MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=amended+1120s+form'. This indicates the document's primary purpose is to redirect users to potentially harmful websites. The presence of a large number of external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.
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=amended+1120s+form
- https://static.usrfiles.com/ugd/8dde66_db8c508ef5cc46d8b9c60dfa48d63e57.pdf
- https://static.usrfiles.com/ugd/b8c837_86fce33d88d24af9b0187d99524497b9.pdf
- https://static.usrfiles.com/ugd/b47706_0b11590f233344748714d5c9f5094f21.pdf
- https://static.usrfiles.com/ugd/f967ac_48208ae0077f4941b4333035d0617cbd.pdf
- https://cdn.shopify.com/s/files/1/0432/5897/0280/files/95666805356.pdf
- https://cdn.shopify.com/s/files/1/0438/7989/1099/files/en_maima_peru_thanda_anjala_video_so.pdf
- https://cdn.shopify.com/s/files/1/0439/5555/2414/files/taxonomic_categories.pdf
- https://cdn.shopify.com/s/files/1/0434/2687/3509/files/pdf_rewriter_free_online.pdf
- https://cdn.shopify.com/s/files/1/0434/3640/8982/files/essential_english_grammar_in_use_3rd_edition.pdf
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/92864203037.pdf
- https://cdn.shopify.com/s/files/1/0429/8086/8255/files/english_pronouncing_dictionary_cambridge.pdf
- https://cdn.shopify.com/s/files/1/0434/3929/2577/files/connecticut_dmv_bill_of_sale.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xawifakupubegezixezo.pdf
- https://cdn.shopify.com/s/files/1/0434/4083/2678/files/51081377187.pdf
- https://cdn.shopify.com/s/files/1/0437/4170/8437/files/sasiserefopulobumigoziw.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_off000061e4.bin8b61e660224a6e12968ae2c0aee25283f36742ec88ccd2b5f0e74962a57443f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61E4 | 5128 bytes |
font_01_sfnt_off00007349.binfcea9d1537753903619b6051034f48b761b523433092def725d913a47ce5d57e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7349 | 10420 bytes |
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