MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.com/wix?keyword=brian+and+lois+porn'. The presence of a large number of external PDF links, many hosted on cdn.shopify.com and static.usrfiles.com, suggests a link farm or SEO poisoning attempt. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.
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=brian+and+lois+porn
- https://static.usrfiles.com/ugd/b8c837_b91b48a6a76541df97e01299ba7a0da1.pdf
- https://static.usrfiles.com/ugd/60933b_476c267b7aa449fa84fd5e2290dd7a41.pdf
- https://static.usrfiles.com/ugd/b8c837_04eb9e0fcc4344748837390be136e3eb.pdf
- https://static.usrfiles.com/ugd/71fd01_c7e0c0969a2c437e9852390ba2720276.pdf
- https://static.usrfiles.com/ugd/b8c837_8e9cc5ab94c448da854a1bd4eeb2081d.pdf
- https://cdn.shopify.com/s/files/1/0427/7652/7014/files/gofivogato.pdf
- https://cdn.shopify.com/s/files/1/0437/9167/9639/files/determine_buck_converter_efficiency_in_pfm_mode.pdf
- https://cdn.shopify.com/s/files/1/0431/3314/1146/files/fodatoli.pdf
- https://cdn.shopify.com/s/files/1/0431/6640/0666/files/autumn_leaves_trumpet_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0454/5445/9030/files/sivivuvexefiwanazutatutu.pdf
- https://cdn.shopify.com/s/files/1/0438/5269/3654/files/tegipewogefere.pdf
- https://cdn.shopify.com/s/files/1/0440/9065/4870/files/midiruditeludaxe.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_off00004a81.bin9c249433671dc54b8ddbf1883c52444eac2c02361df61a2e911eaf8cf1a78f3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A81 | 5004 bytes |
font_01_sfnt_off00005b88.bin1c541fe7427d53121c975907b523deb229e2cb4e668895ebd5fcde36b0bc6892 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B88 | 10240 bytes |
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