Malicious PDF — malware analysis report

Static analysis result for SHA-256 eafdc81e32a93dc1…

MALICIOUS

PDF

35.3 KB Created: 2020-08-20 04:08:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b362c0f06b00dc39724110f9aaf11e7 SHA-1: c04900a18e17224936c36c16b33ee03bc6a03e66 SHA-256: eafdc81e32a93dc196b1d3862e792ab1bd3c65324a0e4ee8f3596db39004e259
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links, one of which, 'https://ttraff.cc/pify?keyword=philips+respironics+bipap+s%252F+t+manual', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Philips respironics bipap s/t manual' and references the wkhtmltopdf tool, suggesting a lure to disguise malicious content. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious 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.cc/pify?keyword=philips+respironics+bipap+s%252F+t+manual In PDF document text
    • http://taras.wctherapygroup.com/uploads/1/3/2/6/132696056/tijozotolamawot-raniveruv-rupefewi.pdfIn PDF document text
    • http://katid.letthemlearnllc.com/uploads/1/3/0/9/130969723/retava_pefiv_daroropami.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/1/0432/5618/4992/files/77848899628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8100/6244/files/medical_work_experience_certificate_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89647405972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/facial_vascular_malformation_icd_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/under_maintenance_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/proyecto_de_investigacion_sobre_el_bullying_escolar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0745/1029/files/catalogue_schneider_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4695/1319/files/tb12_nutrition_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/7330/0632/files/joint_probability_distribution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2669/2771/files/82517052623.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_off00004ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CED 5352 bytes
SHA-256: 30adeb2c79c2c8c52c41fcd288007ac15b991e7f8b272f903a82b8f9dbab9cbf
font_01_sfnt_off00005ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE6 9888 bytes
SHA-256: 6df1e928ab3b5d602584539bb5b4ccb6b20753bae597716ec00a485226584d02

Open this report in the interactive analyzer, or submit your own file for analysis.