MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com. One critical heuristic identified a link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF files, suggesting a lure to external content. The primary attack pattern is to redirect users to malicious infrastructure.
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.ru/wix?keyword=mxgraph+javascript+examples
- https://cdn.shopify.com/s/files/1/0434/1910/7480/files/daweriwuvesiruvikani.pdf
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/76457036332.pdf
- https://cdn.shopify.com/s/files/1/0431/6728/5408/files/jetofevagisasinujasirafa.pdf
- https://static.usrfiles.com/ugd/9ff9b8_54a80f9246214126a5e474e442d08b19.pdf
- https://static.usrfiles.com/ugd/ea78e0_d0f46d842f924640aef893e0311fff96.pdf
- https://static.usrfiles.com/ugd/221f3a_f464be212fd74402a3914aed75e05ed7.pdf
- https://static.usrfiles.com/ugd/60933b_8b164b16f46b416697e8224e23d29b1d.pdf
- https://static.usrfiles.com/ugd/69b86f_c6044ae707fa4e709f1dc8d4e6ac2430.pdf
- https://static.usrfiles.com/ugd/b8c837_a247ac2ca8c245b2bf28c2fab86a24b4.pdf
- https://static.usrfiles.com/ugd/05900a_69d69bce65834695affac38f6d15116e.pdf
- https://static.usrfiles.com/ugd/b8c837_57c1918b72a2493d8bbad3dacda34398.pdf
- https://cdn.shopify.com/s/files/1/0432/2151/6445/files/convert_to_autocad_2014_free.pdf
- https://cdn.shopify.com/s/files/1/0438/0337/7824/files/86547112611.pdf
- https://cdn.shopify.com/s/files/1/0432/0316/6372/files/fortnite_chapter_2_week_3_challenges_guide.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_off00006bf7.bin92d2c51b3a08f75cd941a33c0cabeaf4ec9d58ec90be32f1702b493d2b04560a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BF7 | 5556 bytes |
font_01_sfnt_off00007ed7.bina24a0c183d65a319aa709283bbdcaea16cf650043f84ae5554e390f12605e87d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ED7 | 10372 bytes |
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