MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'drum sheet music' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to 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.cc/pify?keyword=when+the+levee+breaks+drum+sheet+music
- http://files.muumrose.com/uploads/1/3/1/4/131438137/83c5edcc44.pdf
- http://files.crtriathlon.com/uploads/1/3/1/8/131857315/413962.pdf
- https://cdn.shopify.com/s/files/1/0432/0896/6301/files/lubanekolifuzi.pdf
- https://cdn.shopify.com/s/files/1/0428/1666/7815/files/merete.pdf
- https://cdn.shopify.com/s/files/1/0430/2487/5674/files/13209419737.pdf
- https://cdn.shopify.com/s/files/1/0433/9564/5589/files/12751249280.pdf
- https://cdn.shopify.com/s/files/1/0434/5951/0425/files/13457075899.pdf
- https://cdn.shopify.com/s/files/1/0437/7319/8497/files/34538377490.pdf
- https://cdn.shopify.com/s/files/1/0429/1333/3411/files/kagukivatenax.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5309/files/60753093368.pdf
- https://cdn.shopify.com/s/files/1/0440/0631/0046/files/deninolumen.pdf
- https://cdn.shopify.com/s/files/1/0431/5322/7932/files/friendship_day_pictures_free.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_off00004e7c.binf81105c176521200ff6d7f563c7807637c2f5a22efe44935d79afda09f559245 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E7C | 5456 bytes |
font_01_sfnt_off000060d8.bind6e16299ece23cae9c01b790ea4e1ee5e48cd92f65b3fa255e21c7f67b9a6a99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60D8 | 9592 bytes |
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