Malicious PDF — malware analysis report

Static analysis result for SHA-256 92a7e5380d42881b…

MALICIOUS

PDF

43.2 KB Created: 2020-09-12 01:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a02c295d0e853392bcfc89794a445ec SHA-1: ecb9564ef680c01fe436a513bde3ec9710458d0b SHA-256: 92a7e5380d42881b81a1da5d549efb38440ff8a529f1a8809060e39096add2f0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, indicating a link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that appears to be part of the link farm, suggesting the primary purpose is to lure users to external, potentially malicious, sites.

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.link/wix?keyword=fair+dealing+news+reporting+uk In PDF document text
    • http://jonafodef.thewildchildtotshop.com/uploads/1/3/1/4/131453674/7617701.pdfIn PDF document text
    • http://files.pslcrazyquilters.org/uploads/1/3/1/6/131636990/d8b8234.pdfIn PDF document text
    • http://votizog.melindaawestland.com/uploads/1/3/2/6/132695675/kiwakomodefid_fegerinuwop_zisimusagate_lezugir.pdfIn PDF document text
    • http://gagepokux.lotusenergyandmassage.com/uploads/1/3/2/3/132302936/8d4893f39.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/1/0433/7346/1660/files/rowupapukowojigakovef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1607/4902/files/terisomisolaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/vetisawekonikuwamovotita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4721/3464/files/fezomo.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_39d101f5df8f412494bf6d202484333c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7ef0dc_c17f3ab9bc0849f4820e6b1aeac58843.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1e52da_e4818b4d79064f8abd0aa8f35bb61c2c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/11f207_d09ef6dd74314953a8c7d19b9b03cb22.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_549eebdb6cbf4c96a468488f6594c729.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fac845_724b35bebc0247d189cb6a0bac9ac692.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/516793_a4e9cde2fb084583bea86c550928f2b8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4f270c_2bb574caacc04a0baee7fb61e8fe9f86.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c33f71_24739f318c9f47b8992d5c8a2ce7be30.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_off00006a32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A32 5236 bytes
SHA-256: e6397489f7d18b7cb1c24073cb442a42d8d5332f4cf944883cbcc509096f806f
font_01_sfnt_off00007c2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2C 10392 bytes
SHA-256: 3475b52a1e68d3b2b99c401f10655c5e85e06905bbd6a4bb9d1f7f31973e69be

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