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=99+fletching+guide+osrs+2018'. Additionally, the PDF is flagged as a link farm, containing numerous external links, many of which point to 'static.usrfiles.com'. The ML classifier also strongly indicated maliciousness. The primary attack pattern is likely a lure to a malicious site via the redirector.
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=99+fletching+guide+osrs+2018
- https://static.usrfiles.com/ugd/6d45f6_c51eb368b453443683cec746a37e3d5b.pdf
- https://static.usrfiles.com/ugd/b8c837_6d9ff9cda2bc4181aee707072540467a.pdf
- https://static.usrfiles.com/ugd/5360f8_fe5180bf188c43249d3d988e4964f3ad.pdf
- https://static.usrfiles.com/ugd/87b9a8_1035b21be90e498a9a3d93e7e32397d1.pdf
- https://static.usrfiles.com/ugd/e948c1_01e48de125504aa49c4190e4befbdaa7.pdf
- https://static.usrfiles.com/ugd/b8c837_351a181d98fa4a3eb7301eebd9f2f107.pdf
- https://static.usrfiles.com/ugd/c1108c_9922172d5b1646dc8c6fa3f6dad99e5b.pdf
- https://static.usrfiles.com/ugd/b47706_d1c9e31cb1564fcf8cf5a73969a40cc3.pdf
- https://static.usrfiles.com/ugd/e5cbe5_2289355a2c8349aba1b8a2263e1a8ce0.pdf
- https://static.usrfiles.com/ugd/4dd980_d813e4f0b8314fbc99759e9181e2dc62.pdf
- https://static.usrfiles.com/ugd/12745a_48ad04f097274073971b431fc7a6ec14.pdf
- https://cdn.shopify.com/s/files/1/0432/7319/1588/files/google_chrome_pc_windows_10.pdf
- https://cdn.shopify.com/s/files/1/0431/3556/5990/files/nucleo_de_accumbens.pdf
- https://cdn.shopify.com/s/files/1/0430/8484/1124/files/67487426777.pdf
- https://cdn.shopify.com/s/files/1/0432/7541/9798/files/xunejazo.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_off0000715d.binad3f498de885558878937d6bdda56c191b1de899642cc3bea8335829148d2d50 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x715D | 5656 bytes |
font_01_sfnt_off0000849f.bin786207f3ed7828221f945ac4557ba24015f57bcc9614a010464f529eb8dc7e46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x849F | 10288 bytes |
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