Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7c592c9ae73e68d…

MALICIOUS

PDF

42.7 KB Created: 2020-08-27 20:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30a2ae8d75eeab8b02bb34de1563ccef SHA-1: 8083e485884612602d3503cd5fdf517e150b3d5b SHA-256: c7c592c9ae73e68d7663aaf9f12eadd16c2513ac5482aea534b9c1d30288aa8c
194 Risk Score

Malware Insights

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

The PDF document was flagged as malicious by an ML classifier and contains a significant number of embedded links. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which likely serves to obscure the ultimate destination of the malicious payload. Another critical heuristic indicates a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to leverage legitimate platforms for distribution.

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=les+caves+du+vatican+lafcadio In PDF document text
    • http://files.glassicalcreations.org/uploads/1/3/0/7/130740165/607003.pdfIn PDF document text
    • http://kugeto.uvcoolme.com/uploads/1/3/2/6/132681352/3656176.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/1/0435/4713/2063/files/63737641646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/celery_juice_medical_medium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/xupesemeralu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/masif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6181/0076/files/libro_aura_para_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/19664213956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4103/7208/files/algebra_formulas_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8145/8069/files/koxilevubajelodukira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6331/1513/files/integration_area_under_curve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/449866329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/0144/7322/files/jifozutibibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4936/9252/files/70549847183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6953/files/12632910704.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 1

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_off00006538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6538 4920 bytes
SHA-256: af9edeba28706e400e99007be5d5115629ae01dd156e025b48830dde9156d716
font_01_sfnt_off0000760b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760B 12356 bytes
SHA-256: 302a72c4724cb3bc1dd2e290e759cb171d9136e5605387897b88c7cd8cae34f3

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