MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=tan+x+in+terms+of+sin+and+cos', is designed to lure users to malicious infrastructure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external documents, suggesting a broader campaign to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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.link/wix?keyword=tan+x+in+terms+of+sin+and+cos In PDF document text
- http://files.trinitybaptist-illinois.com/uploads/1/3/2/6/132695258/sumadizobawaxisajo.pdfIn PDF document text
- http://vepix.naye.org/uploads/1/3/0/8/130874114/wilabenobowol_pidonowisideji.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://4ca85dc9-a125-44c8-8755-3077134d9d0a.filesusr.com/ugd/135178_fe128411c9c04e2bab757b25ae37fe41.pdf?index=trueIn PDF document text
- https://04bc7525-65f6-4d18-9c7d-984aef19edbf.filesusr.com/ugd/cdfdba_d48fd114e1684d0b9a2b5990dc5b45ea.pdf?index=trueIn PDF document text
- https://688b9e1d-bb54-46a0-992f-d046501a23f6.filesusr.com/ugd/b444d4_a30161034fc94083bc54473a78d2e651.pdf?index=trueIn PDF document text
- https://f42f4da8-3f68-4fa8-a376-9774a0920bf6.filesusr.com/ugd/accd1f_2d8c431b41b94f6090e2df43a1294f32.pdf?index=trueIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8136/7712/files/argmin_in_latex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9339/2536/files/xuvuzamarekizekefezeton.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35117459625.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3508/1374/files/foxfi_key_supports_pdanet_apk_full.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9203/4211/files/76706408142.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/3521/7307/files/gimupigadamejufux.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001b123.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B123 | 5152 bytes |
SHA-256: 582f44bb63eaf3048da6278442d32e1d3974e7519c6bff2078202066b6c6bcc3 |
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font_01_sfnt_off0001c29b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C29B | 18256 bytes |
SHA-256: 4e3de4fc24ce0e3fe8be3a8bd362fc7b77da920cc1755d1c0d4949fd67c966fa |
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font_02_sfnt_off0001fbf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FBF2 | 17132 bytes |
SHA-256: 1571366eaef651625db1f3879f8b491cef9450de92e6b27e4da9951ebd50f43e |
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