MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text that appears to be a lure related to IELTS reading passages, and the embedded link also contains a similar keyword. The presence of numerous other links to Shopify PDFs suggests a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. No scripts were extracted, and the PDF structure itself is the primary vector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.cc/wix?keyword=ielts+reading+passage+beneath+the+ca
- https://cdn.shopify.com/s/files/1/0438/3267/2418/files/nms_surgery_casebook_2nd_edition.pdf
- https://cdn.shopify.com/s/files/1/0434/3142/8248/files/67198718119.pdf
- https://cdn.shopify.com/s/files/1/0430/4722/3458/files/oxford_maths_book_for_class_5.pdf
- https://cdn.shopify.com/s/files/1/0431/2157/4049/files/96704266945.pdf
- https://cdn.shopify.com/s/files/1/0438/1474/8322/files/17970599568.pdf
- https://cdn.shopify.com/s/files/1/0430/0737/7567/files/pamoxagapemeninuboz.pdf
- https://cdn.shopify.com/s/files/1/0438/9748/7512/files/dujafadazojolajubelen.pdf
- https://cdn.shopify.com/s/files/1/0429/9315/6259/files/aircraft_crash_video.pdf
- https://cdn.shopify.com/s/files/1/0430/9070/6589/files/64250897268.pdf
- https://static.usrfiles.com/ugd/b8c837_e1a2b99b75e348ca8fa1a0c5f35bb275.pdf
- https://static.usrfiles.com/ugd/b8c837_5e2332e9d968435c90a88c7900c7f6ca.pdf
- https://static.usrfiles.com/ugd/b8c837_7df349b8dad545d58ed9b50e11a55cc5.pdf
- https://static.usrfiles.com/ugd/b8c837_2fe25d6526324c378ceb3e72ea834f89.pdf
- https://static.usrfiles.com/ugd/b8c837_56832bff5e0b4c5982dfa82bff44cd28.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d631.bin00214fe16c262e684807f57b19bd3255a61db0bf268a590956dafcefb77b815f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD631 | 5412 bytes |
font_01_sfnt_off0000e877.bin5bc7757207b1f4d15788c2d6f541563c9e97becd39e013edd5dd43a82a88c7af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE877 | 10700 bytes |
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