MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links and text that direct users to a malicious redirector URL, disguised as a piano sheet music download. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or redirection scheme. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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=kiseki+roselia+piano+sheet
- http://files.iansturgess.co.uk/uploads/1/3/1/4/131437987/7044997.pdf
- http://files.amptheatreagency.co.uk/uploads/1/3/1/0/131071063/30a928e20257.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0448/0784/8096/files/autocad_full_course.pdf
- https://cdn.shopify.com/s/files/1/0433/8273/5006/files/rurudoboxoneguvi.pdf
- https://cdn.shopify.com/s/files/1/0437/1283/9834/files/21167469382.pdf
- https://cdn.shopify.com/s/files/1/0427/6423/9014/files/40569216647.pdf
- https://cdn.shopify.com/s/files/1/0438/8667/4088/files/altivar_21_user_manual.pdf
- https://cdn.shopify.com/s/files/1/0434/0265/7957/files/combat_magicka_regen_skyrim.pdf
- https://cdn.shopify.com/s/files/1/0431/1416/8480/files/aptis_listening_test.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005de2.bin8ca0e5c23c725cfd763130d053d0f19efdef91724bb14c2bed017e44353fa61c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DE2 | 23976 bytes |
font_01_sfnt_off0000a8ff.binb3b4f967a59096f3c5d37606214d671046709da28f69797a1b6b7b011d6173d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8FF | 4940 bytes |
font_02_sfnt_off0000b9bb.bina3a8017a0b7d43acd490544eece31756ed1065f455b1104914ff81bb0e4f8dad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9BB | 11808 bytes |
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