MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a high number of embedded URLs, with a critical heuristic firing indicating a malicious redirector link. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF links, suggesting a link farm or SEO poisoning tactic to lure users to malicious sites.
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=nbcot+exam+study+guide
- https://static.usrfiles.com/ugd/b8c837_053c0258328d466fb7a69ceb52b4bdd0.pdf
- https://static.usrfiles.com/ugd/b8c837_e0120433f8ed46b1b7e740f4ad7a52f0.pdf
- https://static.usrfiles.com/ugd/b8c837_1f0d6ebb48224e0291c738e83f12f25a.pdf
- https://static.usrfiles.com/ugd/b8c837_847af44f1b3546cfb31964275fee38e1.pdf
- https://static.usrfiles.com/ugd/ecec20_75fa9aef73404e4289c960daf02a75bd.pdf
- https://cdn.shopify.com/s/files/1/0432/2679/2093/files/dusumesezawegupifod.pdf
- https://static.usrfiles.com/ugd/ace02d_9283ff4b63324c69998c3dea0fde1e1d.pdf
- https://static.usrfiles.com/ugd/ace02d_00d4137af7a047839b1feba1c9fb8fd5.pdf
- https://static.usrfiles.com/ugd/09c3c7_9495158fec2e415bacb49674d9e4c4f6.pdf
- https://static.usrfiles.com/ugd/1e32c2_5b2286ad906b491c88d3288e0f2c8dbc.pdf
- https://static.usrfiles.com/ugd/b8c837_b8e4ae36c5374a73b9f1ceb5e9ffd61c.pdf
- https://cdn.shopify.com/s/files/1/0448/4333/5837/files/belfast_city_centre_map.pdf
- https://cdn.shopify.com/s/files/1/0428/5209/0022/files/ridinitilimezise.pdf
- https://cdn.shopify.com/s/files/1/0434/4781/2248/files/binks_hvlp_spray_gun_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/2691/5239/files/89399897453.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006faf.bindc19d02220245937a2c1d03e254fd891f5b6f4abed6c42fc2cc4c122be088377 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FAF | 5408 bytes |
font_01_sfnt_off0000820b.binb3c89b1c46a14e497802034e5c27b7ce255160e167ed02f3f00d9a2d3bd84141 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x820B | 10468 bytes |
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