Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://ttraff.me/pify?keyword=aplikasi+chew+wga+0.+9 In PDF document text

  • http://www.opentle.orgIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_46ffed815959402a96d0ae1f5e3eee2a.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/865d50_9a609f78112e4f398d16ec66a712c593.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_6a002341c7854b5e9ed481ca12bec94e.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_680cec348eef439dabd0a506550f8eb2.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/90423f_278b65eb81e644edad4850609d7c66f4.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/271e65_c42ba69b96b840f9a8ec47cf07c27dbf.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/921909_8e39c6694f374f1e90f691d84ad6b9ae.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/0d2908_635968c9b6f741c28e15d3d2f554da36.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/865d50_41baea7c849647c295f4c41d777c24da.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/1a89c8_64a899491c75490ab3842531701b585e.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/c7ef1a_afcdc0c0a0e246a4929ab8b5ba3c7791.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/de3d83_86abb369a9c6404089f8d76a1c1bda97.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/f09a9d_f2e7b29e6f4f4955bd91f75361f1b223.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_f28915aefff245bcae49073376a60597.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/a31856_0d7e9871435e4dc3b9262e96fce6ce4f.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/269bb8_f54acd4574534dfda050e1950aa3ea7e.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_52b1f7723aae4e51b8b7a0f5db87dec4.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/eda9ba_5f557f57c6684f7285f0c044cda009d8.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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