MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, suggests a lure related to a 'cancionero para guitarra pdf rock nacional'. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, likely for SEO manipulation or to distribute the malicious redirector. The primary IOC is the malicious redirector URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=cancionero+para+guitarra+pdf+rock+nacional In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://static.usrfiles.com/ugd/63022f_fa6b8fc4b8a14502aa0b00a421886dd5.pdfIn PDF document text
- https://static.usrfiles.com/ugd/33a16d_3806040fbc0c4e708c6ae9cbf388ffd5.pdfIn PDF document text
- https://static.usrfiles.com/ugd/26481d_6455c8625f654dca927b514dc548357a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4b7290_73a520d653ab4119acc17c6e415523f0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/3aca14_72a5386ca8754321b148243c1506ad0e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_78649abb3d80431f8a9bf0224a081a4f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/7c30af_e3a00d9c467c4a54a7f99ee3bed977a0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ef253e_c1c150c4a5ab4bd5b1880bf113f0970c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_74a5ce99115d458bb9fffb5bc40a766f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/57c819_a2a718f14b0f492dac98166b5d9a8739.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f63f29_6f0b6f1ee1d046dda20e163dedda0f2c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_58b5d391d825494a9a8833891b854cf2.pdfIn PDF document text
- https://static.usrfiles.com/ugd/374ce0_6362d7beb75f49e29e275f159d5e644a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/a31856_d0325210f53e46f1a961a9510d4ec3b1.pdfIn PDF document text
- https://static.usrfiles.com/ugd/eda9ba_c8577c5f0cae448dad2bfb9460d1fc7b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/2e4eb4_51aee505afe046018cb639765ff9c1e0.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006057.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6057 | 5116 bytes |
SHA-256: 98ae6fccc7b767ff33bc315cb9f2b0780098e8eea5736877d38f8f1b1a9aaa64 |
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font_01_sfnt_off000071d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71D0 | 11156 bytes |
SHA-256: 79f10af6d455a4a9ea3ac5ae9f6c1b67ab4fe12648ca819ed97c53642a83fe5b |
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font_02_sfnt_off0000964f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x964F | 16204 bytes |
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
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font_03_sfnt_off0000ab7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB7C | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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