and is only 25 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• Image-only PDF lure with a single link to a non-reputable host medium PDF_IMAGE_LURE_NONREPUTABLE_LINK
  PDF is image-heavy with little real text and its only clickable action is a single external link to a host that is not known-good. This is the canonical malspam carrier shape — a screenshot-like 'click to view' page whose sole purpose is to funnel the victim to one redirect/landing URL on a compromised or throwaway domain. Flagged suspicious rather than malicious because the link alone (no shortener / typosquat / brand path) is the only corroborator beyond the image lure.
• 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://tixuvezobovum.binonelola.com/988651973153824?tibidelejewepuzuzasonezabidilivagivovewesugibejerirelivuvafifowowuvezimiziwitewixumadisokixidegozixiderukixadajageviwunevavozexitibazevisorif=pibobudimulajuwezosogaxulewepezivufewaderulopugebevakawurejezubil&utm_kwd=antiterrorism+level+1+post+test+answers&diwemiridopapomofukavezolarimuzesusowebadivotirumav=bifaxajasuwuwulasarinedabidoxamawegodorojabowegetoxobebuvumoweb In PDF document text

  • https://tixuvezobovum.binonelola.com/988651973153824?tibidelejewepuzuzasonezabidilivagivovewesugibejerirelivuvafifowowuvezimiziwitewixumadisokixidegozixiderukixadajageviwunevavozexitibazevisorif=pibobudimulajuwezosogaxulewepezivufewaderulopugebevakawurejezubil&utm_kwd=antiterrorism+level+1+post+testIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://ns.adobe.com/iX/1.0/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://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text

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