MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is likely the primary malicious payload delivery mechanism. The document body contains obfuscated text and the target URL, indicating an attempt to trick users into clicking through to malicious content.
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.cc/pify?keyword=bronchiectasis+nejm+pdf
- http://files.croissantandcovenice.com/uploads/1/3/1/4/131454270/weroxe_xelivaderodoj.pdf
- http://files.mississauganation.com/uploads/1/3/0/7/130775853/2645743.pdf
- http://files.northsouthhockey.com/uploads/1/3/1/4/131484328/375a9267ee3d.pdf
- http://files.kingstonwestdental.ca/uploads/1/3/0/7/130738596/aa41de0f.pdf
- http://files.stonevalleyarts.org/uploads/1/3/2/3/132303229/bedopuveguj_kevekij_sofezu_xoneb.pdf
- https://cdn.shopify.com/s/files/1/0432/1063/7476/files/vusowutolususezesezi.pdf
- https://cdn.shopify.com/s/files/1/0431/1416/8480/files/7790453172.pdf
- https://cdn.shopify.com/s/files/1/0433/4449/4750/files/kuxiv.pdf
- https://cdn.shopify.com/s/files/1/0435/5211/2803/files/76803249246.pdf
- https://cdn.shopify.com/s/files/1/0435/2435/8298/files/75761797577.pdf
- https://cdn.shopify.com/s/files/1/0431/3320/6682/files/gezuloxupiwededo.pdf
- https://cdn.shopify.com/s/files/1/0434/1540/4702/files/aristotle_athenaion_politeia.pdf
- https://cdn.shopify.com/s/files/1/0437/4790/1592/files/what_is_testng_in_selenium.pdf
- https://cdn.shopify.com/s/files/1/0433/7467/4083/files/80919713909.pdf
- https://cdn.shopify.com/s/files/1/0431/7177/4615/files/68629493648.pdf
- https://cdn.shopify.com/s/files/1/0430/3339/5353/files/zawulitekilalekukubem.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_off000072fa.bin3b063fe893e19bcf4d0722bf3c41e9e45b5543584b24b585081f210546d8acd0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72FA | 5276 bytes |
font_01_sfnt_off000084ad.bin012a59b2519cfa7fb2df37aecd6230a90dc05d24a13bcc0ec3c68a847fedcaa8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84AD | 14256 bytes |
font_02_sfnt_off0000b180.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB180 | 4324 bytes |
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