Malware Insights
The PDF file exhibits malicious behavior through a high density of embedded links. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=speaking+activities+pdf+a1'. Another critical heuristic flagged the document as a PDF link farm, containing 17 external PDF links, predominantly hosted on cdn.shopify.com. The document body, though heavily obfuscated, also contains URLs similar to those found in the link farm. The primary attack pattern appears to be the creation of a link farm for SEO manipulation or to distribute malicious content through numerous redirectors.
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=speaking+activities+pdf+a1
- http://wibajak.kristenmeeceart.com/uploads/1/3/1/1/131163635/4654232.pdf
- http://files.frabranch159.com/uploads/1/3/2/6/132682848/bigakezuge.pdf
- http://files.personalizedlearningplaybook.com/uploads/1/3/1/1/131163914/7321109.pdf
- http://jarabek.peakperformanceprep.com/uploads/1/3/0/8/130874359/70fd92.pdf
- https://cdn.shopify.com/s/files/1/0430/1009/7313/files/50392265724.pdf
- https://cdn.shopify.com/s/files/1/0429/3564/8409/files/50131719139.pdf
- https://cdn.shopify.com/s/files/1/0434/9971/6770/files/zegosepit.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/xonolofunitaxufanijagukig.pdf
- https://cdn.shopify.com/s/files/1/0430/0016/8597/files/4518008427.pdf
- https://cdn.shopify.com/s/files/1/0437/9197/4549/files/das_kapital.pdf
- https://cdn.shopify.com/s/files/1/0437/9928/1821/files/quitclaim_deed_illinois.pdf
- https://cdn.shopify.com/s/files/1/0437/2316/1768/files/miramojokajumafizagowux.pdf
- https://cdn.shopify.com/s/files/1/0438/2998/5430/files/nelajofafaxowufejobi.pdf
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/74386065286.pdf
- https://cdn.shopify.com/s/files/1/0430/2598/9785/files/aaa_style_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/4658/3976/files/biblia_cristiana_comentada.pdf
- https://cdn.shopify.com/s/files/1/0430/3867/1010/files/niloledelotodawejubibilal.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_off0000640f.bindc8e5deaddc47d1c66c6b76576b1c5c5252554daa15b61c848418100c306d44c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x640F | 5476 bytes |
font_01_sfnt_off000076db.bind23a8b527155e4569e8b8c5a033c6e0f6bc95a70e4e71868a6c1096832ba910c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76DB | 9752 bytes |
font_02_sfnt_off0000988b.bin13bfcb68e75d5b8bd976777f18302115d28888e106da5401e7e5ec022d6fe1db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x988B | 9040 bytes |
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