MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'punnett square practice worksheet' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many pointing to the static.usrfiles.com domain, which likely serves as a distribution point for further malicious content.
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.cc/wix?keyword=more+punnett+square+practice+workshe
- https://static.usrfiles.com/ugd/b8c837_1fdf14fbccdf47169eb3b1d1f1c95a63.pdf
- https://static.usrfiles.com/ugd/a18aa6_0081dbad84f34a1482cb21c401d3ff7d.pdf
- https://static.usrfiles.com/ugd/b8c837_784ab9ff4f1f49e38983d04f34a910e7.pdf
- https://static.usrfiles.com/ugd/b8c837_1dca233853b44c6e80c6aa52ceec16bc.pdf
- https://static.usrfiles.com/ugd/299074_190e61a6302a4a0e96e8f03de40d43b2.pdf
- https://static.usrfiles.com/ugd/b8c837_1e0d82353fcf42f18595ed52e8a2d523.pdf
- https://static.usrfiles.com/ugd/e2c250_c555e75571944702b99b55e0f02f2594.pdf
- https://static.usrfiles.com/ugd/38bf1f_a2f83815e748489182fe584c2a05503f.pdf
- https://static.usrfiles.com/ugd/b8c837_819118a326444b8eade3c2f2283f9890.pdf
- https://static.usrfiles.com/ugd/49be48_d11e0e4cd89143f0924bc829dd555c17.pdf
- https://static.usrfiles.com/ugd/493135_6e3ba18604d14532bd882772c60fe1dc.pdf
- https://static.usrfiles.com/ugd/299074_a3ba82c8a2b6425494cc1970304d9e29.pdf
- https://static.usrfiles.com/ugd/4b68be_e1ae84aa7cb84c8494640947c1c24678.pdf
- https://static.usrfiles.com/ugd/b8c837_f0ebfcabce4c4cf0a162a5a8fcf1f344.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_off00006249.bin3d878d15d22e8b31e61c2de68391068ec7643703c76eb8fdce65e277d74bfaa8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6249 | 5276 bytes |
font_01_sfnt_off00007452.binbf5b2301b82d13e8d3a8450f4721ed110fb5889e28de2708fedaac28c3fdf28a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7452 | 10160 bytes |
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