MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a redirector URL that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Precalculus enhanced with graphing utilities 7th edition free' and the malicious URL, suggesting a lure to a scam or phishing site. The PDF also contains a large number of external links, many pointing to Shopify domains, indicating a link farm for SEO manipulation or distribution.
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=precalculus+enhanced+with+graphing+utilities+7th+edition+free
- https://static.usrfiles.com/ugd/15cd4d_0fa90d1754ae44ffb562298063f7a142.pdf
- https://static.usrfiles.com/ugd/b8c837_dd2eee70ff68435f8f69e24793e08da0.pdf
- https://static.usrfiles.com/ugd/b8c837_a0d0e11fb6cf43d29792f026b4d63c22.pdf
- https://cdn.shopify.com/s/files/1/0436/8039/9510/files/13695569689.pdf
- https://cdn.shopify.com/s/files/1/0463/1052/3045/files/fedixukirurog.pdf
- https://cdn.shopify.com/s/files/1/0428/9354/1532/files/37728702500.pdf
- https://cdn.shopify.com/s/files/1/0449/8564/7272/files/ubuntu_ms_office.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdf
- https://static.usrfiles.com/ugd/e4ff69_56c4bdb3e2974a2da88cbc5fd5731ae2.pdf
- https://static.usrfiles.com/ugd/b8c837_03c0f31937d141bfbe664aea726c2791.pdf
- https://static.usrfiles.com/ugd/b8c837_4f0ef534d9c14e938ebf0f527d2bec38.pdf
- https://cdn.shopify.com/s/files/1/0449/0412/0475/files/sades_902_drivers.pdf
- https://cdn.shopify.com/s/files/1/0431/6640/0673/files/28810611396.pdf
- https://cdn.shopify.com/s/files/1/0438/6209/8085/files/mikedewur.pdf
- https://cdn.shopify.com/s/files/1/0434/0134/7226/files/vemidadajan.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_off0000483f.bind78ffe3af1f9b551b3d1b6ef97817b4d5742fcc98e9fcb0572d25b4fd5f3055d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x483F | 5592 bytes |
font_01_sfnt_off00005b4e.bin267303f398a6b8c3eeba3a903645132a793415c8987d2c754af48eaeacd7c95e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B4E | 10196 bytes |
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