MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is designed to lure users with a fake 'Cambridge English book a2 pdf' search term. The document body, though heavily corrupted, contains the same URL and references to 'wkhtmltopdf', suggesting it was generated by a tool for malicious purposes. The presence of numerous external PDF links further indicates a link farm or redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=cambridge+english+book+a2+pdf
- http://files.fiveoaksswimclub.org/uploads/1/3/1/4/131452944/368726e5565d.pdf
- http://files.compressionsllc.com/uploads/1/3/1/4/131438501/99dde2e33b4.pdf
- http://files.purpleinkpublishing.com/uploads/1/3/1/4/131437844/mikofoxaxomojope.pdf
- http://josolovev.episcopalhawaiinews.org/uploads/1/3/1/4/131438641/ledaz_menasugivi.pdf
- https://cdn.shopify.com/s/files/1/0429/6074/8695/files/pejoriraxiputavinin.pdf
- https://cdn.shopify.com/s/files/1/0428/7817/3343/files/92661194772.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.pdf
- https://cdn.shopify.com/s/files/1/0431/9726/8128/files/sajimulodurowemux.pdf
- https://cdn.shopify.com/s/files/1/0428/1332/5471/files/mojegerutejukav.pdf
- https://cdn.shopify.com/s/files/1/0429/6910/4540/files/80992845587.pdf
- https://cdn.shopify.com/s/files/1/0428/4763/3575/files/47317924325.pdf
- https://cdn.shopify.com/s/files/1/0432/2584/1821/files/zenaxanopadomitolun.pdf
- https://cdn.shopify.com/s/files/1/0432/2626/7806/files/58701790956.pdf
- https://cdn.shopify.com/s/files/1/0429/7634/6266/files/jikasubopozu.pdf
- https://cdn.shopify.com/s/files/1/0430/6586/8437/files/bernard_baruch_my_own_story.pdf
- https://cdn.shopify.com/s/files/1/0432/0421/4942/files/54939278001.pdf
- https://cdn.shopify.com/s/files/1/0448/1341/8662/files/econometrics_by_example_free_download.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_off000046dd.bin3df10b07f8ed16b27eddef85724e3b96e81bde1e3787fba45c54271f31c0e494 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46DD | 5524 bytes |
font_01_sfnt_off0000596f.bin7e2a68ac93c1dca742e134b615971e8fecad2c58e0da47f2a70eaac271b8a436 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x596F | 9744 bytes |
font_02_sfnt_off00007abb.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ABB | 4324 bytes |
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