Malicious PDF — malware analysis report

Static analysis result for SHA-256 600eeae693e32b39…

MALICIOUS

PDF

41.8 KB Created: 2020-08-24 14:56:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 031592453c34079e7519064606a86370 SHA-1: 66f1120bf2f70532a4db5ef8cee5b796fd4e8433 SHA-256: 600eeae693e32b39116200632a4b3923dfcd7e30664069013fd485b9862168b8
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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/pify?keyword=mckinsey+healthcare+analytics+report In PDF document text
    • http://sonuwa.sonyaparra.com/uploads/1/3/0/7/130775478/burunazabizosukaxiv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6055/7984/files/agatha_christie_and_then_there_was_none.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4332/2016/files/general_anesthesia_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6647/4139/files/wopotajakox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5007/2224/files/99631157983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90262961418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/wukolizazazamabiwoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/10293514533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/zujepulis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1980/4567/files/kuby_immunology_6th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lekerumukin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/xofajewimurirokexumalab.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B1 5192 bytes
SHA-256: 7599449be6f9ef46fbad40079defc5bc490fc029a54930ad2b7d06509f497431
font_01_sfnt_off00007658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7658 10656 bytes
SHA-256: 923b6cea9cd7b7ed88c3b36e007b7957c178ff3b3a17f61947eeed76e00348c4