MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many of which are hosted on Shopify but appear to be part of a link farm. One prominent link, presented as a download for a 'biochemistry textbook pdf', redirects through 'ttraff.ru', which is flagged as malicious. This suggests a social engineering attack aiming to drive traffic to malicious sites, potentially for further malware delivery or phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.
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.ru/pify?keyword=biochemistry+textbook+pdf+download
- http://files.kzonebaseballsba.com/uploads/1/3/1/4/131437736/2310223.pdf
- http://files.tcnjcogdevlab.com/uploads/1/3/1/3/131380687/somikod.pdf
- http://files.raebirdcreations.com/uploads/1/3/0/7/130775393/wekuwujobofipo_sekemed.pdf
- http://files.drtadeusik.com/uploads/1/3/0/8/130873856/4d58f4626ef40d.pdf
- https://cdn.shopify.com/s/files/1/0431/8884/6753/files/jerafodasigosutezigaku.pdf
- https://cdn.shopify.com/s/files/1/0452/5791/6578/files/antibiotic_associated_diarrhea.pdf
- https://cdn.shopify.com/s/files/1/0437/1854/1480/files/athens_map_english.pdf
- https://cdn.shopify.com/s/files/1/0432/7895/8758/files/17912846976.pdf
- https://cdn.shopify.com/s/files/1/0440/5483/9461/files/86860284396.pdf
- https://cdn.shopify.com/s/files/1/0430/8746/2551/files/effects_of_globalisation_on_developing_countries.pdf
- https://cdn.shopify.com/s/files/1/0431/7318/3643/files/tobawilawazo.pdf
- https://cdn.shopify.com/s/files/1/0438/3821/0205/files/pavur.pdf
- https://cdn.shopify.com/s/files/1/0433/5206/4155/files/online_bitmap_image_to_converter.pdf
- https://cdn.shopify.com/s/files/1/0437/9541/5189/files/tisodiduxo.pdf
- https://cdn.shopify.com/s/files/1/0430/4217/7181/files/xiwedazod.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdf
- https://cdn.shopify.com/s/files/1/0437/1762/3957/files/97579391631.pdf
- https://cdn.shopify.com/s/files/1/0433/2145/8853/files/25765661937.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_off000053e4.binb82762122c5451d52902987c0d89a5655c31148ce54c88bbd682a94673b13948 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53E4 | 5908 bytes |
font_01_sfnt_off000067ee.bin3d004a314427f024c1c44a4bec96013907d3edb358c59852faa8b4117d6e87d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67EE | 9828 bytes |
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