MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to appear as free sheet music, but the primary link redirects to a known malicious infrastructure. The ML classifier strongly indicated maliciousness, and the PDF structure includes a malicious redirector link. No scripts were extracted, but the document body and heuristics point to a social engineering lure to drive traffic to a malicious site.
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=sleigh+ride+trumpet+sheet+music+free+pdf
- http://files.portlandpipes.com/uploads/1/3/1/3/131382320/5383176.pdf
- http://files.slowcoachsydney.org/uploads/1/3/1/0/131070230/kapuzaz-sugesesoje-baduvu.pdf
- http://tisuk.chairpoetryevenings.org/uploads/1/3/1/4/131452883/7533191.pdf
- https://cdn.shopify.com/s/files/1/0430/2831/6313/files/disokuwen.pdf
- https://cdn.shopify.com/s/files/1/0433/7506/7297/files/vobejewifijisugubanafo.pdf
- https://cdn.shopify.com/s/files/1/0432/8567/6188/files/manuale_officina_majesty_250_dx.pdf
- https://cdn.shopify.com/s/files/1/0436/2895/3763/files/sunrise_sunset_boston.pdf
- https://cdn.shopify.com/s/files/1/0429/7791/9129/files/organic_chemistry_klein.pdf
- https://cdn.shopify.com/s/files/1/0433/0133/9304/files/69690900982.pdf
- https://cdn.shopify.com/s/files/1/0439/8986/0510/files/howto_get_anime_back_on_vyond_github.pdf
- https://cdn.shopify.com/s/files/1/0432/0336/2973/files/zugebuledigenexofez.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.pdf
- https://cdn.shopify.com/s/files/1/0431/0227/3697/files/14689396010.pdf
- https://cdn.shopify.com/s/files/1/0433/6369/6799/files/wilibepemozo.pdf
- https://cdn.shopify.com/s/files/1/0428/7230/7875/files/30936358609.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_off0000456c.bin2769a56d45fc3bd5249247864b7b2e3ea915d0a7937d4103a40ce5c0789be73d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x456C | 5464 bytes |
font_01_sfnt_off000057da.bin5d56103f9dc23af1cc693d95475cb53eb7faf13dbe3387d681f8de302cfb8cc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57DA | 10188 bytes |
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