MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.cc/wix?keyword=exerc%25C3%25ADcios+de+rela%25C3%25A7%25C3%25A3o+fundamental+da, which is flagged as a malicious redirector. The document body, though heavily corrupted, appears to contain text related to exercises, suggesting a lure to encourage clicks on these links.
Heuristics 3
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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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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=exerc%25C3%25ADcios+de+rela%25C3%25A7%25C3%25A3o+fundamental+da
- https://static.usrfiles.com/ugd/b8c837_1e16c89ece2d441d99aa31afefa96d13.pdf
- https://static.usrfiles.com/ugd/b8c837_e89112dd1c914b419281e2aed22d17e8.pdf
- https://static.usrfiles.com/ugd/b8c837_05541944863e4a8cb301cb6a7e10482f.pdf
- https://cdn.shopify.com/s/files/1/0431/9277/8912/files/3069642221.pdf
- https://cdn.shopify.com/s/files/1/0430/3428/0090/files/53213020483.pdf
- https://cdn.shopify.com/s/files/1/0432/1997/6350/files/adjective_or_adverb_exercises_elementary.pdf
- https://cdn.shopify.com/s/files/1/0429/3771/2806/files/classification_of_occupational_diseases.pdf
- https://cdn.shopify.com/s/files/1/0429/1729/8329/files/classical_beam_theory.pdf
- https://cdn.shopify.com/s/files/1/0440/6686/5302/files/fijituneragigaxuze.pdf
- https://cdn.shopify.com/s/files/1/0430/2641/5779/files/java_cash_register_program.pdf
- https://cdn.shopify.com/s/files/1/0453/6303/6315/files/36392867823.pdf
- https://cdn.shopify.com/s/files/1/0430/1042/4985/files/49473526510.pdf
- https://cdn.shopify.com/s/files/1/0436/6827/5353/files/gndu_date_sheet_ba_5th_sem_2019.pdf
- https://static.usrfiles.com/ugd/b8c837_72ac00d833ba4b14b2a37e71ec36f944.pdf
- https://static.usrfiles.com/ugd/b8c837_c44407b9b901460694c3080e5b5616a2.pdf
- https://static.usrfiles.com/ugd/b8c837_2bf95712b18f42708f6b0e0c05816a00.pdf
- https://static.usrfiles.com/ugd/b8c837_771c7bb782ae4ffabacd897664d6389f.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_off00006438.bin1e3c582705434d9711c82c70b20762254934799e51d9adb47e690cde332d3d0d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6438 | 5748 bytes |
font_01_sfnt_off000076d1.bin643e43b3f42c9ed2d5929678dea6936d14f108b8b80edfcf59e2f6e334932d08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76D1 | 15676 bytes |
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