Malicious PDF — malware analysis report

Static analysis result for SHA-256 546c785d079ba9c3…

MALICIOUS

PDF

43.7 KB Created: 2020-08-05 13:18:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3108f3ec93e774ec74f136794ac8dc7c SHA-1: 17bcee2ba0a2485fab7200ff72644987749bf176 SHA-256: 546c785d079ba9c3e25fc19bc7c54593f68317095e81b3cfd3c0e12fcfaa39b8
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.com/pify?keyword=acoustic+guitar+chords+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to disguise malicious activity. The presence of numerous other links to Shopify-hosted PDFs indicates a link farm strategy, likely to improve search engine ranking for malicious content. 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.com/pify?keyword=acoustic+guitar+chords+pdf In PDF document text
    • http://files.kvrclub.com/uploads/1/3/0/7/130775940/jasedotajifu-tupuke-patawuboro.pdfIn PDF document text
    • http://files.tilliesnevada.com/uploads/1/3/1/3/131379612/xapixivote-pipugu-neruxesivalu-wifuf.pdfIn PDF document text
    • http://files.approachapparel.com/uploads/1/3/1/3/131383664/8009279.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/1/0436/1761/6034/files/36096859779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/sototilamajesezirezokujoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2117/1864/files/raxalavemadedevizew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/tatalaksana_keratosis_seboroik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/repabodeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/50099262073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0159/3507/files/17609259265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4016/1435/files/3035381440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8062/0963/files/vededijigegimiluvokosetix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4361/1036/files/2894097906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9563/7659/files/suxerudadugurejalepoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/bovivikujawebab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/14731154302.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 8

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_off00006cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC5 5372 bytes
SHA-256: a05602a154040cd6fe57b3627578cd7110d7d3ac5b16c11993302c30568c37ad
font_01_sfnt_off00007f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0A 10120 bytes
SHA-256: c914a8ab47932b06414502eae2d9ae42ce8d8fda9ca10e56cdbec1fd95946884

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