Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d925463f000efe0…

MALICIOUS

PDF

45.2 KB Created: 2020-08-08 15:49:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eab31b4c6a30c0e144d0a87e6ab7754d SHA-1: 014d322117e8454ac04933267aaf945d1b0951a5 SHA-256: 2d925463f000efe0feada8aca01f3e48bc4227150c313bf0f18f47399bea313a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though obfuscated, contains the URL that is also present in the heuristic firing. This suggests the PDF is designed to lure users into clicking malicious links, likely leading to further compromise.

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=integers+adding+and+subtracting+worksheet+pdf In PDF document text
    • http://files.marmiger.com/uploads/1/3/1/3/131379042/bemaz-rukipopavoju-favoxiji.pdfIn PDF document text
    • http://files.darrencormier.com/uploads/1/3/1/3/131380308/0f79481505b.pdfIn PDF document text
    • http://files.magiqatlas.com/uploads/1/3/0/8/130814513/zivatemurijupizowigi.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/1/0430/6753/9605/files/how_do_i_reset_a_github_repository.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3358/4028/files/dafoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3806/5308/files/42253592072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/sawabulabopofegipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0152/0023/files/zusetonumilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4189/1238/files/xedorujago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/rumivolaraledomodopug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/nazulibarigano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2373/6725/files/89184771447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3669/files/toziliro.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_off000068e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E4 5620 bytes
SHA-256: 39d57b360bf1842d95afd31d4344301cd2f789029713fb1ba9b90f257ad6a5ae
font_01_sfnt_off00007c11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C11 13684 bytes
SHA-256: 0e734ca3c297443a290b7a9842ca99d7d315bf91127875a956486ea6889ccdf3

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