MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=avg+antivirus+full+protection+free'. This URL is presented in a context that mimics a free antivirus download, suggesting a social engineering lure. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic to distribute the malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=avg+antivirus+full+protection+free
- https://cdn.shopify.com/s/files/1/0431/4251/2797/files/zigakarafurumidinatesu.pdf
- https://cdn.shopify.com/s/files/1/0437/9967/5040/files/98128501091.pdf
- https://cdn.shopify.com/s/files/1/0434/3352/5400/files/sql_server_management_studio_manual_espaol.pdf
- https://cdn.shopify.com/s/files/1/0435/2340/8032/files/9810417120.pdf
- https://cdn.shopify.com/s/files/1/0432/1512/6685/files/92058196859.pdf
- https://cdn.shopify.com/s/files/1/0429/4678/9542/files/calculus_book_free_download.pdf
- https://cdn.shopify.com/s/files/1/0428/6621/3031/files/12579514792.pdf
- https://cdn.shopify.com/s/files/1/0437/6425/2823/files/debate_preparation_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0428/6103/5686/files/diy_wedding_invitations_templates_free.pdf
- https://cdn.shopify.com/s/files/1/0431/8330/8955/files/99262159030.pdf
- https://cdn.shopify.com/s/files/1/0431/4356/1376/files/68745631455.pdf
- https://cdn.shopify.com/s/files/1/0436/7178/1526/files/bekaboo_web_series_full_episode_1.pdf
- https://cdn.shopify.com/s/files/1/0429/2762/0249/files/29554490905.pdf
- https://cdn.shopify.com/s/files/1/0432/0044/6626/files/halloween_coordinate_picture_graphing.pdf
- https://cdn.shopify.com/s/files/1/0432/2548/1379/files/analog_and_digital_electronic_circuits.pdf
- https://cdn.shopify.com/s/files/1/0444/8894/9927/files/prentice_hall_algebra_2_answer_key.pdf
- https://cdn.shopify.com/s/files/1/0440/6925/7366/files/automatic_voltage_stabilizer_circuit_diagram.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_off00006c9b.bin8a6b1e6609e762c7e07b53a20fed49df4710d970a725738f9400afb16077895a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C9B | 5232 bytes |
font_01_sfnt_off00007e8c.bin5c690df38c90e8fbbae5141053d3974468980c30fc8761511863877aa14289f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E8C | 10420 bytes |
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