Malicious PDF — malware analysis report

Static analysis result for SHA-256 76f535c7fd676e9f…

MALICIOUS

PDF

43.2 KB Created: 2020-08-21 00:49:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ebeaf3f6bbca060705df2d02083f81d6 SHA-1: bc5d363a28e4364186b3199e7e62530d072e5157 SHA-256: 76f535c7fd676e9fb7a23ecc7611af68476a949cf4ccae64934d5c52edfef455
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a redirector service that is known to host malicious content. The document body and heuristics indicate a lure for free downloads, likely to distribute malware or conduct phishing. The embedded links are designed to lead users to potentially harmful external sites.

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=vce+designer+free In PDF document text
    • http://palaj.symbolicastrology.net/uploads/1/3/1/4/131407406/722c4759953.pdfIn PDF document text
    • http://files.embraceyouressence.org/uploads/1/3/1/6/131606094/tugimokite.pdfIn PDF document text
    • http://zevur.jesipace-berkeley.com/uploads/1/3/0/8/130813694/8736569.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/1/0430/5544/8213/files/preeclampsia_risk_factors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/7152/2214/files/lofunetilukixidavavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1229/2767/files/start_spreading_the_news_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6225/3978/files/nitiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5511/8501/files/62401670512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1978/7675/files/55442640744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/refosojebuwuferavepuvoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2556/1757/files/jokevitetimuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9479/files/44306682458.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 5

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_off00006d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D19 4912 bytes
SHA-256: 528c92b431fbce2b8442e7baa513dce09177a8d00145230c0a1d70604c074dfe
font_01_sfnt_off00007ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDC 10188 bytes
SHA-256: ee1dc17010ca9360b7a4d615f8d2ea3bda56aa804b4d2419a2e51158ae562e82

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