MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by an ML classifier and contains a significant number of embedded links, many pointing to a redirector service. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifies a link to ttraff.cc, which is known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates a mass external PDF link farm, suggesting a coordinated effort to distribute malicious content. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/wix?keyword=alphabetical+order+worksheets+2nd+grade, reinforcing the malicious intent.
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=alphabetical+order+worksheets+2nd+grade
- https://static.usrfiles.com/ugd/efb3f0_7a2fbf9567f446d6bc5ccc3a6416b1f3.pdf
- https://static.usrfiles.com/ugd/ee6770_f62968252ac747488a7ee0d6cefa72b7.pdf
- https://static.usrfiles.com/ugd/b8c837_f35a962480e54ace8f9c5c15881ffbbf.pdf
- https://static.usrfiles.com/ugd/a640e9_00a150d60f9e46f491b5afabfced93aa.pdf
- https://cdn.shopify.com/s/files/1/0435/8917/3411/files/79424377693.pdf
- https://cdn.shopify.com/s/files/1/0464/7705/0024/files/rerubekixofezinodamaverej.pdf
- https://cdn.shopify.com/s/files/1/0438/9486/6088/files/nurap.pdf
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/nipikujawemuvaj.pdf
- https://cdn.shopify.com/s/files/1/0430/2556/3799/files/bidosisuge.pdf
- https://cdn.shopify.com/s/files/1/0429/9109/1875/files/51912615434.pdf
- https://static.usrfiles.com/ugd/fd30ac_dd9c9ef2d7624c55915c60cca6b132ea.pdf
- https://static.usrfiles.com/ugd/3d0627_85f98dfd114149a99ba37e609c9f9a4c.pdf
- https://static.usrfiles.com/ugd/b8c837_b47872eb1fc74acd89e7d333ae2f581c.pdf
- https://static.usrfiles.com/ugd/e4bc37_6fb293690b814bbabbde205004d9e77a.pdf
- https://static.usrfiles.com/ugd/5e8de6_add6559d72574fde96bc6a8bb0bee2a5.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_off00006693.bin0649d533ee3a3dd0f36248bf0b902596be19e777ec4404a55d0320c9f41a3741 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6693 | 5752 bytes |
font_01_sfnt_off00007a29.bin4a592108bd7d44e20bcb7471d2933a16f29952a9cefdca2004f94bc0efc072f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A29 | 10076 bytes |
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