MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The embedded URL, https://ttraff.club/wix?keyword=nhsn+clabsi+reporting+form, is the primary indicator of malicious activity. The document body, though heavily obfuscated, contains this URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly flagged 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.club/wix?keyword=nhsn+clabsi+reporting+form
- https://static.usrfiles.com/ugd/83d902_6685423bd3684063a34de7159293540b.pdf
- https://static.usrfiles.com/ugd/b8c837_3b8b994bfbaf4669bd8201a54318016d.pdf
- https://static.usrfiles.com/ugd/0dcf4b_565707f73fc94f878c3774915cf9ec68.pdf
- https://static.usrfiles.com/ugd/3e87bf_df86ed3a4bdc4e7490afad493dbc468c.pdf
- https://static.usrfiles.com/ugd/80c1db_a4205c76e3ba4c2ea9c02b1ce1324875.pdf
- https://static.usrfiles.com/ugd/b8c837_7d8fc4fd0ad94a6da987e6ac189295b7.pdf
- https://static.usrfiles.com/ugd/9ff9b8_56a88074071242d29b1d1b5486653217.pdf
- https://static.usrfiles.com/ugd/ddb60a_b170f4d77eb94766be7a6eccb063b0b0.pdf
- https://cdn.shopify.com/s/files/1/0433/6127/1959/files/tufaxidovizeredasikovi.pdf
- https://cdn.shopify.com/s/files/1/0427/5381/8790/files/femagediludozuvi.pdf
- https://cdn.shopify.com/s/files/1/0429/5625/9491/files/43134558283.pdf
- https://cdn.shopify.com/s/files/1/0437/0553/2569/files/cpt_2017_professional_edition_free_download.pdf
- https://cdn.shopify.com/s/files/1/0431/5168/7848/files/26385831183.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_off0000cd40.bindb9446053b8294d598b5b318495c498b6047325e3c4a0a204634eae124507d2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD40 | 5324 bytes |
font_01_sfnt_off0000df22.bin6f75cedb865e62594ca61ab345a712915fa8b4710b63a1b75c6664b88fce9245 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF22 | 16376 bytes |
font_02_sfnt_off000111c4.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111C4 | 4324 bytes |
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