MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1204.001 Malicious Link
T1566.002 Spearphishing Link
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on cdn.shopify.com, one of which is the first URL listed in the heuristic. The document body also contains the text 'Windscribe app for pc', suggesting a lure to install software or an extension. The SE_BROWSER_INSTALL_LURE heuristic further supports this, indicating the document's intent is to trick the user into installing something.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINKPDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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=windscribe+app++for+pc In PDF document text
- http://files.lensofmysoulphotography.com/uploads/1/3/0/9/130969841/tuxol.pdfIn PDF document text
- http://kupepun.nourajost.com/uploads/1/3/1/4/131406390/povipibakuraga_bubezufasa_sefogigenak.pdfIn PDF document text
- http://files.clearwaterninja.com/uploads/1/3/1/4/131453560/5195655.pdfIn PDF document text
- http://nefodo.lphschem.com/uploads/1/3/2/6/132682663/2679044.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8763/4338/files/cyclohexane_conformation_practice_problems.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9552/3485/files/la_importancia_del_bautismo_en_agua.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0463/7773/0209/files/cg_video_pagalworld.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2574/4540/files/article_370_35a_in_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7303/4657/files/beef_vegetable_stew_nutrition_information.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4445/2005/files/bronislaw_malinowski_biografia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0855/6182/files/my_airtel_recharge_app_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6979/0625/files/bikini_bottom_day_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1253/0081/files/kinesics_communication.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6579/4969/files/91436341045.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4224/9621/files/t-_shirt_order_form_template_free_blank.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7482/2043/files/simplifying_expressions_with_fractional_exponents_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7529/7689/files/sameluket.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000698d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x698D | 5272 bytes |
SHA-256: f583cdf97f03131fa12259fcba4c8f2b00f2b62bf4ebb15d014744fbc6145d91 |
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font_01_sfnt_off00007b7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B7D | 1936 bytes |
SHA-256: d2cd98eda3bb301c349f83497b116709750aa4c373c9bd198ee53ee8aab646d3 |
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font_02_sfnt_off000084bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84BF | 10532 bytes |
SHA-256: 5112be2b69764de506ee147e9be4c0356ec97dc5ed1d37bf744a241a144a2f87 |
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font_03_sfnt_off0000a906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA906 | 16144 bytes |
SHA-256: c5b81f703ebddc697e6824868dcd306aba919aa4c1ec28f594a83a04df97872b |
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