MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded URLs that point to a redirector service, which in turn links to a large number of other PDFs. The document body, though heavily obfuscated, contains text suggesting a lure related to the "Guinness book 2019 pdf". The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms a malicious intent to direct users to potentially harmful 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/wb?keyword=guinness%20book%202019%20pdf
- http://files.fitznells.co.uk/uploads/1/3/1/3/131382955/362b8b36c4d9.pdf
- http://files.jmdigitalphotos.co.uk/uploads/1/3/1/6/131606758/kewajebugar.pdf
- http://vulifu.thequiltingretreat.com/uploads/1/3/1/3/131380600/miwisozakojabadujon.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/2331/8686/files/68036654890.pdf
- https://cdn.shopify.com/s/files/1/0433/5144/1560/files/vedebizilur.pdf
- https://cdn.shopify.com/s/files/1/0437/5560/2078/files/91962046004.pdf
- https://cdn.shopify.com/s/files/1/0433/5478/3893/files/74326711822.pdf
- https://cdn.shopify.com/s/files/1/0428/0988/4838/files/93593606359.pdf
- https://cdn.shopify.com/s/files/1/0431/0496/0676/files/11838620538.pdf
- https://cdn.shopify.com/s/files/1/0428/7424/1187/files/89864615284.pdf
- https://cdn.shopify.com/s/files/1/0428/2338/5247/files/bulokisosimofifabe.pdf
- https://cdn.shopify.com/s/files/1/0431/9245/1232/files/fapiwegip.pdf
- https://cdn.shopify.com/s/files/1/0429/7244/6873/files/14308699440.pdf
- https://cdn.shopify.com/s/files/1/0429/4960/7590/files/32914748004.pdf
- https://cdn.shopify.com/s/files/1/0449/0733/1739/files/dc_circulator_route_map.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_off000087ea.binafd8b38fc2672c3b2c0cdc9d9c5d1142488b22b4083ba88dc4735437ab39a8ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87EA | 5416 bytes |
font_01_sfnt_off00009a6d.bin0ad58de35caaa8561d5585e04116f462ef194605064a79a365990fb2ae2d5e8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A6D | 10500 bytes |
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