MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the URL https://ttraff.com/pify?keyword=cetoacidosis+alcoh%25C3%25B3lica+pdf is part of known malicious infrastructure. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.
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/pify?keyword=cetoacidosis+alcoh%25C3%25B3lica+pdf
- http://files.upinsmokemb.com/uploads/1/3/2/7/132740586/7283876.pdf
- http://files.willowfree.ca/uploads/1/3/0/7/130740344/xiwodufa.pdf
- http://files.matusnursingreview.com/uploads/1/3/2/6/132682681/4752324.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/4578/1665/files/4369726130.pdf
- https://cdn.shopify.com/s/files/1/0428/8885/5718/files/upsc_prelims_2019_answer_key_ias_parliament.pdf
- https://cdn.shopify.com/s/files/1/0428/4933/7507/files/blank_dd214_form_download.pdf
- https://cdn.shopify.com/s/files/1/0430/5495/6695/files/annealing_normalizing_quenching_and_tempering.pdf
- https://cdn.shopify.com/s/files/1/0429/8548/8543/files/nikufebupivas.pdf
- https://cdn.shopify.com/s/files/1/0437/5409/4753/files/13242742961.pdf
- https://cdn.shopify.com/s/files/1/0432/1217/7572/files/jipalutuna.pdf
- https://cdn.shopify.com/s/files/1/0431/6086/2882/files/37184436112.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_off0000606b.bin8649f4d7cf1ba26c30e137f3b5d907e7ca30e4128e2a3c28ac6c3bd8fdbce57f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x606B | 5188 bytes |
font_01_sfnt_off000071c8.bina6fd266a0c997ec22829395d191beee0fea0da893f127a5bd14fa9b67ebeb2d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71C8 | 10908 bytes |
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