MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The ML classifier strongly indicates maliciousness. The presence of a link farm heuristic further supports the malicious intent of distributing 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.ru/pify?keyword=can+you+use+ie+in+formal+writing
- http://files.drpaula-recentered.com/uploads/1/3/0/8/130874050/0faabb8c.pdf
- http://files.gnarwhallaby.com/uploads/1/3/1/4/131453268/7306827.pdf
- http://files.marisareneephoto.com/uploads/1/3/1/3/131380786/xodavuvikuje.pdf
- https://cdn.shopify.com/s/files/1/0433/4059/5355/files/17678604137.pdf
- https://cdn.shopify.com/s/files/1/0433/9426/9333/files/64860669345.pdf
- https://cdn.shopify.com/s/files/1/0434/1065/3338/files/46415177739.pdf
- https://cdn.shopify.com/s/files/1/0430/6989/8903/files/beers_criteria_list_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/0346/9221/files/17713538727.pdf
- https://cdn.shopify.com/s/files/1/0433/1628/1512/files/zuperuzasatob.pdf
- https://cdn.shopify.com/s/files/1/0429/9826/8065/files/pexogukimawuzanafagixo.pdf
- https://cdn.shopify.com/s/files/1/0427/4647/8759/files/apple_archive_utility_free.pdf
- https://cdn.shopify.com/s/files/1/0431/4615/0039/files/45577327488.pdf
- https://cdn.shopify.com/s/files/1/0429/7218/4732/files/zobelasojisurexuwujise.pdf
- https://cdn.shopify.com/s/files/1/0434/5423/4785/files/78765650657.pdf
- https://cdn.shopify.com/s/files/1/0463/4981/1869/files/measuring_matter_worksheet_answer_key.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_off0000604c.bin8470b651e48b709d486f0b4993f93f05fbe1b72d48c0413188184a972613cb81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x604C | 5188 bytes |
font_01_sfnt_off000071f7.bin5331049ef7c63ce3d69b257f1399eb595a9de9ccf1af30790df34a60e66819b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71F7 | 9620 bytes |
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