MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=enlaces+quimicos+bachillerato+pdf', which is flagged as a malicious redirector. The PDF_SEO_LINK_FARM heuristic indicates a deliberate attempt to create a link farm, likely for SEO manipulation or to host 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=enlaces+quimicos+bachillerato+pdf
- http://files.mallahdivinemallah.com/uploads/1/3/1/4/131437418/losavakivize.pdf
- http://modiru.hansaone.com/uploads/1/3/0/8/130813747/zenudasarido.pdf
- http://files.angusskiclub.com/uploads/1/3/0/7/130739949/d9cdf51bd23c465.pdf
- https://cdn.shopify.com/s/files/1/0429/1490/6279/files/nizap.pdf
- https://cdn.shopify.com/s/files/1/0431/8658/5764/files/92755871110.pdf
- https://cdn.shopify.com/s/files/1/0434/3765/4178/files/66880478842.pdf
- https://cdn.shopify.com/s/files/1/0433/2158/9913/files/52704707389.pdf
- https://cdn.shopify.com/s/files/1/0433/9325/3526/files/54351262275.pdf
- https://cdn.shopify.com/s/files/1/0434/8503/6708/files/dasiworotutin.pdf
- https://cdn.shopify.com/s/files/1/0433/8499/5991/files/febenemudepumevitosubobov.pdf
- https://cdn.shopify.com/s/files/1/0434/9581/7382/files/lukeroxoposojuw.pdf
- https://cdn.shopify.com/s/files/1/0431/1675/7153/files/xasovet.pdf
- https://cdn.shopify.com/s/files/1/0436/0205/1235/files/87610528353.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000733e.bin27e4ad5affd5d1b946969b90af8399d072aee42001444a82372c2562573775d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x733E | 5620 bytes |
font_01_sfnt_off00008624.bin14135cbded86ef72904bd3f9b8485b61ea530661dba583673dc87eea9c83884e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8624 | 12048 bytes |
font_02_sfnt_off0000ad2e.binbf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD2E | 16312 bytes |
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