MALICIOUS
128
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 pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is further contextualized by the document body's attempt to disguise itself as an English grammar exercise. The presence of a download button heuristic reinforces the social engineering aspect of the lure. The primary malicious IOC is the redirector URL.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=prepositions+of+place+exercises+pdf+perfect+english+grammar
- http://files.satindollsbundles.com/uploads/1/3/1/3/131381804/wilaweratowuw_wiremejat_budefu_dulip.pdf
- http://files.conresnet.org/uploads/1/3/1/4/131437657/bujetimonufigemipiz.pdf
- http://files.pellandconsutling.com/uploads/1/3/2/6/132681836/6417755.pdf
- http://files.bandsourceproductions.com/uploads/1/3/1/4/131408209/venituxixiwuvaw.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/norojakibi.pdf
- https://cdn.shopify.com/s/files/1/0435/3658/0759/files/71037279370.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdf
- https://cdn.shopify.com/s/files/1/0429/9145/2314/files/merewazamex.pdf
- https://cdn.shopify.com/s/files/1/0433/0360/0283/files/nalejifekidafokufowetuj.pdf
- https://cdn.shopify.com/s/files/1/0433/5989/5717/files/39825892241.pdf
- https://cdn.shopify.com/s/files/1/0432/4678/0566/files/kibipoji.pdf
- https://cdn.shopify.com/s/files/1/0432/9940/5977/files/20429937908.pdf
- https://cdn.shopify.com/s/files/1/0431/1384/0794/files/84977477067.pdf
- https://cdn.shopify.com/s/files/1/0430/3365/7507/files/xebosiwijozurev.pdf
- https://cdn.shopify.com/s/files/1/0434/8674/0646/files/gatufiruxabupaf.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_off0000526e.bin6ddb23e6e7552e90c8dd85b3a837ebdba037cc99fac51bda57f9e65033055be2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x526E | 5640 bytes |
font_01_sfnt_off00006575.bin791aef441726341d4d8a39ad37da8694aa3fd3f1a4d86c449b332ac5489db083 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6575 | 10060 bytes |
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