MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to direct users to further malicious content. The document body, though heavily obfuscated, contains text that appears to be a lure for audio songs, combined with the redirector URL. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports a malicious intent.
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/pify?keyword=adhikaalai+kaatre+nillu+audio+songs
- http://files.nashvilleartinstallers.com/uploads/1/3/0/7/130738806/3497265.pdf
- http://files.detail4less.com/uploads/1/3/2/6/132681670/sumaxisijiwu.pdf
- http://files.amgilmorefineart.com/uploads/1/3/2/6/132682883/wabep-pinuzajozop-tamezadojaro-waxonexutezum.pdf
- http://novezot.darknight.ca/uploads/1/3/1/4/131454065/7f4fb89404.pdf
- https://cdn.shopify.com/s/files/1/0435/2393/2311/files/pelefabumuzuzos.pdf
- https://cdn.shopify.com/s/files/1/0430/2897/1681/files/85791764552.pdf
- https://cdn.shopify.com/s/files/1/0434/1828/8284/files/gaxugiz.pdf
- https://cdn.shopify.com/s/files/1/0432/5205/6227/files/65910819043.pdf
- https://cdn.shopify.com/s/files/1/0439/2045/7883/files/important_full_forms_computer.pdf
- https://cdn.shopify.com/s/files/1/0437/7519/7333/files/define_cloud_in_information_technology.pdf
- https://cdn.shopify.com/s/files/1/0434/1907/4716/files/64322290895.pdf
- https://cdn.shopify.com/s/files/1/0433/1126/7990/files/make_aol_my_homepage.pdf
- https://cdn.shopify.com/s/files/1/0435/6974/1983/files/centrifugal_water_pump_catalogue_pdf.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_off0000434c.bin62f682bfaa3332e30e4c61d54ae5265bc42bea204a12f1fce8bd1cf9a17ed9c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x434C | 5140 bytes |
font_01_sfnt_off000054b6.bincd22d5e82b32b60e5f6b8cc8924415bc96a6e4bc4664fd8ebd13a8d655b143dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54B6 | 9612 bytes |
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