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.ru/wix?keyword=general+organic+and+biological+chemi'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the malicious URL, suggesting a lure for users interested in the specified academic subject.
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=general+organic+and+biological+chemi
- https://cdn.shopify.com/s/files/1/0434/6865/2697/files/cuda_8_ubuntu_16._04.pdf
- https://cdn.shopify.com/s/files/1/0435/7688/5416/files/affiliate_marketing_without_a_website.pdf
- https://cdn.shopify.com/s/files/1/0430/6360/7445/files/lewapuwejokokimuxuti.pdf
- https://cdn.shopify.com/s/files/1/0464/5866/7176/files/wasedujakamovawadum.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/bubunukobuvojukurajaz.pdf
- https://cdn.shopify.com/s/files/1/0434/3683/4981/files/keratetulotebape.pdf
- https://cdn.shopify.com/s/files/1/0434/1334/0316/files/kaxidalazinavoxatupesere.pdf
- https://cdn.shopify.com/s/files/1/0436/2040/1316/files/xamifepowibin.pdf
- https://static.usrfiles.com/ugd/d1d005_5c78abde6be54077af421c57b806bbd6.pdf
- https://static.usrfiles.com/ugd/1c8c6c_d08ab2b392044befb873cfcc2c13be5c.pdf
- https://static.usrfiles.com/ugd/b8c837_84afb516428d45e69379c618e354cae9.pdf
- https://static.usrfiles.com/ugd/accd1f_c574e2bbfa31403aaec5d02175589a25.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_off00009f29.binc4c1082bed51469181a929ea6cd71befd5c05ac38d46a30d5455d1b3f0aa883f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F29 | 5344 bytes |
font_01_sfnt_off0000b125.bind41a13a75c99a56bc197e454c46c9fc38a8abc542b354436fe4bd5655e7b5ad1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB125 | 10408 bytes |
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