MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=ugc+net+eligibility+pdf'. The document body, though heavily obfuscated, also contains this URL and other links pointing to Shopify domains, suggesting a link farm used to obscure the true malicious destination. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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.cc/pify?keyword=ugc+net+eligibility+pdf In PDF document text
- http://files.dellsstp.com/uploads/1/3/1/3/131382595/9808037.pdfIn PDF document text
- http://files.ohioproperservice.com/uploads/1/3/2/6/132695694/8371137.pdfIn PDF document text
- http://migemexo.wellplannedadventures.com/uploads/1/3/1/0/131071164/2527523.pdfIn PDF document text
- http://files.arijadehairandmakeup.com/uploads/1/3/1/4/131483108/nesowopemiso.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/1/0436/1184/8861/files/proceso_de_enseanza_aprendizaje_del_idioma_ingles.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3437/0470/files/vutubo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8935/3120/files/basic_chemical_formulas_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lejozusuxawunulimedobina.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0151/1064/files/61406012472.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9280/3744/files/89596665725.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8260/3927/files/games_for_business_and_economics_roy_gardner.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/4455/6187/files/21470907731.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6050/1407/files/kamunanupibepuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0014/3770/files/ubuntu_init_d.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9227/1519/files/vaguzebolesosexab.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F84 | 5072 bytes |
SHA-256: 61db054ccaf5bc887409125d6d050c8351516bb907519689fcbd13a2f18fa611 |
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font_01_sfnt_off000070de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70DE | 10232 bytes |
SHA-256: 76e3eaa839aabf9895a470a222b8f2003bb81cc3d9b8c7bf4d58caf1b92adb11 |
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font_02_sfnt_off000093e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93E4 | 16164 bytes |
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e |
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