MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.cc, which is presented as a "chopsticks easy piano music sheet" in the document body. This suggests a phishing or malware distribution lure. The PDF also hosts a large number of external links, many pointing to Shopify, which is indicative of a link farm used to obscure malicious intent. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence score support the malicious verdict.
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.cc/pify?keyword=chopsticks+easy+piano+music+sheet
- http://files.videoheads.co.uk/uploads/1/3/1/4/131408100/8c5dba02.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/0953/2316/files/bisiwukew.pdf
- https://cdn.shopify.com/s/files/1/0428/5962/6655/files/circulatory_system_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0432/9163/9974/files/logical_reasoning_questions_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/2402/3715/files/99530557163.pdf
- https://cdn.shopify.com/s/files/1/0432/5857/7046/files/vopaxir.pdf
- https://cdn.shopify.com/s/files/1/0431/7341/3028/files/metejujajuba.pdf
- https://cdn.shopify.com/s/files/1/0432/7941/7504/files/50341300217.pdf
- https://cdn.shopify.com/s/files/1/0428/4999/2860/files/konejuwevekukawurolobi.pdf
- https://cdn.shopify.com/s/files/1/0433/3905/5253/files/check_mark_alt_code.pdf
- https://cdn.shopify.com/s/files/1/0440/7685/9557/files/altova_xmlspy_tutorial.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_off00005ebc.binbd782673c35f005048fd2643c0c5e9480f0ec218460cffb84bee3b33a6bd52e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EBC | 5116 bytes |
font_01_sfnt_off00007001.bindf98106816dcb79787f8707ca89a0a249b3c156b53b280ed22290c616ec7287e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7001 | 9780 bytes |
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