Malicious PDF — malware analysis report

Static analysis result for SHA-256 220051022508aac1…

MALICIOUS

PDF

47.3 KB Created: 2020-08-07 19:13:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce2091e337e2cfdba2de09676ef5abbf SHA-1: 2090737b6d6b4b563a1f6c970338bcf96dc79769 SHA-256: 220051022508aac193b869bdce1c6a58d79c8c09cb64e7a5b13d6275b9661746
194 Risk Score

Malware Insights

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

This PDF document contains a link farm and redirects users to a malicious URL, likely for phishing or malware distribution. The embedded content suggests a lure related to 'Ansys workbench 15 tutorial pdf', aiming to trick users into clicking the malicious link. The ML classifier strongly indicates 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.com/pify?keyword=ansys+workbench+15+tutorial+pdf In PDF document text
    • http://files.thesyncretistrealm.com/uploads/1/3/2/6/132682124/d2880390ec.pdfIn PDF document text
    • http://files.mayamuir.com/uploads/1/3/1/4/131437385/nixexiso.pdfIn PDF document text
    • http://files.foolsandhorses.ca/uploads/1/3/1/6/131606222/zusamewiladexemope.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/1/0435/4015/2479/files/buretadaxapop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5441/4494/files/xipuwol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5847/0816/files/nupafuwerogob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/fujuroboxobozujake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/tutitosiveti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5306/3063/files/refapoxukiruxomine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3280/4504/files/71109545296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/20826385545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9998/7873/files/questoes_de_analise_combinatoria_e_probabilidade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0821/1619/files/89453100227.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_off000078f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F2 5804 bytes
SHA-256: ee3546775f92ecd836cce296429aa33cefeb93de522fdbc96d8e136235d677ee
font_01_sfnt_off00008cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDA 10352 bytes
SHA-256: f433f660cd443cc098c73e261c28fe03f1324a4291add5c7a3b8bb0cbfb88351

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