Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f57d3947a701f63…

MALICIOUS

PDF

38.3 KB Created: 2020-08-18 18:16:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bda0b2852911cb5f8330151bbd265dd SHA-1: aeb2c3608f9f2a8a718e2a978202350f8b9b67ee SHA-256: 7f57d3947a701f63baa6abcde38b01c8e1cfaf667ce2e0e2f417a2561d535647
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a link farm and a redirector. The document body, though obfuscated, contains text suggesting a lure related to 'aunt minnie radiology cases pdf' which aligns with the observed redirector URL. The primary attack pattern involves tricking the user into clicking a link that leads to a malicious site, likely for phishing or malware 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.com/pify?keyword=aunt+minnie+radiology+cases+pdf In PDF document text
    • http://files.summitrootsfarm.co/uploads/1/3/1/4/131453543/6806273.pdfIn PDF document text
    • http://files.athenskidsmart.com/uploads/1/3/0/9/130969751/5336a6e6f9ad.pdfIn PDF document text
    • http://files.studiosfinearts.com/uploads/1/3/2/6/132681204/zizaxovojenanamiliz.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/1/0433/0687/7080/files/dokole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bepojarovizezeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8234/0770/files/temubisevaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7797/3654/files/45183310879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9699/0105/files/24341062579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1625/5645/files/piriformis_muscle_stretcher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6630/2376/files/42375849551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/personal_statement_sample_essays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2418/7549/files/22062477166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2453/files/ziwijotapar.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 8

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_off00005698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5698 5564 bytes
SHA-256: d63b8505eda5d2efb0d806e87ff8cda4b2a485d57125496b2e9cae61262b7182
font_01_sfnt_off00006972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6972 10192 bytes
SHA-256: f483a6186456cbae66aa258f7fb1724949c7f293218053316aede283c9ccec06

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