Malicious PDF — malware analysis report

Static analysis result for SHA-256 07816b67fcc02787…

MALICIOUS

PDF

43.7 KB Created: 2020-08-10 23:48:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cde20c6834a37e329bf9f8b562da570f SHA-1: 07c07126250dedd1fdd46eb2a79e893bdc9e1bf4 SHA-256: 07816b67fcc0278796193136d2e56b7817dc71c6dd1981ca5a2541942a18dc83
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The document body, though heavily obfuscated, contains text related to 'Kyocera cutting tools catalog pdf' and includes the primary malicious URL. The presence of numerous external PDF links, including those to Shopify, indicates an attempt to disguise malicious content within a seemingly legitimate context. No scripts were extracted, but the heuristic firings strongly indicate malicious redirection and link farming.

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.com/pify?keyword=kyocera+cutting+tools+catalog+pdf In PDF document text
    • http://files.knife-place.com/uploads/1/3/2/8/132815207/sexukedomini-towub-zutadaxiweb.pdfIn PDF document text
    • http://files.thewholechildmatters.com/uploads/1/3/1/3/131383657/6325289.pdfIn PDF document text
    • http://pujogewed.annshoemaker.com/uploads/1/3/0/7/130775403/dfe45906284db0.pdfIn PDF document text
    • http://files.ggsbbq.com/uploads/1/3/0/7/130775402/jenamavolebusematu.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/1/0437/6579/2929/files/5680965032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nitopufekuriwuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7099/4085/files/61742132603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9798/0056/files/wesavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9901/1738/files/jidaxogofofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66691602327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1270/1860/files/36512932089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/76209997676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1492/1114/files/dawifexedolemem.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_off00006d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0B 5396 bytes
SHA-256: 3cf852bdbca796dcbb0248d6e902b7323477c8f331fa7a7d1304aba7c649f670
font_01_sfnt_off00007f7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7C 10056 bytes
SHA-256: ea864dacbeba36e3e624a2391d8f60719702798fd280d39c3e1e745253fcf4f9

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