Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d86585aac6800b7…

MALICIOUS

PDF

138.7 KB Created: 2020-10-03 12:29:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 2cb88e537f8da30df5dbe3e1c7ee38b7 SHA-1: d34699c52c0b0613e768b70b1bc8b41032380d86 SHA-256: 5d86585aac6800b7cbfacedfd3d9dd8f8f5403c55486c70d545bed102cab2252
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://gettraff.ru/strik?keyword=free+download+anup+jalota+bhajan+sandhya In PDF document text
    • https://site-1039564.mozfiles.com/files/1039564/nazupigitotopofunura.pdfIn PDF document text
    • https://site-1039444.mozfiles.com/files/1039444/bikenepo.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/1/0483/9741/8645/files/gepuvuxowuzunej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5430/0312/files/24721893595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9813/files/pathfinder_channeling_feats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/3321/5143/files/bose_sounddock_10_update.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/411e7add-85dd-4580-9949-59b451f0d75e/71352626937.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25e306bd-c9c9-4eae-b690-4f91f2b2b44f/87551083602.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19b4ace0-24ed-430d-85e8-ae511bf142c2/namubeluxap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/264f9598-0da3-42f0-9d12-d674a32084c6/wopusop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b136039d-0b85-46fd-b864-ab0f9eefe1ce/genaratas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/843f3139-fdc5-48e3-8243-5f0715f79ff9/buxupotavulawovis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49fe6c7c-6174-42fe-b891-f5fc8ef5641d/77526776147.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_off0001dc19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DC19 5412 bytes
SHA-256: f11897e2da3dac2a2b56b273c8275f0efb0b01c9ccf48f1eea8406a048f524ac
font_01_sfnt_off0001ee8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EE8C 15668 bytes
SHA-256: 1977b4f94c0fc3956cb2d706e8e447be068522b5ebcd3a9a5352fa3fd6745dcc

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