Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e1bfb11f79e467c…

MALICIOUS

PDF

41.0 KB Created: 2020-10-05 11:18:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-09
MD5: 8ad724494861f14581c6b9a14925b2c6 SHA-1: cade9615303ee9ffd7b8bf73ff39bfb0be9361e8 SHA-256: 5e1bfb11f79e467ca13c8acf354a1fb2dcd0473131bd967b4b54a63eae371ccf
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=kyoto+autumn+colour+report In PDF document text
    • http://files.lisaxing.com/uploads/1/3/0/7/130775244/roravulokerifo_jejefejevug_fozijiseno_ninevikobe.pdfIn PDF document text
    • http://files.klondikecreek.com/uploads/1/3/0/7/130776222/7155571.pdfIn PDF document text
    • http://files.sharonjoys.com/uploads/1/3/0/9/130969592/4529718.pdfIn PDF document text
    • http://files.lvflogreenvalleygardens.com/uploads/1/3/1/8/131872185/wunuxigarazanos-sadofuligale.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000064c1.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000064c1.bin)
    • https://cdn.shopify.com/s/files/1/0437/3735/0296/files/bridgeforth_middle_school_pulaski_tn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/11797061086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6019/8557/files/99104186681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9132/0214/files/11724698861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1011/3188/files/pumpkin_counting_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33f4db3d-cc44-48ef-b026-c02a55930b79/32142524819.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b95bc4df-9700-4eb1-85c8-85935f0717a1/47316194383.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e315a74-e1ec-4de4-8cbf-010896fe2224/jigowobakumujasu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e29d2004-8853-476e-b030-a31015bda22b/88786638444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/779be459-73fb-4dda-afa4-35cbcca563a7/sejasakogozuteneruruz.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_off000064c1.bin)

Related samples 8

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_off000064c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C1 4972 bytes
SHA-256: 988bc6c1bab69a893c6bef1a143ce6a1b78ef942e0265fe9a24e6877954ae4a7
font_01_sfnt_off000075a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A1 9896 bytes
SHA-256: 2e690a19ef72d283cc8bf913a6906b7741fa055269f4feca8335bb5dd2fed748

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