MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily corrupted, contains the target URL and appears to be a lure related to educational materials. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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/pify?keyword=bncc+pdf+ensino+fundamental+ii
- http://files.bampfa-sc.com/uploads/1/3/0/7/130738524/405bf.pdf
- http://kovered.dndentalcare.com/uploads/1/3/1/4/131405927/3e2bd1ec88.pdf
- http://files.jrsigningservices.com/uploads/1/3/1/4/131437848/bibapixejeteb-pekoko-winupujoxiperi-napedisakoborir.pdf
- https://cdn.shopify.com/s/files/1/0434/8110/4541/files/jakigi.pdf
- https://cdn.shopify.com/s/files/1/0430/0262/6202/files/52186798194.pdf
- https://cdn.shopify.com/s/files/1/0432/0549/2904/files/aptoide_minecraft_0._10._5.pdf
- https://cdn.shopify.com/s/files/1/0438/1540/3682/files/apexogenesis_journal.pdf
- https://cdn.shopify.com/s/files/1/0432/5687/3128/files/bobanuwitenurazugugajakul.pdf
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/64341052076.pdf
- https://cdn.shopify.com/s/files/1/0431/1190/7488/files/oracle_database_11g_pl_sql_fundamentals.pdf
- https://cdn.shopify.com/s/files/1/0432/8180/9566/files/40817828102.pdf
- https://cdn.shopify.com/s/files/1/0431/3861/3415/files/bapetilowopuru.pdf
- https://cdn.shopify.com/s/files/1/0428/9229/6359/files/korean_basic_learning_book.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vofelowuloluvazoriwonub.pdf
- https://cdn.shopify.com/s/files/1/0431/9405/6861/files/algorithm_and_programming_problems_and_solutions.pdf
- https://cdn.shopify.com/s/files/1/0432/1512/6685/files/ls_dyna_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/9341/7383/files/bluebeard_s_castle.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_off00006e1d.bin7720f48d8df341f9bed7e7fa018a08adf84321046a7c5ae6ccf8a33d62a0a63b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E1D | 5256 bytes |
font_01_sfnt_off00007ff0.bin186ea432fc761c3a019a7482600bbdce47e2a15272ea9d8a4f405f9b8a2cd3c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FF0 | 10420 bytes |
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