Malicious PDF — malware analysis report

Static analysis result for SHA-256 85d366c94651eb20…

MALICIOUS

PDF

45.6 KB Created: 2020-08-07 22:07:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01a443b2b21f21e4e075e0163829531b SHA-1: aced63a2a739cd67ec10955b33868a4bc4b48162 SHA-256: 85d366c94651eb206361c08af04b2a2db5a848172a3184446a43dc94ca11461a
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 a URL identified as a redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'catalogue disjoncteur schneider pdf'. The presence of numerous external PDF links, many pointing to Shopify, suggests an attempt to create a link farm or distribute further malicious content. The ML classifier strongly flagged this PDF as malicious.

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.cc/pify?keyword=catalogue+disjoncteur+schneider+pdf In PDF document text
    • http://files.lifewithsoosan.com/uploads/1/3/1/8/131859261/7749268.pdfIn PDF document text
    • http://files.iscariotstories.com/uploads/1/3/0/7/130738620/7f48eee3c.pdfIn PDF document text
    • http://files.jessicacollaphotography.com/uploads/1/3/1/1/131164159/7708086.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/1/0431/0233/9232/files/79945945723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0244/3422/files/china_s_one_belt_one_road_initiative.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefopevepal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/75307748825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1512/6685/files/dasakag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopiforosolakalaxelavur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8624/1187/files/fumufaxoxix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/jefavomomoridekijigar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/41165303502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9360/6048/files/group_shifted_strings.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 5

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_off000063c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C8 5400 bytes
SHA-256: 2be3ed840cecca78dd1f55aaad2d69f6794846f87712a8a5eaf0f3e554db1f7d
font_01_sfnt_off00007621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7621 17148 bytes
SHA-256: ab38255ea90438cf052ea4915960faeb4dd77403c99a851cd5fcf12e87accc6c

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