MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a link disguised as 'Spoken english practice lessons pdf'. This link, https://ttraff.com/pify?keyword=spoken+english+practice+lessons+pdf, redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various domains, many of which are hosted on Shopify. The ML classifier strongly flagged this PDF as malicious.
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.com/pify?keyword=spoken+english+practice+lessons+pdf
- http://files.emeraldparkptsa.org/uploads/1/3/1/4/131407138/3757165.pdf
- http://files.phyris.co.nz/uploads/1/3/0/9/130969465/9e804.pdf
- http://files.caressasiu.com/uploads/1/3/0/7/130739081/3338557.pdf
- https://cdn.shopify.com/s/files/1/0434/8959/1461/files/nukukejikanapeman.pdf
- https://cdn.shopify.com/s/files/1/0434/0717/9941/files/runeperutetewakarolo.pdf
- https://cdn.shopify.com/s/files/1/0434/6544/1430/files/zifuvewumabuxuxeporiji.pdf
- https://cdn.shopify.com/s/files/1/0432/8800/2710/files/zejip.pdf
- https://cdn.shopify.com/s/files/1/0439/7016/6942/files/57572867962.pdf
- https://cdn.shopify.com/s/files/1/0429/8155/6375/files/76952032054.pdf
- https://cdn.shopify.com/s/files/1/0434/3182/1473/files/22974939111.pdf
- https://cdn.shopify.com/s/files/1/0428/9105/1161/files/xumuzanogilevusasulolim.pdf
- https://cdn.shopify.com/s/files/1/0433/7562/4350/files/mobepuzanonasedafi.pdf
- https://cdn.shopify.com/s/files/1/0428/4533/9814/files/digigovudut.pdf
- https://cdn.shopify.com/s/files/1/0430/9634/2695/files/nabewajuliwumasava.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_off00005d3d.binf9f74bc5f13e337543bbaf2b8c383a42e39f2d4f27946b925f90fcfb74df2513 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D3D | 5584 bytes |
font_01_sfnt_off00007037.bin18cf4b18ce74f934d31983e3b6ccd0f8f087a635e1b188873d96deb8c0903133 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7037 | 10544 bytes |
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