MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com, and one critical link to a known malicious redirector at ttraff.club. The ML classifier also strongly indicated maliciousness. The document body and embedded links suggest a lure to download further malicious content or engage in phishing. No scripts were extracted from this sample.
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=ventajas+del+aprendizaje+significativo+pdf
- https://cdn.shopify.com/s/files/1/0437/0500/8280/files/nipojikuta.pdf
- https://cdn.shopify.com/s/files/1/0430/0144/6551/files/easiest_test_ever.pdf
- https://cdn.shopify.com/s/files/1/0431/1639/6695/files/apologize_justin_timberlake_piano_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0431/6790/8004/files/didos.pdf
- https://cdn.shopify.com/s/files/1/0433/5150/7112/files/meeting_notes_template_google.pdf
- https://static.usrfiles.com/ugd/824332_1aaa81520ec349c1a8fa663324803fae.pdf
- https://static.usrfiles.com/ugd/3794ad_011358a175e448e19f3ca5e95e733880.pdf
- https://static.usrfiles.com/ugd/c0b427_b03e3db49721432fb930c2f12de74678.pdf
- https://static.usrfiles.com/ugd/253000_49f59db4fbc14fada9a34cd5966162a2.pdf
- https://static.usrfiles.com/ugd/b8c837_77ca199deae448acbbea2621e45f71ec.pdf
- https://static.usrfiles.com/ugd/5cf23b_2f4dced26a954699a62c4b105fe61eb7.pdf
- https://static.usrfiles.com/ugd/3402b1_2a5a22fdccba44c1992e63fb9b67fb19.pdf
- https://static.usrfiles.com/ugd/9d66c7_74fa99990b6944729b516bd943c29cf6.pdf
- https://static.usrfiles.com/ugd/76156b_7acf1bc0b066452e8ac1a3cc6568d000.pdf
- https://static.usrfiles.com/ugd/2ca09c_a447f60efad44df09e2c6da8d54388ad.pdf
- https://static.usrfiles.com/ugd/cc3ca9_dab45ffaeac04a4fa4cff0b28342bd4e.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_off00006f3d.bin7d3fc05f6c94a1e5243432e8512bfc4524c580622464647789d9dc3d39c5785f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F3D | 5476 bytes |
font_01_sfnt_off00008208.bin0bb4f80c5d54a48ec00f7e414bde46b2c2a2b79f895659d3d20bda911792a06b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8208 | 10868 bytes |
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