MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is related to software serials, which is a common lure. The primary malicious URL identified is ttraff.com, which is used in conjunction with a keyword that further attempts to legitimize the lure. The file also exhibits characteristics of a link farm, with many URLs pointing to static.usrfiles.com.
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.com/wix?keyword=debut+video+capture+software+serial
- https://static.usrfiles.com/ugd/b8c837_b47c0721ac234d118d943dcd9daec2fc.pdf
- https://static.usrfiles.com/ugd/b8c837_ae7da68bce8846499a4a1e36268d7291.pdf
- https://static.usrfiles.com/ugd/b8c837_bc102151c145408da4fd1d363b2187d9.pdf
- https://static.usrfiles.com/ugd/b8c837_47e9a429be1e4763a90f3b4f09320ff2.pdf
- https://static.usrfiles.com/ugd/b8c837_c84418c1503d410ba113c80ac25457ed.pdf
- https://static.usrfiles.com/ugd/b8c837_ce054c7d533441bb908d312701f67b71.pdf
- https://cdn.shopify.com/s/files/1/0430/7465/0261/files/59142156035.pdf
- https://cdn.shopify.com/s/files/1/0431/6617/1293/files/kilefijafebirakobikavalo.pdf
- https://cdn.shopify.com/s/files/1/0440/6244/1622/files/verelek.pdf
- https://cdn.shopify.com/s/files/1/0435/5247/3252/files/snow_hey_oh_tab.pdf
- https://cdn.shopify.com/s/files/1/0435/2521/0263/files/apollo_munich_easy_health_premium_chart.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_off0000644c.bind5a70b7c13da15f82f56396eee25048fb3e6f3554d71530c5ed6100837b336dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x644C | 5440 bytes |
font_01_sfnt_off000076ec.bin5f9b3dca17db692f7dc9497ad3c2c21622f5610b3cef7641772bfb30c99a92e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76EC | 10640 bytes |
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