MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL and appears to be a lure for educational content. The ML classifier also strongly flagged this PDF as malicious. The presence of numerous external links suggests a link farm or SEO manipulation tactic.
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/wix?keyword=dna+base+pairing+worksheet+answer+sheet
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/a59130_96b65bad882a442db05c8cc81efc2b8b.pdf
- https://static.usrfiles.com/ugd/e2c250_e0e4b8e51ccd4101a5bbec74e2cd944a.pdf
- https://static.usrfiles.com/ugd/b8bbd7_7574eb130fda4fa78f8aec9f93fcf7c0.pdf
- https://static.usrfiles.com/ugd/f96b02_0d7db8888aa34a7c820414cf2de054dc.pdf
- https://static.usrfiles.com/ugd/daca0d_ec3ef44fc12a41efaa670174b5bdf228.pdf
- https://static.usrfiles.com/ugd/6da380_f9a262b955d748448929472bdf3850c3.pdf
- https://static.usrfiles.com/ugd/b4f0c6_73688873e0194cea99e089802bea7b86.pdf
- https://cdn.shopify.com/s/files/1/0433/2873/3352/files/noferofegakilubuwomoz.pdf
- https://cdn.shopify.com/s/files/1/0433/0828/6105/files/moderated_marking_template.pdf
- https://static.usrfiles.com/ugd/2074c9_a891e31d9a744e9c889883c25da6b79a.pdf
- https://static.usrfiles.com/ugd/b8c837_e04f85e25f084dec8ec5ed9a4a36169f.pdf
- https://static.usrfiles.com/ugd/d775a9_ce58d659f3834e37b3c86b3f4bf9b1d2.pdf
- https://static.usrfiles.com/ugd/d63aaf_da3c1fa31c194851b5400069149eda8a.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_off00004aac.bin0f1e3421dc930442c765116690882e953efde75f683b7673fc14898cfa702d95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4AAC | 5344 bytes |
font_01_sfnt_off00005ce9.binf39382b3f95a7462dbbe42ed84bb13aa165d5632800744ff75575e1e36ae06ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CE9 | 13288 bytes |
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