Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d2eba78cfd4cd6…

MALICIOUS

PDF

34.3 KB Created: 2020-08-26 14:10:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 852304ab5c6de6654af6d8cd4cbe5af1 SHA-1: 2920d94e416aadfa3fc562a02180e6a8b2c08bd4 SHA-256: 62d2eba78cfd4cd6b295041dc6a19e941b26fe2fff96e4ce7700343513d55301
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing attempt disguised as free content.

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=ever+be+chords+g In PDF document text
    • http://files.biondoartdesign.com/uploads/1/3/2/3/132302894/104164.pdfIn PDF document text
    • http://files.tomdenbigh.co.uk/uploads/1/3/1/6/131636562/diridezepadelozexedu.pdfIn PDF document text
    • http://files.latechcrrc.org/uploads/1/3/1/4/131407493/wikaribumuvila-vesadoneji-wulimelilaj-motaxozajazu.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/1/0452/0011/3813/files/roxeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/91417400612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/moxudenolaruxorurafugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4735/2480/files/gufujoxuwife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3020/files/17355187952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7451/9191/files/dedirowerakojimotonuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4339/6506/files/foxoxabimikol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4016/files/farmers_almanac_2019_midwest_planting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/fufowowepirasaveruwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/26234075329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/95742655135.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 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_off00004c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C1F 5116 bytes
SHA-256: 0693ab1da916f9084560c8b977cccaa6b5cbd71370ab6dfea5df9fde78ef9478
font_01_sfnt_off00005d7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7F 9052 bytes
SHA-256: 83f3d7119f8b0f91486f0986fec637448f4300416d2e6e78aae6150241a31080

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