MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains embedded links that point to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to "HTML 5 lesson notes" and includes the malicious URL. The ML classifier strongly indicates maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to known malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
-
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.
-
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.
-
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.
-
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=html+5+ders+notlar%25C4%25B1
- https://static.usrfiles.com/ugd/b8c837_6b1e24127d5c4175b889c175a960c520.pdf
- https://static.usrfiles.com/ugd/b8c837_9220537f8c364af78591351a6a777901.pdf
- https://static.usrfiles.com/ugd/b8c837_1c00696732ad4401bc664535a87739c7.pdf
- https://static.usrfiles.com/ugd/b8c837_17bd92d207f64c118ff2cb3aafd13f8f.pdf
- https://static.usrfiles.com/ugd/b8c837_3145514fadbc403c980e1205c7af80c7.pdf
- https://static.usrfiles.com/ugd/b8c837_ea29acf860ad4b81bda596425837867b.pdf
- https://static.usrfiles.com/ugd/b8c837_93ba3da61f764956aa760ba5357b868c.pdf
- https://static.usrfiles.com/ugd/b8c837_1a163df63cb24426ab56e83238a753d9.pdf
- https://static.usrfiles.com/ugd/b8c837_373e51d2c003456db1c69914a14cc01c.pdf
- https://static.usrfiles.com/ugd/b8c837_ea6993ee717a4ae3825905e4c241461b.pdf
- https://static.usrfiles.com/ugd/b8c837_feffc8b05cac426e9b17523a50164663.pdf
- https://static.usrfiles.com/ugd/b8c837_aed35aa1fc134d989308ae735df3f3d2.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_off00019a86.binebc0c66205eecaa15b97408e97b4ca266c1ef79c221d6a066ab8c4dd73ae161d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19A86 | 2884 bytes |
font_01_sfnt_off0001a4c5.bin260360b304053bfa34a0aaa7c5d607f6f54e6f25fca83f8f967b18dfa9cbb0c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A4C5 | 5088 bytes |
font_02_sfnt_off0001b5f7.binb5edf2b1e6d1f67e8412b0cdae0e718edff27759b9325ca47368990ebcd6452b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B5F7 | 12768 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.