MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to 'Let it go piano easy sheet music' and the malicious URL, suggesting a lure. The presence of numerous embedded links, many pointing to Shopify, further supports the idea of a link farm used for distribution or redirection. The ML classifier also strongly indicated maliciousness.
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.com/pify?keyword=let+it+go+piano+easy+sheet+music
- http://files.anjoybaskets.ca/uploads/1/3/1/3/131383649/3120355.pdf
- https://cdn.shopify.com/s/files/1/0432/3901/4562/files/87076581071.pdf
- https://cdn.shopify.com/s/files/1/0428/7257/0012/files/ansys_15_mechanical_apdl_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0436/9619/3686/files/wowisusutekowibevanufuw.pdf
- https://cdn.shopify.com/s/files/1/0432/5448/1056/files/91044234570.pdf
- https://cdn.shopify.com/s/files/1/0430/8264/5665/files/20434960700.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/xumomipa.pdf
- https://cdn.shopify.com/s/files/1/0434/4945/0661/files/zafubowa.pdf
- https://cdn.shopify.com/s/files/1/0439/3133/6859/files/dujewifixigibagopa.pdf
- https://cdn.shopify.com/s/files/1/0431/1960/7962/files/bhavans_college_merit_list_2020.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000782e.bin02a4e2506c4ccc0587c4204ef4353c816ae982def8d48f9b751fe05fdff0ac3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x782E | 5264 bytes |
font_01_sfnt_off000089fb.bin633514446d56655549e2de2fe37a435ee76576add5419ce1b1fb0490bad529d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89FB | 10448 bytes |
font_02_sfnt_off0000ae0f.bind973db94ba2c448c661c26f08d051ac794e7cb4f3c7daa33c2141e8036f071b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE0F | 16100 bytes |
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