MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many pointing to benign WordPress sites, but one critical link to 'ttraff.cc' is identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to free online PDF tools, which is consistent with the malicious redirector's purpose. 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.cc/wb?keyword=dividir%20de%20pdf%20online%20gratis
- http://files.anncarragher.com/uploads/1/3/0/8/130814066/397160.pdf
- http://files.animalfineart.co.uk/uploads/1/3/0/9/130969965/muxeru.pdf
- http://files.cherrywoodadventures.co.uk/uploads/1/3/1/3/131384567/8571882.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://liwaraga.files.wordpress.com/2020/07/fexexajakidikunotoso.pdf
- https://felorige.files.wordpress.com/2020/06/zuvifu.pdf
- https://nanesufated.files.wordpress.com/2020/06/71945061391.pdf
- https://bomixifago.files.wordpress.com/2020/06/65012091345.pdf
- https://vatudim.files.wordpress.com/2020/07/rixafatabaserot.pdf
- https://ririrowibafa.files.wordpress.com/2020/06/27697442006.pdf
- https://tumezup.files.wordpress.com/2020/07/sevipisolotedima.pdf
- https://cdn.shopify.com/s/files/1/0428/8380/9439/files/mapeva.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51106899687.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lezoxaxus.pdf
- https://cdn.shopify.com/s/files/1/0433/7922/8837/files/56953994935.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80789229335.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75901524911.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_off0000798e.bina56d0e56d5f3817550aa4d8b6ef8e58c894a06e3067a83e88a8b2758615b4a66 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x798E | 5056 bytes |
font_01_sfnt_off00008ad7.bin247fa6d07e464805bb89a658c9484e93dd718eefa01a65bc9987c45fed75703e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AD7 | 11432 bytes |
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