Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2dd15ad0bb2ca8…

MALICIOUS

PDF

44.8 KB Created: 2020-10-12 06:03:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 1249668f68c54ecf605e6bf379429a2f SHA-1: 21cef672ce3e7db9964de3e22dd188c9fd10c2ca SHA-256: af2dd15ad0bb2ca862b895bb03738b5b5912a2b31457fb0d802021684285e533
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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
  • 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=carla+brizuela+shah In PDF document text
    • https://site-1037071.mozfiles.com/files/1037071/janonozutudujema.pdfIn PDF document text
    • https://site-1044264.mozfiles.com/files/1044264/wosamowa.pdfIn PDF document text
    • https://site-1043456.mozfiles.com/files/1043456/xejoxenemew.pdfIn PDF document text
    • https://site-1040135.mozfiles.com/files/1040135/63204471759.pdfIn PDF document text
    • https://site-1036879.mozfiles.com/files/1036879/76915853002.pdfIn PDF document text
    • https://site-1037184.mozfiles.com/files/1037184/valelewalolojadubozupoget.pdfIn PDF document text
    • https://site-1036635.mozfiles.com/files/1036635/18738423766.pdfIn PDF document text
    • https://site-1036699.mozfiles.com/files/1036699/rerofoxugowinew.pdfIn PDF document text
    • https://site-1039783.mozfiles.com/files/1039783/45436126424.pdfIn PDF document text
    • https://site-1041082.mozfiles.com/files/1041082/36946201680.pdfIn PDF document text
    • https://site-1036811.mozfiles.com/files/1036811/5825789415.pdfIn PDF document text
    • https://site-1036946.mozfiles.com/files/1036946/zatitezimotipexadadox.pdfIn PDF document text
    • https://site-1048166.mozfiles.com/files/1048166/1711217825.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/1/0431/4729/6924/files/machine_design_an_integrated_approach_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/fopejiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4230/2873/files/mijevoxazoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6276/3425/files/basics_english_grammar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3450/4089/files/oil_leak_repair_cost_mini_cooper.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_off000071f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F7 4868 bytes
SHA-256: 4315b562c1a0ecc28850399abce5c97ac27e2b8d1d78915cd7b48ec2771f708a
font_01_sfnt_off0000827d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827D 10684 bytes
SHA-256: b4f35cb5c167d532ab72840ab7df377abef928e0ecde63691c4829c4fed94b5e

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