Malicious PDF — malware analysis report

Static analysis result for SHA-256 232efb995e1d7d89…

MALICIOUS

PDF

40.4 KB Created: 2020-08-28 07:59:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b833a9af8419c46890d7817b0fb2955 SHA-1: f2cedd2e0890cefbb2e156645ac4d30958d6b64b SHA-256: 232efb995e1d7d8953bd6db1c605b58a5b2451f59bc0d920fed66e4d79920f5d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'kawasaki repair manual free download'. This suggests a phishing or scam attempt, likely leading to further malicious content or malware download. No scripts were extracted from this sample.

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=kawasaki+repair+manual+free+download In PDF document text
    • http://dujus.balannz.com/uploads/1/3/2/8/132814930/2f9e93925d0b5e.pdfIn PDF document text
    • http://files.waialuabulldogs.com/uploads/1/3/1/0/131070289/kukavumisununik.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/1/0431/6420/5216/files/31906881314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4848/5535/files/american_pie_5_fzmovies._net.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2433/4496/files/xapamon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1104/6561/files/getupunex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4996/5985/files/24070857845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6706/1910/files/page_fault_in_non_paged_area.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/retinoblastoma_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2602/1527/files/24875828397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9228/5342/files/58724071241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7759/9383/files/40105176806.pdfIn PDF document text
    • https://medlineplus.gov/kawasakidisease.htmlIn 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_off00006052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6052 5312 bytes
SHA-256: 5345cb1b0baab9ae64bfed4d3f6039b6fd2fdcef6c5fce426257ac9eb2b6c053
font_01_sfnt_off0000725e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725E 10108 bytes
SHA-256: 0ae7b694f30a800eee9c54f7c5b0ba1aa6761f856ec8b67a8837b5353b1bec44

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