Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e9e58b2514ce11…

MALICIOUS

PDF

41.0 KB Created: 2020-10-27 20:13:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 1fe4b56b9f768786bdec9880dfd10a4a SHA-1: 1bafef34f196ff3f810d47f404fb77c4812203c0 SHA-256: d3e9e58b2514ce111d960efa18d6fec65f5c5b2561a43f93f050515c4f077c06
194 Risk Score

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://cctraff.ru/123?keyword=what+is+an+instrument+in+research In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387701/normal_5f8cecd7595dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374366/normal_5f96a60363d06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390374/normal_5f91f32709f74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368222/normal_5f8f538277175.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411511/normal_5f96ceb6d0a1b.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/noropemoku.pdfIn PDF document text
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/3702144.pdfIn PDF document text
    • https://kagilovudugavap.weebly.com/uploads/1/3/1/1/131164538/4664983.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393026/normal_5f912b6b36446.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371272/normal_5f89d0e459b5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384836/normal_5f9232b54d384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_5f9207c4ee4d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375531/normal_5f8ddfc8f2138.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383470/normal_5f8bed9a19c20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374207/normal_5f8c2ad1a317d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392667/normal_5f9075162c12b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375541/normal_5f9339af672cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410186/normal_5f9521ccf0b0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369919/normal_5f8def629589e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/sojebelevenex/vesobuxagos.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/pellegrino_artusi_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/analytical_philosophy.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54C5 4792 bytes
SHA-256: 7ed0d8cfe7d52b3cb9f965c102532c02c1a4e36e93b346fc1626cbc32911de4f
font_01_sfnt_off000064d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D9 10500 bytes
SHA-256: 35bd250ed55d312b751f8205958855d79ef381ec9eca11fc0e5cca39190d3690
font_02_sfnt_off00008881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8881 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e