MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which, https://ttraff.ru/pify?keyword=la+tercera+palabra+alejandro+casona+libro+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
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=la+tercera+palabra+alejandro+casona+libro+pdf
- http://files.quabelle.com/uploads/1/3/1/4/131437330/85b197dcba.pdf
- http://files.tremaineh.com/uploads/1/3/0/9/130969935/lefir.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9737/5399/files/91344369046.pdf
- https://cdn.shopify.com/s/files/1/0435/9651/3448/files/11007268937.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdf
- https://cdn.shopify.com/s/files/1/0428/7217/6799/files/68470283301.pdf
- https://cdn.shopify.com/s/files/1/0431/5686/5173/files/jurum.pdf
- https://cdn.shopify.com/s/files/1/0434/7510/7990/files/80638471916.pdf
- https://cdn.shopify.com/s/files/1/0438/1592/7965/files/algebraic_multiplicity_and_geometric_multiplicity_of_an_eigenvalue.pdf
- https://cdn.shopify.com/s/files/1/0430/4266/8698/files/beta_oxidation_of_unsaturated_fatty_acid.pdf
- https://cdn.shopify.com/s/files/1/0429/3948/2275/files/vixiromasurutekugi.pdf
- https://cdn.shopify.com/s/files/1/0437/1811/5480/files/arcade_fire_reflektor_album_rar.pdf
- https://cdn.shopify.com/s/files/1/0435/2252/3288/files/tezosi.pdf
- https://cdn.shopify.com/s/files/1/0435/4985/1811/files/zaselizeduzomerogon.pdf
- https://cdn.shopify.com/s/files/1/0434/4627/2162/files/puzeromote.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_off00007084.bin4de70203bc800afc5ea092004b7ce4f75948ed1ee14c57c233a1c0ec99f0a38d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7084 | 5308 bytes |
font_01_sfnt_off00008294.bind2dce366e8ae7f747ddcd759e046b827d7e2a9b7c9decd231f32e63cab5ed65d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8294 | 11328 bytes |
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