MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains embedded links that redirect to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'Cognitive behavioral therapy manual pdf'. The presence of numerous external PDF links, many pointing to Shopify domains, suggests a link farm designed to obscure the ultimate malicious destination. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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.com/pify?keyword=cognitive+behavioral+therapy+manual+pdf In PDF document text
- http://rogabare.adamscounty5kchallenge.com/uploads/1/3/2/6/132682883/155ddfc8821.pdfIn PDF document text
- http://zemuzula.scsaints.com/uploads/1/3/1/3/131383790/5598655.pdfIn PDF document text
- http://files.unostradivariperlagente.com/uploads/1/3/2/7/132740997/1275996.pdfIn PDF document text
- http://xagef.epicrobotics.co.uk/uploads/1/3/2/7/132740405/joporenixekuporuriba.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/1/0430/8615/1833/files/xegaxepevajubus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0496/7581/files/44832465946.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7651/8049/files/gevalizorasowamaposakirum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9966/0194/files/81637944180.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9813/5966/files/noxotowezitipogaruz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/6945/2967/files/internal_auditing_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3818/7413/files/physics_for_scientists_and_engineers_9th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7980/2782/files/28564602158.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1740/4573/files/serosikilanaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6443/4583/files/43864736022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9814/4932/files/pegojokivimamisetoper.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7465/0261/files/balateje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9726/0192/files/rutoroburerusizig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9439/2485/files/zoramepolebijemut.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006885.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6885 | 5484 bytes |
SHA-256: c4f98665b7b9e2579172924fd3d00bc583d97c594424e1a98e73a8e8b41bc8e9 |
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font_01_sfnt_off00007b0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B0D | 10476 bytes |
SHA-256: 5afde98db28871d9189be3e0f06519e3ee14c92f7a07a46e5d2ffeed55a1ef60 |
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