MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link that redirects to a malicious URL, disguised as an answer key. This is supported by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic and the embedded URL in the document body. The ML classifier also strongly indicated maliciousness. The file is likely a phishing lure to redirect users to 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.com/wb?keyword=vocabulary%20workshop%20level%20c%20unit%206%20answer%20key%20pdf
- http://files.huntsvillepsych.com/uploads/1/3/2/7/132712093/667508.pdf
- http://files.lorraineparishwriter.com/uploads/1/3/0/8/130873870/lobojixo.pdf
- http://files.granitecityhvac.com/uploads/1/3/2/6/132681976/4382118.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/5621/7750/files/38752455323.pdf
- https://cdn.shopify.com/s/files/1/0434/2353/1158/files/13656869595.pdf
- https://cdn.shopify.com/s/files/1/0434/4738/6268/files/37034547266.pdf
- https://cdn.shopify.com/s/files/1/0437/5353/7685/files/cch_tch_trang_online.pdf
- https://cdn.shopify.com/s/files/1/0432/5313/7576/files/japajesawel.pdf
- https://cdn.shopify.com/s/files/1/0440/0496/6565/files/microelectronic_circuits_6th_edition_solution_manual.pdf
- https://cdn.shopify.com/s/files/1/0427/4470/9276/files/54250738817.pdf
- https://cdn.shopify.com/s/files/1/0436/2731/5353/files/37334200943.pdf
- https://cdn.shopify.com/s/files/1/0434/6019/8557/files/jojivisatomusaref.pdf
- https://cdn.shopify.com/s/files/1/0431/1256/2849/files/tibuj.pdf
- https://cdn.shopify.com/s/files/1/0439/3703/8494/files/insertion_sort_javascript.pdf
- https://cdn.shopify.com/s/files/1/0428/6863/7862/files/pdf_printable_aa_attendance_sheet.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_off000047b8.bin6ef7e02a4c5a0aa983995583dba16cfab4044dd50531f87a764d58aec3cfdefc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47B8 | 5820 bytes |
font_01_sfnt_off00005b91.bin986b5fa9cf0e8c3e88acf9b9efaa650e333108637e8a9f6b62d1c94de0c6df05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B91 | 9700 bytes |
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