MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a social engineering lure, presenting itself as an admission circular to trick the user into clicking a link. This link, 'https://ttraff.ru/wb?keyword=bsmrau%20admission%20circular%202019-20%20pdf', is identified as a malicious redirector. The document also contains a large number of links to external PDFs hosted on Shopify, likely part of a link farm to improve SEO for malicious content. No scripts were extracted, but the primary attack vector is the malicious redirector link.
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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/wb?keyword=bsmrau%20admission%20circular%202019-20%20pdf
- http://files.desertblossompreschool.com/uploads/1/3/0/7/130738889/mogozusekadoj-xopowajixajaxo.pdf
- http://files.vaniteevogue.com/uploads/1/3/1/4/131453843/nafixiwuvada-vakiremutapepa-tifipipida-semelivow.pdf
- http://files.ywampotch.com/uploads/1/3/0/7/130738513/nufebozerifuxi_denadafopuge_dodalep_kuxine.pdf
- http://tufagozoz.vastcomtech.com/uploads/1/3/1/0/131070805/41cfe.pdf
- https://cdn.shopify.com/s/files/1/0427/9071/5548/files/kijowaleli.pdf
- https://cdn.shopify.com/s/files/1/0430/8231/7975/files/48482327930.pdf
- https://cdn.shopify.com/s/files/1/0432/0857/3088/files/40957024769.pdf
- https://cdn.shopify.com/s/files/1/0433/9728/3996/files/brand_equity_2018.pdf
- https://cdn.shopify.com/s/files/1/0432/9259/0236/files/toda_la_sangre_bernardo_esquinca.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdf
- https://cdn.shopify.com/s/files/1/0428/9023/1974/files/platelet_count_in_pregnancy.pdf
- https://cdn.shopify.com/s/files/1/0433/4800/0927/files/spell_compendium_3._5.pdf
- https://cdn.shopify.com/s/files/1/0430/0147/9321/files/42565909684.pdf
- https://cdn.shopify.com/s/files/1/0433/8706/0375/files/83066239855.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_off00005d19.bin1f4b20bbb09584e591a8d5d81a5fdbed7d8d67205d76f372d3ca0ab7c06c43f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D19 | 5864 bytes |
font_01_sfnt_off000070f2.bin8340dd218b2288fd94818bb2735b4d44e6f0b623938008533caa51cff0983fdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70F2 | 10284 bytes |
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