MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised with text related to 'El acto administrativo ley 39/2015'. The document also features a large number of embedded links to static.usrfiles.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.
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=el+acto+administrativo+ley+39%252F2015
- https://static.usrfiles.com/ugd/8ab72e_07f51897386d4c54b606faa8ea43833c.pdf
- https://static.usrfiles.com/ugd/6a7407_42849ccf49d2454ca68107cca7f13114.pdf
- https://static.usrfiles.com/ugd/89064d_c210bf73b0314b9a99c5507fb228b9e3.pdf
- https://static.usrfiles.com/ugd/e42ee3_f036990b332a4b3fad218bb87092e74c.pdf
- https://static.usrfiles.com/ugd/a4d998_6fa1279becac4862b7e246e60071f522.pdf
- https://static.usrfiles.com/ugd/2f8cea_c5753b0b12e444e8916ea3cce14e26ae.pdf
- https://static.usrfiles.com/ugd/b8c837_8e4350b43ae547118527007f65489b33.pdf
- https://static.usrfiles.com/ugd/e3ff21_2033a86772ad4a55b4904a59cc19540d.pdf
- https://static.usrfiles.com/ugd/6cf392_e67e0b8e74e04f47a425d4885aed822f.pdf
- https://static.usrfiles.com/ugd/b8c837_c5696e3f709347e98e4e32ffb672a74c.pdf
- https://static.usrfiles.com/ugd/10b11f_861e2705d5744bcc83549d931329f862.pdf
- https://static.usrfiles.com/ugd/cac9e4_b4bd9cf598bf4867a18807b8c85d298b.pdf
- https://static.usrfiles.com/ugd/b8c837_4dd701a1a1a34f57acba642faf80095b.pdf
- https://static.usrfiles.com/ugd/b8c837_69864e2194be4bcab8c9cf96bf64d9ec.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_off00006aa0.bin8fdca4a4fbdd6f48afd38a86895dcf3f72f27c214294b2793c35b6fcbad4f9a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA0 | 6012 bytes |
font_01_sfnt_off00007f12.bin9934526a7f07ad32243ea8744b4de9db8733b2cadadea58435b2eb1bbb4f44c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F12 | 14868 bytes |
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