Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2b7448dc4cbef1…

MALICIOUS

PDF

39.6 KB Created: 2020-10-09 03:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: cedd42ddb3ee9f68a963bfb3521d317d SHA-1: 090ec9c9c20e58668133138fe4d4ca795d9faf61 SHA-256: af2b7448dc4cbef112ce992672e54e192bddc5143f96d0f831eb7a61ed46024f
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=yaris+2007+workshop+manual In PDF document text
    • http://gotuw.ananyaaesthetics.com/uploads/1/3/1/4/131406258/xixujalutoxakosa.pdfIn PDF document text
    • http://files.everydaytechnologysolutions.org/uploads/1/3/1/3/131378816/zosajagavud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4faef74c-5d26-42ac-9a38-6cbd999f010e/67460517195.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/496ed1e8-8034-4833-8a44-508538113559/tufojupodotemasubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf079f0b-0b96-40ce-b12b-0d5b41918c10/49849094292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8861/8669/files/opaa_food_management_neosho_mo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3901/files/skyrim_the_whispering_door_good.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5362/0644/files/xitexolofotezoxanewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8091/4846/files/global_citizen_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0665/5136/files/q_es_la_morfologia.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_off00005be9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE9 5532 bytes
SHA-256: 24ec4e343ce9002ed1ca0d1147254841d86c2e5571313b8027928848f0121cb6
font_01_sfnt_off00006ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA8 10240 bytes
SHA-256: 0427ee90c9ed80f3cefdbc4daafc017f1fa16ae8c307f832cab4df3144eda811