MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is ttraff.cc, which is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain the same URLs, suggesting a link farm or phishing lure. The ML classifier also strongly indicated maliciousness.
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=ejercicios+resueltos+numeros+decimales+4+primaria
- https://static.usrfiles.com/ugd/b8c837_950f4480af9747f4ad58c4cec5241e0c.pdf
- https://static.usrfiles.com/ugd/55cc32_176ffe2683a949d08a7be1903a2f8fd6.pdf
- https://static.usrfiles.com/ugd/ce14f3_35647680d17c49ffb88ee881aa97f4c2.pdf
- https://static.usrfiles.com/ugd/105a8c_bc19cd9b46074ebfb6cbad3dfcb7d583.pdf
- https://static.usrfiles.com/ugd/3aca14_3fc742f1c4854f1986adddd52b55a957.pdf
- https://cdn.shopify.com/s/files/1/0428/9078/9027/files/gikerovasufafid.pdf
- https://cdn.shopify.com/s/files/1/0437/8984/4631/files/43780849530.pdf
- https://static.usrfiles.com/ugd/b8c837_9010707b508d4fe29e5c843adfd177c3.pdf
- https://static.usrfiles.com/ugd/b8c837_a549923e13cf4248b8a2f4a604685c78.pdf
- https://cdn.shopify.com/s/files/1/0432/6031/3768/files/percentage_error_practice_problems_answers.pdf
- https://cdn.shopify.com/s/files/1/0432/0677/0843/files/30300360255.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66491839223.pdf
- https://cdn.shopify.com/s/files/1/0430/3116/7137/files/rugofepuwosuronakuwo.pdf
- https://cdn.shopify.com/s/files/1/0434/2510/4028/files/adda_247_all_books.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_off0000615a.bin2220d48aa6228b3ca4106cc007b57fe7d521c9ef102e2704ee414179c98de84a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x615A | 5340 bytes |
font_01_sfnt_off00007374.binc24a574fe8dffdd546e80037edec197a028b2e0ad9d331895016e797a5b9cd1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7374 | 11548 bytes |
font_02_sfnt_off000098b1.bin25b4721464b7316f01e21ed2c3faf4040515a2c9bdaa67695c41ecc6d6989cce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98B1 | 16124 bytes |
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