Malicious PDF — malware analysis report

Static analysis result for SHA-256 0abcd3331615f0a7…

MALICIOUS

PDF

48.4 KB Created: 2020-07-30 13:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2b23a10df5896055d6b19d5bf48c719e SHA-1: 0753e40dae4a89e96562a89991347d91c08b3252 SHA-256: 0abcd3331615f0a7141b4756c576aeae476a5f09bdcb4da6783f31b2df419674
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for SEO link farming. The document body, though heavily obfuscated, suggests a lure related to 'factors influencing demand and supply pdf'. The ML classifier strongly indicates maliciousness, and the heuristics confirm the presence of malicious redirector links and a link farm, suggesting a phishing or malware distribution attempt.

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=factors+influencing+demand+and+supply+pdf In PDF document text
    • http://files.paavoladesign.com/uploads/1/3/1/6/131606201/db1fc2e94f54.pdfIn PDF document text
    • http://files.sctecentralfl.org/uploads/1/3/0/9/130969507/418330dce.pdfIn PDF document text
    • http://files.ipac-victoria.ca/uploads/1/3/1/6/131606953/087d6ca.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/1/0433/4452/7511/files/20559971754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/2077694727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/kazunotadizevene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/kufuzitateninepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1001/files/22555075649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2042/5115/files/69096729702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0070/files/52011040634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/nusafap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3437/7372/files/18235668998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/31357748237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/17726570335.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_off00007f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2A 5416 bytes
SHA-256: 2a79e981a0b3bb973740fa86203142082c356d2f0ce4fb9c46c2452e9ae0d0d0
font_01_sfnt_off0000917e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x917E 10272 bytes
SHA-256: 4371c9cc4c60326e61fab7af41084c6aeaecbe8a2660e3f672e792441b03360f

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