Malicious PDF — malware analysis report

Static analysis result for SHA-256 472202ed06ad0fe7…

MALICIOUS

PDF

41.5 KB Created: 2020-08-28 03:13:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91403bf0bc46ada258509e314c4e22b1 SHA-1: d3400d52060bdeb5b61c2922317fe00b89116b88 SHA-256: 472202ed06ad0fe719d6bedbe35f619f2ecbe03fdf7e98cad9fcde5da05eff2e
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=hole%2527+s+anatomy+and+physiology. The document body, though heavily obfuscated, contains references to the linked content and other URLs, suggesting a link farm or redirection scheme. No scripts were extracted, but the presence of malicious links points to a phishing or redirection attack pattern.

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=hole%2527+s+anatomy+and+physiology In PDF document text
    • http://files.jessakid.com/uploads/1/3/1/4/131483955/dimosadizib.pdfIn PDF document text
    • http://vapisuwab.lowcountryliberals.com/uploads/1/3/1/4/131454526/632b4c9c7f4.pdfIn PDF document text
    • http://guguk.bremertondancecenter.com/uploads/1/3/1/4/131407406/xatakakakedixo.pdfIn PDF document text
    • http://files.rmc1studio.com/uploads/1/3/1/4/131453645/729575.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/1/0432/0762/2824/files/63068747971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7036/5589/files/nuzogagovewakox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1256/2849/files/body_parts_esl_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/certificate_border_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7494/4153/files/android_sqlite_foreign_key_not_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2601/6424/files/tanivaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4681/4374/files/dadodesiferelotawako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/8118/8764/files/apollo_munich_health_wallet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8922/3066/files/corel_draw_portable_x3_64_bit.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 7

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_off000061ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 5376 bytes
SHA-256: 7422cc2b3a5fbd7e71380be95333670670374cab04e2468666bdc9d886215345
font_01_sfnt_off000073fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73FD 10560 bytes
SHA-256: 76349c58ab4addb85fb33a04772ad748d871620aabeeb157e83f5ef4fe67ad47

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