Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca68b4cae01f24ff…

MALICIOUS

PDF

45.8 KB Created: 2020-10-09 00:56:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 78bec96c180b110df71839c7278eafaa SHA-1: 60ebdc28654517d0bbd507df70eb603c74fab788 SHA-256: ca68b4cae01f24ff259d51ebdf9749ad9f1a5cb9d982e50191fef9e244a3f01f
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=aboriginal+symbols+and+meanings+pdf In PDF document text
    • https://site-1041859.mozfiles.com/files/1041859/26879078136.pdfIn PDF document text
    • https://site-1037860.mozfiles.com/files/1037860/gosopu.pdfIn PDF document text
    • https://site-1036680.mozfiles.com/files/1036680/97807911458.pdfIn PDF document text
    • https://site-1038864.mozfiles.com/files/1038864/96878547959.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000075c5.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000075c5.bin)
    • https://cdn.shopify.com/s/files/1/0440/4012/6629/files/stardew_valley_marriage_candidates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/youth_track_and_field_clubs_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/927d38a5-d799-479b-ad18-e71031e18096/11368209262.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/889df698-3a3a-45d8-bcb1-e3a185fa214e/80264169303.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dc58a1f-b8aa-4b26-8707-f5501c4f08d5/88888213186.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7f06402-a4c4-4fc5-8929-dcad65b1a9e6/77563477528.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/879ee5d1-3e32-4b98-8189-ed44d645e831/94739088999.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9300f9b6-75bb-428f-8526-30f0b332e255/7394934859.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12278f0a-92d6-4727-8365-528d6b859a81/rizonaxinerize.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3e4c469-45a5-4d64-b43b-89da7496de77/12797451666.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_off000075c5.bin)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C5 5592 bytes
SHA-256: a597cb489619e8fabb443f0f5fb191b2e7c1e50330d538dc35e9dff6118423e1
font_01_sfnt_off000088b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B9 9880 bytes
SHA-256: 48c85a1d9cef22b9cff2e3ebfc7187f04b1c81cb2fcd0a60e429db487255acb8

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