MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates a direct link to malicious infrastructure. Additionally, 'PDF_SEO_LINK_FARM' suggests a large number of links, likely to manipulate search engine results or to host phishing content. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to educational materials.
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.ru/pify?keyword=common+core+sheets+dividing+fractions In PDF document text
- http://files.tarrellrodneycampbell.com/uploads/1/3/0/8/130874265/vetokozupafuwuwo.pdfIn PDF document text
- http://xazap.salsaritaslexky.com/uploads/1/3/1/4/131437601/firazadotowap_ratusoxurenavif_didokutazose_buwobapaxafuk.pdfIn PDF document text
- http://files.indestructibleglowbaits.com/uploads/1/3/1/4/131454024/982a977ae.pdfIn PDF document text
- http://misajane.mhwclub.com/uploads/1/3/1/3/131383483/2215718.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/1/0438/5928/0022/files/chaupai_sahib_with_meaning.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7361/7576/files/mumipezojegamitapo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0754/8326/files/95911460949.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7618/2426/files/vizelilelupujonojokix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7505/7302/files/dukofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1024/3230/files/quiznos_catering_menu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7699/3702/files/d_link_dir_655_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8518/5702/files/campbell_biology_test_bank.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7168/4252/files/77754730426.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0592/6809/files/fimal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0382/2755/files/catalogo_ngk_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9412/1379/files/90309959843.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5820/0729/files/1331310954.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_off00006162.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6162 | 5368 bytes |
SHA-256: 51474e0ebec430047ad78affae2bc0ccf50a0b76714f329d872f17cbe2ca3fa4 |
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font_01_sfnt_off00007374.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7374 | 1704 bytes |
SHA-256: f70e5b3f7dc93a2f60727bdac268a016b14c0173ca631c7038038158654df00c |
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font_02_sfnt_off00007bf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BF5 | 10212 bytes |
SHA-256: a11611806cd11163bcf81fe146e9dede9195e1b7707316c086f4af806f274777 |
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font_03_sfnt_off00009eff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9EFF | 16268 bytes |
SHA-256: 49f5dbd872ac4f4057ac265a5e2d4c1865afd07712219480748d744813068891 |
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