MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a malicious redirector link disguised as a "Princeton review books pdf" download. The ML classifier strongly indicated maliciousness, and the PDF was found to contain a large number of external links, many pointing to potentially malicious infrastructure. The embedded URLs suggest a phishing or scam attempt to redirect users to malicious content.
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=princeton+review+books+pdf
- http://files.caringaboutquotes.com/uploads/1/3/0/7/130775025/3065572.pdf
- http://files.lesmarmitons-sandysprings.org/uploads/1/3/0/7/130739718/jemabisafugikeb.pdf
- http://files.artbylaura.net/uploads/1/3/2/6/132695280/xotujarixupam-najobelisa-zirosibe.pdf
- http://files.kdyllon.com/uploads/1/3/1/8/131856815/3455629.pdf
- http://files.robbiesadventures.com/uploads/1/3/0/7/130738675/55324.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0832/7829/files/32018155264.pdf
- https://cdn.shopify.com/s/files/1/0432/1555/2674/files/tornado_shot_ranger.pdf
- https://cdn.shopify.com/s/files/1/0431/1996/8417/files/28755194868.pdf
- https://cdn.shopify.com/s/files/1/0431/0158/5570/files/pavonoje.pdf
- https://cdn.shopify.com/s/files/1/0431/8612/7009/files/47032072567.pdf
- https://cdn.shopify.com/s/files/1/0437/8856/6680/files/talaf.pdf
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/accident_and_emergency_radiology_a_survival_guide_3e.pdf
- https://cdn.shopify.com/s/files/1/0434/4456/8216/files/case_580ck_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/1128/4893/files/44620757481.pdf
- https://cdn.shopify.com/s/files/1/0433/8070/3382/files/51058234605.pdf
- https://cdn.shopify.com/s/files/1/0429/7513/3859/files/25056988529.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_off0000450d.bin78680a3b9fadde0a01e6cc57b8c07fec5091dac53bef7fc01b8f94a1afacc308 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x450D | 5264 bytes |
font_01_sfnt_off0000571a.binb4afbe2c42838072eacd8565b8ebcb5144e5b929eb9bae085c4f0a6076c8136d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x571A | 9400 bytes |
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