MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to malicious content. One of the primary links, 'https://ttraff.ru/wix?keyword=mathematics+2017+hsc+answers', is flagged as a malicious redirector. 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=mathematics+2017+hsc+answers
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/9051/7917/files/forekisewajavo.pdf
- https://cdn.shopify.com/s/files/1/0432/2711/9784/files/ccpa_compliance_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/7228/2008/files/c_alias_template_function_specialization.pdf
- https://cdn.shopify.com/s/files/1/0435/5093/3143/files/xakafulataneselewasadev.pdf
- https://cdn.shopify.com/s/files/1/0461/7230/7609/files/recent_trends_in_educational_management.pdf
- https://static.usrfiles.com/ugd/b8c837_473943440a764100b3342c0fbc9bb6af.pdf
- https://static.usrfiles.com/ugd/b8c837_aca4c2f294084a67a36027cb9138f938.pdf
- https://static.usrfiles.com/ugd/b8c837_0f74c09834454f138e35feca0a06dcfe.pdf
- https://static.usrfiles.com/ugd/271e65_0b55c1dad5e04581a92e6cd17f617c3a.pdf
- https://static.usrfiles.com/ugd/89363e_c8a8bb0d0d7c48dc850335154f7e693a.pdf
- https://static.usrfiles.com/ugd/cf14a4_37a8ddd4a5d4439d928944229dcf42f3.pdf
- https://static.usrfiles.com/ugd/a43ec6_e080b7aefbeb4f38a6d764cfe12c8d22.pdf
- https://static.usrfiles.com/ugd/e5412a_6e49c527faa24d8a813a507ba159e509.pdf
- https://static.usrfiles.com/ugd/a86d68_fdfc37dbc94b477cb95b3fb377bfb91d.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_off000087a3.bin4f084e891abc7c5524fcf9524961d2e000256b05a072997cf3f397ef277d880d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87A3 | 5508 bytes |
font_01_sfnt_off00009a5f.bin1012b7f3eb3ff87dcde55c41d04598f9d76c6942ee40f106eca735830b4875c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A5F | 16416 bytes |
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