Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d867de0a34ad7f5…

MALICIOUS

PDF

43.4 KB Created: 2020-09-30 03:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 729d423f9c7d70458e54548ad909deb2 SHA-1: 3e63039796021aedbf69ab22a358f6326b6868d3 SHA-256: 5d867de0a34ad7f5b936234bdf82ad7ba6091ac8fd395959b91af40bfd9cad22
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://ggtraff.ru/strik?keyword=convert+scanned+pdf+to+word+i+love+pdf In 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/086ea921-00fe-44a8-9362-0593a50630c5/77618716543.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c669f728-0db7-41bf-bdb7-a1f380ec102c/59686712793.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1811722-69dd-4b29-8549-8155c97cde2a/lenotulomaviguwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f26ec99-1a37-4c6a-9dfe-a048b0ad5bc1/dikukosurazonewesugutu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8878b03b-660a-4345-8321-269aadcff354/39975285906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2403/9592/files/lefam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/wuravasazadunilile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e381d0c7-42f5-43b3-8454-bf0d3abd4e3c/29900650168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b5c8988-83cb-4a1c-bc19-1abf03cd473f/86511742895.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64754820-63d3-4b02-8a2f-9a6379ae787b/posoramukulif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8263aed-f5bf-4fa6-b9a2-c704b39b2498/96388260515.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4955ed53-4efc-40dd-bd53-8a998f0b15cd/69479200476.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_off00006ca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA0 5204 bytes
SHA-256: 5f8d8a024f929264a37600b42cc997705563c11bccdefa82793a71aa1c80380d
font_01_sfnt_off00007e7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7A 10148 bytes
SHA-256: f2c1d163ae562559a861d4a871a78ccb7f2a14e7227ffd2ed426319ac374a709

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