MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Nims 700 test questions and answers' and embeds a URL that leads to a malicious redirector. The presence of a large number of external links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to obscure the malicious destination.
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.link/wix?keyword=nims+700+test+questions+and+answers
- https://static.usrfiles.com/ugd/0cd3a8_9cc8c733bbf84e9cb67344b95e489449.pdf
- https://static.usrfiles.com/ugd/b8c837_cc7f93e8b811467cb0ed3ad494484435.pdf
- https://static.usrfiles.com/ugd/b8c837_ca7bd45308a040af9b29010b968ec1ce.pdf
- https://static.usrfiles.com/ugd/f3cb45_37ed9dbfff544a78a1029fc60d532a64.pdf
- https://cdn.shopify.com/s/files/1/0436/6126/3001/files/auditing_and_assurance_services_16th_edition_free_download.pdf
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/71801886544.pdf
- https://cdn.shopify.com/s/files/1/0433/3853/0965/files/25525088404.pdf
- https://cdn.shopify.com/s/files/1/0433/5697/9351/files/spider_ichor_vanilla.pdf
- https://cdn.shopify.com/s/files/1/0432/4874/6651/files/41730617540.pdf
- https://cdn.shopify.com/s/files/1/0434/2172/8918/files/36659151596.pdf
- https://cdn.shopify.com/s/files/1/0428/3862/2375/files/nupapitavaguzija.pdf
- https://cdn.shopify.com/s/files/1/0431/3032/3101/files/94670279561.pdf
- https://cdn.shopify.com/s/files/1/0435/8340/6239/files/87809135758.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006b12.binad21ef4240ee52fc2cc8500d6725cbd298538b8c3db8618c6ed85d7a978218bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B12 | 5232 bytes |
font_01_sfnt_off00007cd1.binc33633591fecc4af53cb1400e7c55dc34f6f5d7429889b424588975b9febf704 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CD1 | 10224 bytes |
font_02_sfnt_off00009f9d.binff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F9D | 4324 bytes |
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