MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com and redirect through ttraff.ru. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms that ttraff.ru is known malicious infrastructure. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=grade+1+math+worksheets+pdf+free, suggesting a lure to entice users to click on malicious links.
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=grade+1+math+worksheets+pdf+free
- http://pogabep.17southband.com/uploads/1/3/1/4/131437423/ca0757ce06.pdf
- http://files.soireeseventsrentals.com/uploads/1/3/2/6/132681880/bizebubud.pdf
- http://files.extrordinarycounseling.com/uploads/1/3/1/3/131379948/09a2b9e.pdf
- https://cdn.shopify.com/s/files/1/0431/8245/7000/files/mizijuritopel.pdf
- https://cdn.shopify.com/s/files/1/0428/8577/5519/files/ligikutubutijes.pdf
- https://cdn.shopify.com/s/files/1/0431/9261/5073/files/58800755156.pdf
- https://cdn.shopify.com/s/files/1/0435/5011/3943/files/centripetal_force_lab.pdf
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/dowobezipudekawajesiwosi.pdf
- https://cdn.shopify.com/s/files/1/0431/0623/8613/files/57710794428.pdf
- https://cdn.shopify.com/s/files/1/0428/9812/9062/files/wuzoxeralu.pdf
- https://cdn.shopify.com/s/files/1/0431/3671/2861/files/midenojopod.pdf
- https://cdn.shopify.com/s/files/1/0434/3519/6566/files/xubises.pdf
- https://cdn.shopify.com/s/files/1/0432/9334/3899/files/mikodaweramazevetudu.pdf
- https://cdn.shopify.com/s/files/1/0427/8072/1311/files/pilizaxiwevaf.pdf
- https://cdn.shopify.com/s/files/1/0433/8833/8330/files/canon_rebel_t5_manual.pdf
- https://cdn.shopify.com/s/files/1/0434/1373/3534/files/vezobibuvebasezun.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_off00006346.bine2a25d2d54d648f5a66e0fe76021c14d5a03c64622fae54f4280c8190c994336 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6346 | 5488 bytes |
font_01_sfnt_off000075e3.bin81529dc94adb7292159c498e5778d860f7306c61396904271da3a8ac658468d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75E3 | 10600 bytes |
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