Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• 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.
• Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
  Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
• 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://cctraff.ru/wb?keyword=esign%20pdf%20file In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369502/normal_5f87dd89bbc24.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/31825457340.pdfIn PDF document text
  • https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/gozibonewatuke_pekugujawidep_jijuzotakat_kevatata.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/pdf_to_dwg_online_convertor_free.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/9ba77a23be8.pdfIn PDF document text
  • https://wusinetowaje.weebly.com/uploads/1/3/4/4/134471696/gifigonalawi.pdfIn PDF document text
  • https://s3.amazonaws.com/bupijila/metajugopaxepuwa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371800/normal_5f886c08419ee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387807/normal_5f8e2ece2235e.pdfIn PDF document text
  • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/3376590.pdfIn PDF document text
  • https://s3.amazonaws.com/muvarelo/10215711067.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369760/normal_5f94e22fa07c1.pdfIn PDF document text
  • https://jufukakoxojopop.weebly.com/uploads/1/3/4/3/134317893/f67a6dc3c5.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/solar_system_map.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/antonin_artaud_livros.pdfIn PDF document text
  • https://dowamiwimeguv.weebly.com/uploads/1/3/0/7/130775936/6032552.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/mosutowaniwujusagukaxew.pdfIn PDF document text
  • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/lalulelav-fuvebipepafufa-bijuvakobamijiw-kaxuxofexi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383704/normal_5f8fb0cbe23aa.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/21451903369.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/sandy_cheeks_spongebob_movie.pdfIn PDF document text
  • https://jawokipuroz.weebly.com/uploads/1/3/4/2/134265350/sutezizo.pdfIn PDF document text
  • https://nofizosol.weebly.com/uploads/1/3/4/5/134500220/6923962.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/9439410.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007ad3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007ad3.bin)
  • http://www.daltonmaag.com/In extracted file (font_05_sfnt_off0000ce0c.bin)
  • 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 extracted file (font_00_sfnt_off00006a86.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off00006a86.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00006a86.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00007ad3.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_04_sfnt_off0000b9a3.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_04_sfnt_off0000b9a3.bin)

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