Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f05733870e0aef…

MALICIOUS

PDF

44.1 KB Created: 2020-08-13 08:53:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddacb6dde41f054722a1f5cfd086c270 SHA-1: e1fddc32cad7ca67ad35273ad461586e8f9b7818 SHA-256: 72f05733870e0aef5ed826e2f0566cda4a3b985439ad19802dd4ba4ccb5f711a
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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/wb?keyword=neurodinamia%20para%20nervio%20ciatico%20pdf In PDF document text
    • http://files.childrensmarketatthemill.com/uploads/1/3/1/3/131382808/sufevibunawo-vebakerefawewuz.pdfIn PDF document text
    • http://files.guyingram.com/uploads/1/3/2/6/132681596/3295852.pdfIn PDF document text
    • http://files.patrickduddy.com/uploads/1/3/2/6/132682970/kukiz.pdfIn PDF document text
    • http://bisewazu.southamboyparade.com/uploads/1/3/2/7/132741555/1296389.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/1/0428/9835/8432/files/23158701460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3615/5809/files/drug_resistant_malaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2132/6742/files/88296025496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/5039447054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5215/files/18903760678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3903/8359/files/kaduzikokovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2737/9877/files/toxipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/86376045090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/90622489163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/7806151601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9644/8917/files/sifofire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/pugisolovumiwitinokigowid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/zuxatavuwawidivewimunipad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3955/4727/files/bcg_matrix_notes.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_off00006ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD0 5120 bytes
SHA-256: f45fd9ce132a8fd6777b207cca7f825ba1b3b675e5c939856168b98275daa8c0
font_01_sfnt_off00007c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C33 11576 bytes
SHA-256: d7e1a9aee591aad0f0fcfec02ef66b044c054213c97b3e60f2e6c42780b518d5

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