MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on static.usrfiles.com. One of these links, however, redirects to a known malicious domain (ttraff.ru). This suggests a link farm designed to lure users to malicious content, potentially for further exploitation or phishing. The ML classifier also strongly flagged this PDF as malicious.
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=jackson+co.+needs+to+replenish+its+p
- https://static.usrfiles.com/ugd/87a178_5163d26106cc47a09fbbe306a4b1dbee.pdf
- https://static.usrfiles.com/ugd/f46427_e09ef7fd31b748808d9f5da66e2d1848.pdf
- https://static.usrfiles.com/ugd/de65f7_f438876db8554509a405996353ae4a92.pdf
- https://cdn.shopify.com/s/files/1/0428/1751/9772/files/android_accessibility_suite_off.pdf
- https://cdn.shopify.com/s/files/1/0435/4362/5880/files/bless_the_lord_with_me_chords.pdf
- https://cdn.shopify.com/s/files/1/0438/0616/3104/files/edible_plants_nz.pdf
- https://cdn.shopify.com/s/files/1/0435/6338/4991/files/dulux_paint_colour_chart.pdf
- https://cdn.shopify.com/s/files/1/0434/5053/2001/files/murofesaw.pdf
- https://cdn.shopify.com/s/files/1/0440/3786/5637/files/miziga.pdf
- https://cdn.shopify.com/s/files/1/0429/9322/1783/files/gimevifa.pdf
- https://static.usrfiles.com/ugd/b0b521_37b0ac4405df442eb039fad7a8b7bd4e.pdf
- https://static.usrfiles.com/ugd/b8c837_2c72a0f8ab2940409ed741619c74f9ba.pdf
- https://static.usrfiles.com/ugd/4b7290_e0e80288a3f4471884925142ec59bfbe.pdf
- https://static.usrfiles.com/ugd/b8c837_6e7907bb8ad34464a06d44978dde9dd4.pdf
- https://static.usrfiles.com/ugd/3ab5ed_1b8dc1edee37477c85b6a98ec04581e3.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_off00004ac2.bin0d1963ca0b72c147f3b4333b2f9b0b884fd4bddeaf47de5d1ec8fd82d8ead9e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4AC2 | 5248 bytes |
font_01_sfnt_off00005c8b.binf5d82985d0d91bbb1fa603677d555b2f5b2b1fb9b5bc250bb5fc3d4a59f803c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C8B | 9988 bytes |
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