Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0c487b5cdac5a27…

MALICIOUS

PDF

46.2 KB Created: 2020-08-04 18:00:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0cb72a7b3ddaa4a12d00802af56d7217 SHA-1: 907d10390b49a3a9a78530d7f8baa4a51dda7c64 SHA-256: d0c487b5cdac5a27a783190373b41a2901d6ac7fdf8e01ef10bf84c9e9031906
194 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. It also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.ru/pify?keyword=an%25C3%25A1lise+multivariada+de+dados+hair+2020+pdf, which is likely used to redirect users to a malicious site. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

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.ru/pify?keyword=an%25C3%25A1lise+multivariada+de+dados+hair+2020+pdf In PDF document text
    • http://files.hazzardcountygarage.com/uploads/1/3/2/8/132814239/kojegog_kipovomuluba.pdfIn PDF document text
    • http://files.charlesheinerfiction.com/uploads/1/3/0/7/130740563/togexusus_wapinada_zawagasodufe_vixobuge.pdfIn PDF document text
    • http://files.brianworthmann.com/uploads/1/3/0/7/130776509/gifuwom-ruvuf-roruzatadane-vokuwupunikopuk.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/1/0432/6886/6212/files/48111806412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/81197208673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/55408601894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6977/files/5670349601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/69917787866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1848/5923/files/zilanolumulewif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5732/3925/files/62045868156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/85577281623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1563/files/85122765460.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 5

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_off00006bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB3 5836 bytes
SHA-256: bc341ae204bdea5a7be72277b49114d2a1e2667f6741960df91a7bf4273cbeac
font_01_sfnt_off00007ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE3 14524 bytes
SHA-256: 4dd66385674553a0d08d472de9dc24c8f82c1d1d34977968530151f9fa88a2c6

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