Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://jumiwimov.ru/award?keyword=free+download+arabya+rajani+bengali+pdf PDF link annotation

  • http://copyright-central-media.com/82703912422pml41.pdfIn PDF document text
  • http://autocredit.moscow/96543252186in4b1.pdfIn PDF document text
  • http://lozepamubi.iblogger.org/42801610628.pdfIn PDF document text
  • http://kojewotezigu.iblogger.org/sinopsis_del_libro_el_juego_de_la_vida_y_como_jugarlo.pdfIn PDF document text
  • http://drilltech.info/topup_africa_app_download2d73h.pdfIn PDF document text
  • http://goods-amzon.com/10017458887vcyun.pdfIn PDF document text
  • http://eurosett.net/retowasot44zli.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • http://bogazukutij.rf.gd/mentalist_season_2_subtitles_english.pdfIn PDF document text
  • https://s3.amazonaws.com/jiwisi/hyderabad_pitch_report_ipl_2017.pdfIn PDF document text
  • https://s3.amazonaws.com/puretulenuza/latest_android_version_for_samsung_j7.pdfIn PDF document text
  • https://s3.amazonaws.com/rodiligarexo/betaje.pdfIn PDF document text
  • https://5c817321-7c0c-448b-959d-deb1da9fd788.filesusr.com/ugd/19103d_31bc6eaafaec443db59647b1548253e1.pdf?index=trueIn PDF document text
  • https://f395d2f2-f939-483b-815f-81062d4747ff.filesusr.com/ugd/be2697_81898af13b6c43348b89941f13aebda6.pdf?index=trueIn PDF document text
  • http://tudifilik.rf.gd/agataliko_nfufu_video.pdfIn PDF document text
  • https://s3.amazonaws.com/fowikorejodi/cps_online_reporting_form.pdfIn PDF document text
  • https://s3.amazonaws.com/xowasosuf/hyperlink_to_hidden_sheet_excel_2016.pdfIn PDF document text
  • https://s3.amazonaws.com/niwotipugonuvoz/kannada_film_ambarisha_songs_free.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
  • https://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
  • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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