Malware Insights
The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.com/wix?keyword=descubre+1+cuaderno+de+actividades+comunicativas+answers', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting a deliberate attempt to lure users to a malicious site. The presence of numerous other links hosted on cdn.shopify.com, such as 'https://cdn.shopify.com/s/files/1/0437/9030/3393/files/rakavutizowe.pdf', indicates a strategy to disguise malicious activity within a large number of seemingly benign links.
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/wix?keyword=descubre+1+cuaderno+de+actividades+comunicativas+answers
- https://cdn.shopify.com/s/files/1/0437/9030/3393/files/rakavutizowe.pdf
- https://cdn.shopify.com/s/files/1/0431/5653/7495/files/java_version_8_update_171_free.pdf
- https://cdn.shopify.com/s/files/1/0436/0319/8114/files/ledezujoketej.pdf
- https://cdn.shopify.com/s/files/1/0429/4357/8278/files/greatest_showman_piano_sheet_music_free.pdf
- https://cdn.shopify.com/s/files/1/0431/8851/9074/files/formato_boda_civil_cdmx.pdf
- https://cdn.shopify.com/s/files/1/0430/2592/4249/files/vonamuxilizetefawobip.pdf
- https://cdn.shopify.com/s/files/1/0434/8618/3577/files/acicular_form_meaning.pdf
- https://cdn.shopify.com/s/files/1/0436/7525/4937/files/mekoxikenokutem.pdf
- https://cdn.shopify.com/s/files/1/0435/8130/9085/files/kunevojawogoxebu.pdf
- https://static.usrfiles.com/ugd/b8c837_33831c1fddeb48aea40e27317376388d.pdf
- https://static.usrfiles.com/ugd/e73fea_65350d36839b455e820351fa8dfdfd74.pdf
- https://static.usrfiles.com/ugd/b8c837_e4a94a6ddf6d452cbc41c039b8f8e669.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_off00004684.bin6ec1629e5b17f42588b3d7940cc5a69a6bce3cd1b32e256f34dde87defb24de5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4684 | 5396 bytes |
font_01_sfnt_off000058d9.bin4a808a9436d456cd6d0eb6c05a30be1a1ffb5d9341362c7707f443b562105074 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58D9 | 10816 bytes |
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