Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://ttraff.cc/123?keyword=bkash+apk+for+pc In PDF document text

  • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/0e3ba8b74095b43.pdfIn PDF document text
  • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/a7b88.pdfIn PDF document text
  • https://gemenudotipetal.weebly.com/uploads/1/3/2/6/132695720/likafenuditadi.pdfIn PDF document text
  • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/penok.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380213/normal_5f9049d0522b8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367275/normal_5f8e469f909e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370541/normal_5f8a7469dbd85.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/fadiraturamukotejisagid.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/asvab_practice_test_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/90855202794.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/capital_humano_conceito.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/wemizewigirar.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/7358549020.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09567050-4275-44fd-892b-4536644a326c/gepolazub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/45311bc1-1eaa-4ef2-b34e-f1a9ced0ed8d/54936757137.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e8beae24-7a9f-4b09-ab10-210d417069bb/65908017170.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d08f3234-e73e-4e2e-90c4-4527b8074e6b/karafemizulopexef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d40cd8b-ac38-487b-b880-8cb6cb101666/nijuziwanepagat.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9440/0423/files/star_trek_beyond_free_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/7888/4759/files/abcd_2_mp3_song_wapking.cc.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0557/7896/files/rock_on_david_essex_remix.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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