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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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.link/123?keyword=hiperplasia+prostatica+benigna+diagnostico+pdf In PDF document text

  • https://bizalaso.weebly.com/uploads/1/3/4/4/134443832/digajufivimux.pdfIn PDF document text
  • https://kebakiwaranug.weebly.com/uploads/1/3/4/3/134317860/7846889.pdfIn PDF document text
  • https://dopuxaponaxu.weebly.com/uploads/1/3/2/6/132695391/e679d1802a7.pdfIn PDF document text
  • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/nakifoxozubu_wekuwa.pdfIn PDF document text
  • https://razezoxuwen.weebly.com/uploads/1/3/1/4/131453099/9705341.pdfIn PDF document text
  • https://welavofewefose.weebly.com/uploads/1/3/0/8/130813025/fowafibetu-mewubok-nonokalegunug-nosili.pdfIn PDF document text
  • https://bovexojegej.weebly.com/uploads/1/3/4/4/134481742/933bc1.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000073df.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000073df.bin)
  • https://cdn.shopify.com/s/files/1/0466/5281/7573/files/ap_ysr_rythu_bharosa_beneficiary_list.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0396/9173/files/13512572465.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/6845/9670/files/filetype_python_tutorial.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/9742/7619/files/45602270274.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9797/2135/files/14903160324.pdfIn PDF document text
  • https://s3.amazonaws.com/zufaxepixiguxax/arm_curl_test.pdfIn PDF document text
  • https://s3.amazonaws.com/jepinebawo/funny_drama_script_in_hindi.pdfIn PDF document text
  • https://s3.amazonaws.com/bojafazes/catalogo_pompe_caprari.pdfIn macro / runtime command snippet
  • https://s3.amazonaws.com/fibesezati/vinarexejed.pdfIn macro / runtime command snippet
  • https://s3.amazonaws.com/henghuili-files/93071167754.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/4034/8586/files/definicion_de_comportamiento_segun_autores.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/9996/2024/files/lyrics_to_ill_fly_away.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/6445/5079/files/mangacan_apk_pro_v4.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://s3.amazonaws.com/jepinebawo/funny_dramIn macro / runtime command snippet
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off000073df.bin)

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