MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a 'Wavepad free registration code'. This link, https://ttraff.ru/wix?keyword=wavepad+free+registration+code, is a critical finding and likely leads to a malicious site. The document also functions as a link farm, containing numerous external PDF links, many hosted on static.usrfiles.com, which is a common technique for SEO poisoning or distributing further payloads. The ML classifier strongly flagged this PDF as malicious.
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/wix?keyword=wavepad+free+registration+code
- https://cdn.shopify.com/s/files/1/0434/7055/3250/files/77878103746.pdf
- https://cdn.shopify.com/s/files/1/0428/1021/2519/files/punesodo.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/apollo_munich_easy_health_proposal_form.pdf
- https://static.usrfiles.com/ugd/cc15ef_1ea726f45ebc4e46b2c4495ff986eede.pdf
- https://static.usrfiles.com/ugd/e23fbb_0381e0c19b10448ca9bfc238e46f69ad.pdf
- https://static.usrfiles.com/ugd/b8c837_89d5308107374ac8927f28b604a1b444.pdf
- https://static.usrfiles.com/ugd/6df952_4b95f8fe5c114a95b86796d3f610a061.pdf
- https://static.usrfiles.com/ugd/b8c837_f5e59c406f5943ea85f6bfef37352d0f.pdf
- https://static.usrfiles.com/ugd/4b68be_b6bfcfcb56894b0a87fbb72348e7a59b.pdf
- https://static.usrfiles.com/ugd/003b86_481fa1989a6a46c8908f9a66e50e58e9.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_off00006e8c.bin384c93a9366a8b754f6a1ff5556f87c375013da9d32379e4d56da6eefa5682c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E8C | 5152 bytes |
font_01_sfnt_off0000802c.bin5e6ae6a1d964f00a0b85e866181e1b3aaf9c457664cf66ad5903eef201acb8de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x802C | 10084 bytes |
font_02_sfnt_off0000a2b6.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2B6 | 4324 bytes |
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