MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One of these links, 'https://ttraff.ru/pify?keyword=biscuits+recipe+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other Shopify URLs, suggesting a link farm or SEO manipulation tactic. The primary attack pattern involves leveraging these links to redirect 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/pify?keyword=biscuits+recipe+pdf
- http://files.academyoffootballaustralia.com/uploads/1/3/0/7/130739697/fevolugu_xukev.pdf
- http://files.alexwilsonpianist.com/uploads/1/3/1/1/131164168/8375911.pdf
- http://files.revitalizefitnessnutrition.com/uploads/1/3/0/7/130776826/b5d44aa6d64.pdf
- https://cdn.shopify.com/s/files/1/0431/7439/6063/files/3173316212.pdf
- https://cdn.shopify.com/s/files/1/0439/2442/2811/files/mikopewaluwefasozojurukon.pdf
- https://cdn.shopify.com/s/files/1/0434/0645/9032/files/statistics_meaning_in_tamil.pdf
- https://cdn.shopify.com/s/files/1/0435/8212/8283/files/42549031448.pdf
- https://cdn.shopify.com/s/files/1/0438/0485/2386/files/challenger_deep_free.pdf
- https://cdn.shopify.com/s/files/1/0431/1531/5351/files/quaint_contraction_crossword.pdf
- https://cdn.shopify.com/s/files/1/0429/9322/1783/files/84958183393.pdf
- https://cdn.shopify.com/s/files/1/0431/8789/6488/files/benefits_of_integrating_technology_in_the_classroom.pdf
- https://cdn.shopify.com/s/files/1/0435/9749/6477/files/isolation_and_characterization_of_marine_actinomycetes.pdf
- https://cdn.shopify.com/s/files/1/0432/6768/6556/files/73311754406.pdf
- https://cdn.shopify.com/s/files/1/0440/4209/2694/files/lost_city_quest_osrs.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_off00005fde.bin359f3783455d811657837743f54612e183e8d509a969d28707da40c820e80349 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FDE | 4956 bytes |
font_01_sfnt_off000070c7.bin43a2b6d561e2a7d4d48b826946b2e8121b7c3a14554061f29f126e33112e87b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70C7 | 10072 bytes |
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