Malicious PDF — malware analysis report

Static analysis result for SHA-256 a675ede23cdf6ba4…

MALICIOUS

PDF

58.6 KB Created: 2020-08-07 15:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69c5912c6bf0f3bab014b06c22bd4eb9 SHA-1: 5bf124708bc91fef26e8915bacbca5b143278bd9 SHA-256: a675ede23cdf6ba48efd15789711a8a345f2affa96e9656c74441d3c8efd7458
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to redirector infrastructure. One prominent URL, https://ttraff.ru/pify?keyword=catabolism+of+heme+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL, suggesting a phishing or scam attempt to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.

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=catabolism+of+heme+pdf In PDF document text
    • http://rudasij.hilaryshomedaycare.com/uploads/1/3/0/8/130814238/xuladuj-xiwofilod.pdfIn PDF document text
    • http://files.sevengatesbirth.com/uploads/1/3/0/8/130874329/0bf8444c06b98.pdfIn PDF document text
    • http://files.dayofgrace.org/uploads/1/3/0/8/130814432/6342674.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/1/0430/4607/6565/files/12988935523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/16797260314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/39446752580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/11316842479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0235/6124/files/bodyboss_method_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91337380597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/jidiwirefibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/67546747438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gaxasukazojolivuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.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 2

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_off0000a6ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6EE 5232 bytes
SHA-256: d039c6c1dec6c5e832bfea9bdaad356cd9232b1863fd823a530d579dfbf9e659
font_01_sfnt_off0000b888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB888 11028 bytes
SHA-256: d788fc6214b619fca9b505920a406362e9fea4aa12216689280a319b1e0d4d7c

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