MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.me/wix?keyword=convert+decimal+to+percent+to+fraction+worksheet'. Additionally, it features a PDF link farm with numerous external links, many hosted on 'static.usrfiles.com'. The document body, though heavily obfuscated, contains the same malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.
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.me/wix?keyword=convert+decimal+to+percent+to+fraction+worksheet
- https://static.usrfiles.com/ugd/6350c7_bbaaf3c5405c44d3b2211e2ff749caa1.pdf
- https://static.usrfiles.com/ugd/e2f197_b85eb01ae06347d2969724b97a1dc4eb.pdf
- https://static.usrfiles.com/ugd/a4e402_34fec47843c84746872d51a73249c386.pdf
- https://static.usrfiles.com/ugd/b8c837_c207b765a0f34def87e54e84cc07233c.pdf
- https://static.usrfiles.com/ugd/8de238_1aecb8bf91b542dba7c471ae73001780.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/virexu.pdf
- https://cdn.shopify.com/s/files/1/0431/0319/1193/files/dragon_ball_fighterz_cell.pdf
- https://static.usrfiles.com/ugd/724bd4_3264ab856cb64250a936bdbf694d7ecd.pdf
- https://static.usrfiles.com/ugd/40512e_3eba5ae32a9741fabcf9da0bf68b6c9a.pdf
- https://static.usrfiles.com/ugd/5b9a87_727e2b2344a84f6da5900a892c2b740a.pdf
- https://static.usrfiles.com/ugd/724fb5_d7e235a91ec842e0afd81d45a656f9f1.pdf
- https://static.usrfiles.com/ugd/b8c837_af7994be4aa845fbb6f345b214f42294.pdf
- https://static.usrfiles.com/ugd/0047a4_fd7f043b72fa4c41a007252296ce0a13.pdf
- https://static.usrfiles.com/ugd/2e16aa_7d91ddcb474e4acfba4ae8e67934b13a.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_off00006f56.bin5d9e4a308b7d8847a18bf9f172b46e36877a2b4ed66f19f50faad01638506afa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F56 | 5516 bytes |
font_01_sfnt_off00008200.bin0eabc8e07e8ff4dc36375825e9802d5507c40ba7f5c5bf6298c9ac6a667a08de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8200 | 10272 bytes |
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