MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious due to embedded links pointing to known malicious redirector infrastructure. The primary URL identified is 'https://ttraff.ru/wix?keyword=caracteristicas+de+una+columna+de+op', which is a critical finding. Additionally, the file contains a large number of external PDF links, many hosted on 'static.usrfiles.com', suggesting a link farm or redirection strategy. 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.ru/wix?keyword=caracteristicas+de+una+columna+de+op
- https://static.usrfiles.com/ugd/c12414_75b118ecf3cc4e23b3588d709dc1f30a.pdf
- https://static.usrfiles.com/ugd/b8c837_1e32c33576144ae6bc827d11eab69f72.pdf
- https://static.usrfiles.com/ugd/b8c837_8470ae7d1d0b452a93a2c3e5dfdec204.pdf
- https://cdn.shopify.com/s/files/1/0435/5696/2465/files/introduction_to_electrodynamics_griffiths.pdf
- https://cdn.shopify.com/s/files/1/0430/1615/9385/files/93179734805.pdf
- https://cdn.shopify.com/s/files/1/0435/3762/9348/files/zogibefeludonuwifut.pdf
- https://static.usrfiles.com/ugd/b8c837_4b28dbd51aa849438d16c2af0ff31a96.pdf
- https://static.usrfiles.com/ugd/b8c837_01abae187c814641bd7c5b67a3d3278f.pdf
- https://static.usrfiles.com/ugd/b8c837_117d75b6444e4070a4938bab2526fbed.pdf
- https://static.usrfiles.com/ugd/b8c837_da99e3eadee44d1e975eaa4469a1a355.pdf
- https://static.usrfiles.com/ugd/b8c837_b8df395f89ca44448552ca8b3ca96768.pdf
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/dinobotepejibawesetosi.pdf
- https://cdn.shopify.com/s/files/1/0428/9773/5843/files/80369476870.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdf
- https://cdn.shopify.com/s/files/1/0433/5583/2471/files/rorulodaxudoj.pdf
- https://cdn.shopify.com/s/files/1/0431/6063/3504/files/ziziwabi.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_off00005eee.bin718bd436d0ac73d51d117acfb2aaa7bde9e9ddcf11e09dc2bd7114206a7989e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EEE | 5124 bytes |
font_01_sfnt_off00007039.binc1c2e4a71d9da57e5e51fe03ee85591efd9cf8c4082229fdee0b5507c1745032 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7039 | 11392 bytes |
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