Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ec4584df928fea…

MALICIOUS

PDF

44.1 KB Created: 2020-10-18 16:46:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-01
MD5: fc8802c4183714b92e8ff0f0d95d6386 SHA-1: 86e26cc022d4d284d117588f2bac4ae5a2cfc1e9 SHA-256: e0ec4584df928fea15c6c9117e8d3369a1a24f7fd22a16cb82d9417791c0d502
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=zoosk+free+code In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f8c13dee0837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369323/normal_5f89a39ebaa59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367273/normal_5f8745ca4f9c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366633/normal_5f873afc5b2f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371005/normal_5f8b5b16ce917.pdfIn PDF document text
    • https://buxivadoga.weebly.com/uploads/1/3/0/7/130740323/1874689.pdfIn PDF document text
    • https://mixorone.weebly.com/uploads/1/3/1/4/131438240/masigofuri.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/6023986.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1392291.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/4984441.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8554420.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006f77.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006f77.bin)
    • https://cdn.shopify.com/s/files/1/0497/3795/7537/files/86556369478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6862/7384/files/novebituf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/7363/3955/files/92310619580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5465/2821/files/mechanical_behavior_of_materials_hosford_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/5489/5782/files/wet_floral_foam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8d98018-30bc-41ec-9545-fc4ac881d4c2/rilalewulilakarogexewoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0537cb9f-d528-48da-b1c6-acadf0853afa/light_em_up_fall_out_boy_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/8448/9145/files/can_bearded_dragons_eat_scrambled_eggs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5145/7946/files/zoxewet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2815/1959/files/xedifalefunulukowudetifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/keworatoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8412/7650/files/14583046460.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 extracted file (font_00_sfnt_off00006f77.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F77 4796 bytes
SHA-256: d535cc1b328ad0fe18ffddd93654adabbaa8ebf2757297637c8bff9d598fb655
font_01_sfnt_off00007fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDB 10376 bytes
SHA-256: 266c2758a493655a9e7c88b8385d7e534dd7617d4344922161b4f5989f553ccd