Malicious PDF — malware analysis report

Static analysis result for SHA-256 245317c190db4716…

MALICIOUS

PDF

47.1 KB Created: 2020-08-18 21:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85f79633a82474d64d9f47e0f174cb1e SHA-1: fbf223c817c6e4250897c28d3fbe161afa7cc4fe SHA-256: 245317c190db4716f34a07692c6e1aa496928e073d0af042df5bd2df002d582f
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to a medical program agreement form. The primary malicious URL identified is ttraff.cc, which likely serves as a gateway to further malicious content. The presence of many external PDF links, some pointing to Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF.

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.cc/pify?keyword=addyi+rems+program+patient-+provider+agreement+form In PDF document text
    • http://files.carathelifecoach.com/uploads/1/3/1/3/131383977/vepifenijijagi.pdfIn PDF document text
    • http://files.darlfinne.com.au/uploads/1/3/1/4/131437775/ed94e629038.pdfIn PDF document text
    • http://files.cristiansulea.com/uploads/1/3/1/6/131606408/regokimotufatosuz.pdfIn PDF document text
    • http://josowela.oldbaldyhuntclub.com/uploads/1/3/0/7/130775940/kijekomo.pdfIn PDF document text
    • http://files.rone.studio/uploads/1/3/2/3/132303351/pidap-fusukuv.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/1/0433/3545/0774/files/baruxeded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/ctet_answer_key_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/principales_causas_de_la_contaminacion_del_aire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/d_d_5e_oathbreaker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3760/files/zevonerafuwajife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/63143538971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/apc_smart_ups_3000_rack_mount.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/72962957582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9633/2705/files/robonik_biochemistry_analyzer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/starting_a_blog_for_dummies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5431/3122/files/49669858415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/14697781762.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000789c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x789C 5512 bytes
SHA-256: a87bb4b094ee78214b1c167103c92971ea223f3583fa0ddd89bf1f8bfa23b978
font_01_sfnt_off00008b57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B57 10468 bytes
SHA-256: 3b609cb7512a6552b55bc0043f83deed40df3a04af36a17effe7e2a96b380d0a