Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d884e9bb9edcf70…

MALICIOUS

PDF

45.8 KB Created: 2020-10-09 12:47:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 534bc5284861181df5b193a621310759 SHA-1: 2df7bb5f602b95112b202effbfb42ea47cc7afca SHA-256: 5d884e9bb9edcf70bc73e2e7f979c2766a9067922a25b38f47dbadb79761d22b
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://cctraff.ru/strik?keyword=afk+arena+chest+of+wishes+2020 In 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/1/0439/5296/3742/files/zukodumekogajoliwefedafup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8462/7614/files/descargar_psiphon_handler_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7249/2198/files/benolaxodoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6531/0374/files/4295382421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6473/3079/files/josquin_des_prez_born.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67373848-b096-4f67-84f5-cee5fb9c999d/supasuxajanenem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13577f27-0005-45f8-9f87-c2f344884c44/xuwiguxunujinovasu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/958b926d-5705-4750-af4b-ffb9925fe820/butiruvazutapowug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87176607-db93-4ac3-81d1-f74686e57997/55080599878.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6270290b-abae-476a-b33e-ee2621aa6784/44129290408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5552/1695/files/74260717512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/nibotapux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5095/6960/files/tozubezefavadax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8622/4791/files/to_kill_a_mockingbird_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9112/4131/files/google_sites_iframe.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_off00006b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0A 5356 bytes
SHA-256: f4bdbff9195e9815a4d010021c4aee1d7102d4c3a65a298869948e7bb3361f08
font_01_sfnt_off00007d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D54 14552 bytes
SHA-256: edd9c3fb3db93a53ef88a8e27f93888176431a4900e14f79595750ac5afd5fbb

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