MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/wix?keyword=compare+and+contrast+transition+word'. The ML classifier also 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/wix?keyword=compare+and+contrast+transition+word
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_d67d8056b5154b03857102a7e4b00ac6.pdf
- https://static.usrfiles.com/ugd/b8c837_e261fc6a85604b87890c33fb52107b63.pdf
- https://static.usrfiles.com/ugd/b8c837_d757f9cded0e4b08a6758a3d5a52a81b.pdf
- https://static.usrfiles.com/ugd/b8c837_0588d48a38b3407ba93de509ed60e423.pdf
- https://cdn.shopify.com/s/files/1/0430/9535/9642/files/71845418662.pdf
- https://cdn.shopify.com/s/files/1/0432/2977/3979/files/concepts_of_programming_languages_11th_edition_download.pdf
- https://cdn.shopify.com/s/files/1/0430/4899/2930/files/79467826365.pdf
- https://static.usrfiles.com/ugd/b8c837_c65af926c56240ddb3ca1dde6b75fe90.pdf
- https://static.usrfiles.com/ugd/b8c837_0033ea4452db4d5b989bf92049294be2.pdf
- https://static.usrfiles.com/ugd/b8c837_632b364a7a88422b98969ff5ccf9022e.pdf
- https://static.usrfiles.com/ugd/b8c837_6b6aa1f6836a47dfb7b7df5241736d61.pdf
- https://cdn.shopify.com/s/files/1/0429/7824/6815/files/sidofetamo.pdf
- https://cdn.shopify.com/s/files/1/0433/7437/9157/files/ganexodubol.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000624d.binbe2d8223ce00ec4a1c6255c61fcc0e574ef0710ecff46c37b5f3cb5e9032512d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x624D | 5184 bytes |
font_01_sfnt_off000073df.binaf3705ed0f350ab5dbcc384507550af5dd713d56c6f83c0f6204d9d0bc22483f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73DF | 10076 bytes |
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