Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3941ca8995c8d7…

MALICIOUS

PDF

73.7 KB Created: 2020-10-03 17:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 94059cedd6bf55b0a5ee3da6d4540811 SHA-1: 47e6e0d54d36e030a1d2f31a2c5fd08f174cfacc SHA-256: 0d3941ca8995c8d73c856c3b60390984f08910565c730b308e62f1ba64a505ad
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://cctraff.ru/strik?keyword=la+danza+de+la+muerte+stephen+king+p In 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/1/0476/6924/8166/files/dupaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/sebusanal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6160/8347/files/bohemian_rhapsody_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2820/3678/files/86963884411.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85c0f108-4624-40c1-907c-e88ca2511a91/45727582254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/28768755603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4485/5193/files/mastering_the_art_of_calligraphy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8767/5036/files/kobijuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7273/1801/files/why_do_plants_need_sunlight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6441/7694/files/50536856351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2832/7831/files/74708054168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8846/5051/files/xusofesuvumavek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1526/1338/files/65709554407.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_off0000e107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE107 5428 bytes
SHA-256: cad3c77702838b2c46acbf8566c3cc501b391762dc2d72be3c6c266eb5804515
font_01_sfnt_off0000f35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF35C 11304 bytes
SHA-256: bbe44713c15dfb2c924988106311271e5d28059e6d3f999eb06a5b07f5c0c5bf