Malicious PDF — malware analysis report

Static analysis result for SHA-256 42d02fad97542d52…

MALICIOUS

PDF

41.2 KB Created: 2020-08-22 04:02:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c0f815305e566a0dc315133affedc87 SHA-1: 9a7b32704889d396175d2be35b2d92cd5ebb7e9a SHA-256: 42d02fad97542d520e5b911603f6377de49d97faf734eba17a606048e181e447
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and SEO link farming, specifically pointing to a redirector URL. The document body, though heavily obfuscated, contains a reference to the same redirector URL, suggesting an attempt to trick users into downloading further malicious content. The presence of numerous PDF links, many hosted on Shopify, further supports the SEO link farm tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bheema+movie+songs++kuttyweb In PDF document text
    • http://files.divine-wellness.org/uploads/1/3/1/4/131407148/3531248.pdfIn PDF document text
    • http://files.masonphall.net/uploads/1/3/0/8/130874067/6b7b6020935190f.pdfIn PDF document text
    • http://files.inki.co.nz/uploads/1/3/1/6/131637584/bupuxowax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6693/2902/files/55702746357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/anglo_saxon_period_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8014/5313/files/rejugelap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6410/5886/files/the_guardian_crossword_answers_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5255/4657/files/95801968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0976/files/17893937331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3331/3958/files/beguzipox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2245/files/dubivedizelupubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7400/8741/files/html_doc_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5742/1224/files/after_effects_cs6_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1721/3851/files/11997741717.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5544 5360 bytes
SHA-256: 1b56d3f573f9adfcc636233640fc79545272ac6580055b3e964d429572b71694
font_01_sfnt_off00006781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6781 10172 bytes
SHA-256: a62f76ed9ebd37e95c5a937a5d7641d3cd74052bf7700c132fb10d9a439f3341
font_02_sfnt_off00008a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A18 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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