MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector infrastructure, identified as 'ttraff.club'. The document body, though heavily obfuscated, contains text suggesting it is a 'study guide', which is a common lure for phishing or malware delivery. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to distribute payloads.
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.club/wix?keyword=cset+health+science+study+guide
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/5107/2158/files/61652334613.pdf
- https://cdn.shopify.com/s/files/1/0434/4987/6641/files/symantec_file_share_encryption_installation_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/7791/9129/files/14780782079.pdf
- https://static.usrfiles.com/ugd/2d797c_ce90fc4fdcaf421db524990f26b4aa4c.pdf
- https://static.usrfiles.com/ugd/97aff7_a813416bdeb0463d9637d96f77d15e95.pdf
- https://static.usrfiles.com/ugd/1be480_5353a2c24b804184b5bfc55a193df1af.pdf
- https://static.usrfiles.com/ugd/0047a4_4afe3c7e81e446e59582bbe6429a638a.pdf
- https://cdn.shopify.com/s/files/1/0439/0718/6843/files/jumapemike.pdf
- https://cdn.shopify.com/s/files/1/0430/6737/5770/files/zeweromitoragulosunubune.pdf
- https://cdn.shopify.com/s/files/1/0430/8179/3698/files/sales_contractor_agreement_template.pdf
- https://cdn.shopify.com/s/files/1/0429/6055/2085/files/67752372932.pdf
- https://cdn.shopify.com/s/files/1/0428/1165/4307/files/15883685327.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005e8e.bin9ff8f7f3c03293cbf3ec0d728d8b872cda2b6149e9e818c1305da382b6e5fd7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E8E | 5112 bytes |
font_01_sfnt_off00006ff7.binf23510a8c0fe13c152a56b7b415d0685bca371999d949fb2320197fc74557963 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FF7 | 10260 bytes |
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