Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7f420fd7f95d4d…

MALICIOUS

PDF

39.5 KB Created: 2020-10-06 10:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 048560b5be16bd738430abf7accb8f1c SHA-1: 4d985f8ed3378d4b5e9835c6baef270d440b915d SHA-256: cd7f420fd7f95d4da0d10dd5d5d9def6db1d1e2d55429a2ad857eadcac6bf82e
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://ggtraff.ru/strik?keyword=meca+nz+pdf In PDF document text
    • https://site-1042204.mozfiles.com/files/1042204/damupoboxajawabeviso.pdfIn PDF document text
    • https://site-1037111.mozfiles.com/files/1037111/durefuruxozafazanatale.pdfIn PDF document text
    • https://site-1043939.mozfiles.com/files/1043939/28301214991.pdfIn PDF document text
    • https://site-1038506.mozfiles.com/files/1038506/lojubowezusok.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/1/0501/5889/5254/files/64455579008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/venoxuvumigutimopuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2058/files/islamic_bedtime_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8389/6734/files/how_to_shift_a_table_in_google_docs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1899/3307/files/la_figlia_che_piange_eliot_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1863/5422/files/game_hobo_5_hacked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8643/3435/files/giranepapezezum.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_off000052fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52FB 4900 bytes
SHA-256: 4515e4f63e22cf6a4150a22bff8b6553006c309f26c9341a3fbf9edd726940f9
font_01_sfnt_off000063d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D6 14872 bytes
SHA-256: 1db29fd835eb9e140282c1c0e8551a3a83b2f84237ebeace1fffc105a2edcc45