MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as a free book download. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to known malicious infrastructure. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary intent is to redirect the user to a potentially harmful site.
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.cc/wix?keyword=sylvia+day+books+free+download
- https://static.usrfiles.com/ugd/e745be_c799af0b9dd44245bf43b888f6c4b7d8.pdf
- https://static.usrfiles.com/ugd/b0b521_0a0ba695adf7444dae168a42b652ccf5.pdf
- https://static.usrfiles.com/ugd/b8c837_337896b70c954961bb4fec53f7b53413.pdf
- https://static.usrfiles.com/ugd/e73fea_7faae06a09d949f3a142da03a44eeab3.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.pdf
- https://static.usrfiles.com/ugd/b8c837_89a4ea3ff8a14ee09f582ce94b139d16.pdf
- https://static.usrfiles.com/ugd/b8c837_37dda59325b84745b1f6d33c61e9f468.pdf
- https://static.usrfiles.com/ugd/bfbc46_f7436f4ca8654a12b4a22ce6a0339a03.pdf
- https://static.usrfiles.com/ugd/b8c837_ed8fb8c4d8e64992a5596d31c00f3032.pdf
- https://static.usrfiles.com/ugd/ade4e6_a1d3eeb8e57f4cc8b1f1309b71667210.pdf
- https://static.usrfiles.com/ugd/8dde66_62e96d0be31440aab4157e4880ce07bf.pdf
- https://static.usrfiles.com/ugd/b8c837_2c354ab937614221a690f8e5650ebb8a.pdf
- https://static.usrfiles.com/ugd/b8c837_9663a0bee9fb4ecd91efa10551a8c3b6.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_off00007f14.bin42974ba0db467b7a3588a94c61588f390271ebc07de78689df70edbf5f503ca8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F14 | 5460 bytes |
font_01_sfnt_off000091ca.bindffb233c6706ca74c47b54b3123b2d9a99888915c728990b2506ab0c624db57a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91CA | 10148 bytes |
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