MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'Keysight power supply selection guide'. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a malicious site. The ML classifier 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/pify?keyword=keysight+power+supply+selection+guide
- https://static.usrfiles.com/ugd/9757e7_0006acc6c90343a6b04d9d2a746e38eb.pdf
- https://static.usrfiles.com/ugd/b8c837_5d26706714284b4f9fb624b41232f538.pdf
- https://static.usrfiles.com/ugd/29c71c_4635183981b04cf4aecffb991d07e078.pdf
- https://static.usrfiles.com/ugd/409ca8_6142e65860e345999892ff1bcbe6dd67.pdf
- https://static.usrfiles.com/ugd/7d21c0_1f91756b5a334030a0d1205743c32a63.pdf
- https://cdn.shopify.com/s/files/1/0430/4620/7637/files/kazasulamevub.pdf
- https://cdn.shopify.com/s/files/1/0440/9032/7205/files/75101877399.pdf
- https://cdn.shopify.com/s/files/1/0433/5514/4347/files/misiritafuximaguxoru.pdf
- https://cdn.shopify.com/s/files/1/0428/9983/2995/files/21150068190.pdf
- https://static.usrfiles.com/ugd/08fe48_b524f7aaa1134020b297820d47d930f9.pdf
- https://static.usrfiles.com/ugd/a48928_ffa88c6b347647008beb3ec04acf1408.pdf
- https://static.usrfiles.com/ugd/b7ed05_ac6f3b4861a3444baf45660c883f69f6.pdf
- https://static.usrfiles.com/ugd/82e28d_4ee38f9072b5430c8488888bcdc5e3dd.pdf
- https://static.usrfiles.com/ugd/01bc73_94adc0737fe345688187402d3dd5273f.pdf
- https://static.usrfiles.com/ugd/b8c837_f46c139bdfcd41d4b65fa8e75fc6a16c.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_off000043fa.bina98049acd027eb0f5aec2ffe36baacea0b27e5fb23fa038b11c358538e7917e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x43FA | 5288 bytes |
font_01_sfnt_off00005612.bin15949474887c603ae804c0afd31ac9fed28e93f0cde17c7d0c718a2e92d91fc9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5612 | 9296 bytes |
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