MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests a large number of external links, with one identified as a redirector. The ML classifier also strongly flagged this PDF as malicious. The document body contains the URL https://ttraff.cc/wix?keyword=nms+casebook+surgery, which is likely the primary lure.
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=nms+casebook+surgery
- https://static.usrfiles.com/ugd/ce5d00_b889bcc8d93d48d6a60dded40c6f7c46.pdf
- https://static.usrfiles.com/ugd/b65acf_6634a110623c42bead130a55647cbaff.pdf
- https://static.usrfiles.com/ugd/b8c837_6095cd605a4b43bca7bb6f59728d8c0f.pdf
- https://static.usrfiles.com/ugd/b8c837_9b556fd772c44d8b82230052d94cc704.pdf
- https://static.usrfiles.com/ugd/b8c837_9917e18e7d0143e69e14cd82f8205fd7.pdf
- https://static.usrfiles.com/ugd/b8c837_548c94c05dee4178b9bbfeab9398e19c.pdf
- https://static.usrfiles.com/ugd/2e4eb4_730eefa5272c4737af4ce9a3775f88ec.pdf
- https://static.usrfiles.com/ugd/b8c837_3ee411929aed468eaa0a2edda25113f1.pdf
- https://static.usrfiles.com/ugd/fe83c3_40244e66c4814352a3abc318b520d38e.pdf
- https://static.usrfiles.com/ugd/9e53d4_fdfe25d24530488281b7fd1006d9df4c.pdf
- https://static.usrfiles.com/ugd/b7082a_401925e25aea49a9919d6200d44ccef5.pdf
- https://static.usrfiles.com/ugd/efb3f0_b8d65d2002d946d194d2eb9aa708c793.pdf
- https://static.usrfiles.com/ugd/289c5e_fea59d0b6b684b168155531ae243a306.pdf
- https://static.usrfiles.com/ugd/b8c837_dd683b0eeb184becba5b53404da3e5b5.pdf
- https://static.usrfiles.com/ugd/b8c837_42f546c2cd7845dba95f46381acebb02.pdf
- https://static.usrfiles.com/ugd/9374a7_ea55e42a6dab44fca32d6e7181ad6484.pdf
- https://static.usrfiles.com/ugd/3b7182_5084eff30a894f2d96ff503f768fa159.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_off000059aa.bin0957ddb616b5c4f39c417efea5579026485fe4f5385f86654f8b7a4cdb13f549 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59AA | 5360 bytes |
font_01_sfnt_off00006bda.bin3a20ca83614c86267ec86d4319b74285e3081e2132aeb657dcb40555beec2486 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BDA | 10192 bytes |
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