MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by an ML classifier and contains a link to a known malicious redirector. It also features a link farm of numerous PDF files hosted on Shopify, with one specific URL pointing to a malicious redirector. The document body contains text related to 'jingle bells piano sheet music intermediate' and the wkhtmltopdf application, suggesting a lure to disguise the malicious intent.
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=jingle+bells+piano+sheet+music+intermediate
- http://repetak.creeksidecares.org/uploads/1/3/1/3/131398455/8127015.pdf
- http://gowolo.kandide.com/uploads/1/3/1/4/131482975/6d51d3aa5.pdf
- http://files.sherieunfiltered.com/uploads/1/3/2/8/132815961/a59b4b501cc8.pdf
- http://zixovi.georesource.co.uk/uploads/1/3/2/6/132696323/2947384.pdf
- http://files.chrisvanwyhe.me/uploads/1/3/1/8/131856991/3241658.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sekokejeninidifowabofu.pdf
- https://cdn.shopify.com/s/files/1/0436/2059/7923/files/advanced_javascript_tutorial_with_examples.pdf
- https://cdn.shopify.com/s/files/1/0431/5850/3573/files/supercapacitors_applications.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sozolomunegodufedawugiwe.pdf
- https://cdn.shopify.com/s/files/1/0434/6236/1245/files/zijuboligawusi.pdf
- https://cdn.shopify.com/s/files/1/0437/5727/3237/files/viregoxif.pdf
- https://cdn.shopify.com/s/files/1/0448/9605/9547/files/ajit_bharti_memory_trainer_book.pdf
- https://cdn.shopify.com/s/files/1/0432/7912/2587/files/say_it_aint_so_tab.pdf
- https://cdn.shopify.com/s/files/1/0434/1877/9800/files/25480908965.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_off000062e2.bin5a832235c055f70cbdbdbec404cde33390b82183195c3c45a36907353405d8ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62E2 | 5616 bytes |
font_01_sfnt_off000075b2.bin65e04d6c8db8b3921c98f7b10047f63668abeaf359c2d7f7419cbed102ab7dcd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75B2 | 10684 bytes |
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