MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, appears to contain keywords related to educational materials, suggesting a lure. The presence of numerous external links, many pointing to Shopify, indicates a link farm strategy, likely to improve SEO for malicious content. The ML classifier strongly flags this PDF as malicious.
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.com/wix?keyword=ocr+gateway+gcse+biology+student+book+answers
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0439/4103/6200/files/7138130919.pdf
- https://cdn.shopify.com/s/files/1/0433/9433/4870/files/download_meek_mill_dreams_and_nightmares.pdf
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/tobifasozep.pdf
- https://cdn.shopify.com/s/files/1/0431/9536/7585/files/70567673544.pdf
- https://cdn.shopify.com/s/files/1/0438/3545/7696/files/sammamish_wa_weather.pdf
- https://cdn.shopify.com/s/files/1/0455/4991/2229/files/somuka.pdf
- https://cdn.shopify.com/s/files/1/0435/1524/8794/files/67248651991.pdf
- https://cdn.shopify.com/s/files/1/0435/2576/7320/files/brinkmann_electric_smoker_manual.pdf
- https://cdn.shopify.com/s/files/1/0436/4868/0089/files/pdf_to_word_converter_nitro_free_download.pdf
- https://cdn.shopify.com/s/files/1/0433/7578/8184/files/fizotosodi.pdf
- https://cdn.shopify.com/s/files/1/0440/7692/5078/files/givigojeb.pdf
- https://cdn.shopify.com/s/files/1/0428/4504/4892/files/gisetib.pdf
- https://cdn.shopify.com/s/files/1/0432/8911/6840/files/56176237439.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_off0000455b.bin53bd099196e38f6788a3f0ce4f3807e6f95f301d9e47702f069fdcf46a8ea39c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x455B | 5532 bytes |
font_01_sfnt_off00005846.bin1ba2e8f6cdc42c91c1d12572207d8ee7ac7a3c1536466dd9079dd3994739398e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5846 | 10164 bytes |
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