MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a worksheet. The document body and embedded URLs suggest a lure to trick users into clicking the malicious link. The ML classifier strongly indicated maliciousness, and the PDF structure includes a link farm, further supporting 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=solving+systems+of+linear+inequalities+worksheet+pdf
- http://files.ella-day.com/uploads/1/3/0/7/130776447/nuwotusakugojesivan.pdf
- http://files.felixschuster.org/uploads/1/3/0/8/130873838/nofisofejamin.pdf
- https://cdn.shopify.com/s/files/1/0429/2273/7830/files/43250147187.pdf
- https://cdn.shopify.com/s/files/1/0437/9970/7810/files/11693215321.pdf
- https://cdn.shopify.com/s/files/1/0430/4361/8965/files/meaning_and_definition_of_democracy.pdf
- https://cdn.shopify.com/s/files/1/0430/8179/3698/files/atos_administrativos_resumo_para_concurso.pdf
- https://cdn.shopify.com/s/files/1/0435/2881/4741/files/infosys_aptitude_test_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0437/9069/6597/files/voragugefavinuxo.pdf
- https://cdn.shopify.com/s/files/1/0433/0792/5654/files/85438929622.pdf
- https://cdn.shopify.com/s/files/1/0431/4162/8072/files/jitidavovitazetegazubez.pdf
- https://cdn.shopify.com/s/files/1/0432/0637/7632/files/labuxagapuvepebazirefuvu.pdf
- https://cdn.shopify.com/s/files/1/0450/6897/6291/files/york_air_cooled_chiller_catalogue.pdf
- https://cdn.shopify.com/s/files/1/0432/4343/8244/files/gm_navigation_secret_menu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca93.bindd7b880f1c6958317b71933e3175eb4154b1281d355b69180e4ce829e506ee21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA93 | 2828 bytes |
font_01_sfnt_off0000d48d.bin1f03d8e38cb541d1debb612b5b1f59269683da48cd8c69cef9bbe3f1b4db9376 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD48D | 6000 bytes |
font_02_sfnt_off0000e8e1.bin069ccdf04c17190cde47b3340a155b0fdd41e00ba0e81e276f71d93f1ca3634d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8E1 | 10120 bytes |
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