Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b7a4b34f791d5d…

MALICIOUS

PDF

40.7 KB Created: 2020-10-05 12:19:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 119abb12418e3b2d1b6a0623247b8e2e SHA-1: 54a73ea90ddae85e41e5e71b8c6a56d971da8196 SHA-256: 72b7a4b34f791d5d803a16882dea9bbaa6db91eb6daa48c3999d308fb8ae1df5
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://ggtraff.ru/strik?keyword=technical+analysis+of+stock+trends+10th In PDF document text
    • https://site-1036734.mozfiles.com/files/1036734/33849946631.pdfIn PDF document text
    • https://site-1036675.mozfiles.com/files/1036675/sinokewiras.pdfIn PDF document text
    • https://site-1036911.mozfiles.com/files/1036911/mevopogolovolome.pdfIn PDF document text
    • https://site-1044264.mozfiles.com/files/1044264/busobun.pdfIn PDF document text
    • https://site-1036692.mozfiles.com/files/1036692/67429741659.pdfIn PDF document text
    • https://site-1037192.mozfiles.com/files/1037192/febakiza.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/1/0437/3145/2053/files/slant_height_of_a_pentagonal_pyramid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1293/8152/files/80882246778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2994/8572/files/knight_kristen_ashley_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6002/2433/files/active_warrant_search_ga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6533/0850/files/xfinity_tc8305c_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0982/9795/files/grade_5_math_projects_ideas.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_off00005f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8A 5420 bytes
SHA-256: 63381d29d9ffc0cc24e595b20f122ce93f4f54e0c872f1ee029d043e906d1724
font_01_sfnt_off00007202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7202 10536 bytes
SHA-256: 94e04b837f24c585b8fdbe8a59ec1558175b6d709113ab0d50b0a6bb467b853c