Malicious PDF — malware analysis report

Static analysis result for SHA-256 604ffe0478f92ba1…

MALICIOUS

PDF

37.9 KB Created: 2020-08-12 05:52:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2fa10d7e36c21ccd3c480cbb6f751f4 SHA-1: 73e7e6e04ded0018b066df10924418c347c612dd SHA-256: 604ffe0478f92ba1af89c2d928e540f2549e6587445fa1eeacde68a18c1c0e31
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links designed to redirect users to a malicious URL, disguised as a "free download" lure. The primary redirector, https://ttraff.cc/wb?keyword=market%20leader%20intermediate%20pdf%20free%20download, is flagged as malicious. The document body, though heavily obfuscated, contains references to this redirector and appears to be part of a link farm strategy to improve search engine ranking for malicious content.

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/wb?keyword=market%20leader%20intermediate%20pdf%20free%20download In PDF document text
    • http://files.janetashley.net/uploads/1/3/0/8/130874510/vadulator-badidugamixevi-tejulesimad-xudek.pdfIn PDF document text
    • http://files.podunkideas.com/uploads/1/3/0/7/130740211/2458681.pdfIn PDF document text
    • http://mugara.gddphotography.com/uploads/1/3/1/6/131606289/9c9b61c754.pdfIn PDF document text
    • http://kixuza.gcsecs.com/uploads/1/3/0/9/130969465/kitosob-bedevutolav-poxirekatogu-gadejiv.pdfIn PDF document text
    • http://files.diyprojectnest.com/uploads/1/3/2/6/132681245/dca084784d36b.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/1/0433/0323/9835/files/bagune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/gilbert_castellan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/57815332027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2383/7856/files/disadvantages_of_smoking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5192/6183/files/bihar_map_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/97686612478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5308/2782/files/bbq_smoker_designs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1619/2153/files/3037878926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/14365876725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1739/5611/files/75794914620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/14243956625.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_off00005518.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5518 5168 bytes
SHA-256: 7294fa043381e81aa108ca34a22d0d130891773f9bf175258dcf2ad64912ea2d
font_01_sfnt_off000066b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B7 10812 bytes
SHA-256: e236f451dcc3c37f1c857653620b755e934fc37b5a6e751d5fd9449358d01f9f

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