Malicious PDF — malware analysis report

Static analysis result for SHA-256 859de4def6129c80…

MALICIOUS

PDF

40.8 KB Created: 2020-08-11 14:04:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f80e11961d70b07d842615555d77249 SHA-1: 1985637d5ced656dc2ebbae7b7c8a1105a16279b SHA-256: 859de4def6129c80b37ca70c433e8ec1999bf71edb80afd9e29dcde2d16bb3a6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting a phishing or malware delivery attempt. The presence of multiple Shopify links and other domains indicates a link farm designed to obscure the ultimate destination.

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=autodesk+vex+robotics+curriculum+pdf In PDF document text
    • http://rizab.8suitcases.com/uploads/1/3/0/8/130874359/fomewuwabo.pdfIn PDF document text
    • http://tijovola.theachoostics.com/uploads/1/3/2/8/132814975/9399705.pdfIn PDF document text
    • http://files.blackfiligreeco.com/uploads/1/3/1/3/131397946/pizage.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/1/0431/2937/2832/files/49323028040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4564/8546/files/29823031812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7555/7793/files/7120155743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/14666214415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/rudagorowovivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1337/3084/files/dusurijaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3693/2253/files/14501623771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0631/5943/files/business_proposal_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6409/8970/files/kanole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/metro_map_pink_line.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/zelujupedobizope.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 3

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_off00005fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC8 5412 bytes
SHA-256: 1cc0a665326d41ddf62df7d11ba5a1f207901e78c7aa82727fe52c7faa596ff9
font_01_sfnt_off00007221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7221 10704 bytes
SHA-256: f7413229c11b630f3c7566e17647dffd5c4e1d4c4c71da88ab78d4cc0867acfe

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