Malicious PDF — malware analysis report

Static analysis result for SHA-256 9216fb7c13faa131…

MALICIOUS

PDF

40.9 KB Created: 2020-08-19 06:22:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f5ca627bc9f7166b9c64325ac8266b4 SHA-1: feeb8da9e6f735c137f8adf75522f13ad71cb37f SHA-256: 9216fb7c13faa131d819f7a14bcb99008d7f943fc8c1a5e5265691c1294d9882
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=graph+theory+multiple+choice+questions+and+answers'. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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=graph+theory+multiple+choice+questions+and+answers In PDF document text
    • http://files.gilfordgotlunch.com/uploads/1/3/2/6/132681513/0d31e607c67.pdfIn PDF document text
    • http://tajedo.heartsofhorsehaven.org/uploads/1/3/2/8/132814838/misir.pdfIn PDF document text
    • http://files.orendagametables.org/uploads/1/3/1/3/131383380/lafalofuvixal_nofedikomamorik_kenalisedavur_jagepakikog.pdfIn PDF document text
    • http://files.millseatonpublic.com.au/uploads/1/3/1/8/131856146/zobopitolepaladegu.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/1/0430/5122/1146/files/riroges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/gimuboviranotunux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/fannie_mae_loan_guidelines_for_investment_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/pig_latin_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2250/files/2020_calendar_monthly_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4567/3377/files/john_deere_425_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/86173892511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6713/6413/files/msds_safety_data_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/17343969291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2056/2077/files/lagun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1269/9798/files/58560710147.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 4

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_off00006127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6127 5664 bytes
SHA-256: ef09939fc8526c6b01b3a9dad4549af81aa490a38f2f7abaef3f3c415400a683
font_01_sfnt_off00007461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7461 9964 bytes
SHA-256: ea5beaf8f10c6599abb2d3f941577302ebe55d4dc575a9a8deaf092c399c9dfe

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