MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm designed to appear as exam questions, likely to trick users into downloading further malicious content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ccda+exam+questions+pdf, which is flagged as a malicious redirector. The document body itself is heavily obfuscated and contains embedded URLs pointing to various PDF files hosted on Shopify and other domains.
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/pify?keyword=ccda+exam+questions+pdf
- http://files.scsalc.org/uploads/1/3/1/0/131070576/madixapukakosut.pdf
- http://files.sukhi.no/uploads/1/3/2/6/132681210/4786180.pdf
- http://files.eternaltimberanddesign.com/uploads/1/3/0/8/130814014/josesafewe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/2505/5389/files/54872188335.pdf
- https://cdn.shopify.com/s/files/1/0430/1278/4277/files/witupitotusitewuw.pdf
- https://cdn.shopify.com/s/files/1/0429/1988/7001/files/13247228699.pdf
- https://cdn.shopify.com/s/files/1/0430/6989/8914/files/witume.pdf
- https://cdn.shopify.com/s/files/1/0433/9325/3526/files/12003541080.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdf
- https://cdn.shopify.com/s/files/1/0434/4646/8769/files/83781168847.pdf
- https://cdn.shopify.com/s/files/1/0428/6981/7511/files/71117563033.pdf
- https://cdn.shopify.com/s/files/1/0433/7103/6823/files/71020702059.pdf
- https://cdn.shopify.com/s/files/1/0437/6032/0663/files/fowulokutelubap.pdf
- https://cdn.shopify.com/s/files/1/0430/8933/0330/files/webukefuke.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_off000061e3.bina4b557f4655669b5636daf2809074d77e0d3542d59425a19763706f05a0374eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61E3 | 5272 bytes |
font_01_sfnt_off000073c7.bin7a9a146fd6c6f931f78149251a14dd48b824a188441f43738a81babbb4b9cc4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73C7 | 11164 bytes |
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