MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL `https://ttraff.club/wix?keyword=brm+institute+of+management+and+information+technology` is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links pointing to external PDF files, suggesting a coordinated effort to distribute malicious content or phish users. The ML classifier strongly supports the malicious verdict.
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.club/wix?keyword=brm+institute+of+management+and+information+technology
- http://files.mammothmoose.com/uploads/1/3/0/8/130874495/5815878.pdf
- http://delumofis.kansasenglish.org/uploads/1/3/0/7/130738764/zexugowovomevodo.pdf
- http://files.condzellasfarm.com/uploads/1/3/0/9/130969555/97c8dd5b0b0479.pdf
- https://static.usrfiles.com/ugd/3eb4bd_c02a26f8c5ef4d329f5f03b284feceb9.pdf
- https://static.usrfiles.com/ugd/d90490_6c1a976eadeb45bf82ccf124bb23caa9.pdf
- https://static.usrfiles.com/ugd/5e81b9_1bba36e655b2427a97bf3b3ad7782cc4.pdf
- https://static.usrfiles.com/ugd/6a44d8_f6fae67f6462485ba54a550e1d237c1c.pdf
- https://cdn.shopify.com/s/files/1/0434/7094/6456/files/35900901343.pdf
- https://cdn.shopify.com/s/files/1/0427/9648/2727/files/andrejevic_infoglut.pdf
- https://static.usrfiles.com/ugd/227d0f_80714ad38bfb4d07842a80a0feb68f09.pdf
- https://static.usrfiles.com/ugd/7ea8bb_fd9255b287a34575bbcfe41481fa4df7.pdf
- https://static.usrfiles.com/ugd/4dded2_b57ddac637494a5c83ac36054a29ca10.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_off00005a58.bin6c09886c2776d0525aa241aa4ef3be614a91a5084354ccb772483ba3ccb53b53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A58 | 5584 bytes |
font_01_sfnt_off00006d37.binaab968b7336ff07c50eea6a80eef39885af370baef3a3d79431107ae4db3f548 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D37 | 10904 bytes |
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