Malicious PDF — malware analysis report

Static analysis result for SHA-256 810b0a150006f6da…

MALICIOUS

PDF

46.4 KB Created: 2020-08-25 07:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 678a5163b10d68cdc9d89ca38e473638 SHA-1: 6dfd59d7010d10101cf65aade9038ed45938cfc8 SHA-256: 810b0a150006f6da04542d370c8f061a4ad1af88d6e7299bb767848608c8c157
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.cc/pify?keyword=marriage+contract+format'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on Shopify, suggesting a phishing or scam lure. The ML classifier strongly flagged this PDF as malicious.

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://ttraff.cc/pify?keyword=marriage+contract+format In PDF document text
    • http://files.thattallredhead.com/uploads/1/3/1/4/131453194/ac4cab475f.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/1/0428/6591/8118/files/ziniwinavujimugidajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8321/6549/files/77931610227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9347/3947/files/93876455207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4629/6982/files/jegite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8375/0814/files/92539673454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7238/0310/files/karan_arjun_movie_hd_avi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2045/7883/files/attributes_of_god_tozer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/lansdale_reporter_staff.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4136/5922/files/islam_mein_aurat_ke_huqooq.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

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_off00007922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7922 4996 bytes
SHA-256: 407cc7f663236986b90577a749cf72570a12f3e77f0d3cb45e542b5da061d5fc
font_01_sfnt_off00008a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A16 10304 bytes
SHA-256: b1c01ae9fead1ba1885463f617cf8daf00e54c4789f87707b0b1bcaef59a1e19

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