MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though obfuscated, contains text suggesting it is an 'Eadms answer key biology', which is likely a lure. The presence of numerous external PDF links, many pointing to seemingly generated content, suggests a link farm used for SEO poisoning or distributing further 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.ru/pify?keyword=eadms+answer+key+biology
- http://nemir.texascountryweddings.com/uploads/1/3/0/7/130775732/nabum.pdf
- http://files.huntersroots.com/uploads/1/3/1/8/131871864/lajakareseb_mixetenijo_xegosebiva_tojel.pdf
- http://gugup.wakefieldpodiatrists.co.uk/uploads/1/3/1/3/131398101/9651453.pdf
- http://zasiguv.amereldas.com/uploads/1/3/0/7/130739223/688989.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/9906/2421/files/missing_letter_worksheets_for_kindergarten.pdf
- https://cdn.shopify.com/s/files/1/0430/7566/6073/files/zexosifuwagagiluvovejix.pdf
- https://cdn.shopify.com/s/files/1/0432/9183/6566/files/angielski_swka_chomikuj.pdf
- https://cdn.shopify.com/s/files/1/0429/9508/9559/files/zekoguwoxafixutizakoferij.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdf
- https://cdn.shopify.com/s/files/1/0431/6083/0116/files/gemezibesumipidupezelaw.pdf
- https://cdn.shopify.com/s/files/1/0431/0591/0935/files/rise_of_the_guardians_book.pdf
- https://cdn.shopify.com/s/files/1/0433/5842/1142/files/terry_eagleton_books.pdf
- https://cdn.shopify.com/s/files/1/0437/9394/0642/files/ministry_of_finance_indonesia_annual_report.pdf
- https://cdn.shopify.com/s/files/1/0440/2230/0822/files/enlace_quimico_metalico.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_off0000425f.bin044780da971e6a70df01e55260ce18ea59ba960ea70c099fe0c402b6c4e5eba3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x425F | 5500 bytes |
font_01_sfnt_off00005516.binff7a3cbab6615445fe1f9be43e2031319bedc8c44d52c4cb8b9e7a8f682da461 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5516 | 8396 bytes |
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