MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to a URL that mimics a free streaming service. This URL is presented within the document body, suggesting a social engineering tactic to trick users into clicking. The presence of numerous external links, many pointing to benign-looking PDFs hosted on static.usrfiles.com, indicates a link farm strategy, likely to improve search engine ranking or distribute traffic. The ML classifier strongly supports the malicious nature of this PDF.
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=watch+trolls+online+free+megashare
- https://static.usrfiles.com/ugd/b8c837_dfb3f0fb8f694c62ba1aebb548656911.pdf
- https://static.usrfiles.com/ugd/b8c837_07946f6620f94690a33f122be990c259.pdf
- https://static.usrfiles.com/ugd/b8c837_2734c83abdf44af1a55532e2184037fa.pdf
- https://static.usrfiles.com/ugd/b8c837_82eff5da619c43febc61b3dbc129ae41.pdf
- https://cdn.shopify.com/s/files/1/0429/7218/4732/files/70453606716.pdf
- https://cdn.shopify.com/s/files/1/0438/4561/5766/files/dobajojizunijiwutako.pdf
- https://cdn.shopify.com/s/files/1/0437/3364/7525/files/fevumasokateputokimiwe.pdf
- https://cdn.shopify.com/s/files/1/0431/6259/9584/files/26670765535.pdf
- https://cdn.shopify.com/s/files/1/0432/2741/4696/files/types_of_inorganic_compounds.pdf
- https://static.usrfiles.com/ugd/b8c837_63f930eeefe54607b2a09fbba739838f.pdf
- https://static.usrfiles.com/ugd/b8c837_2add61c2764c44468a3083442cb4b740.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_off000065c2.binb2fe3169eb5ca2ae9b85b1606fbf4f858dddd319cf71e42c7fec25f658ff4f6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65C2 | 5308 bytes |
font_01_sfnt_off000077ad.binab016e586e918ffa31491c6f517bd46ee546033ce4246cc71a737417586de0ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77AD | 10608 bytes |
font_02_sfnt_off00009c38.bin467334b253c03183b8f59c8c7859f446a4d85e3bd71546e4bc7697603d08a064 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C38 | 16120 bytes |
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