MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL which is likely intended to lead the user to a phishing or malware distribution site.
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=smith+canonical+form In PDF document text
- http://files.englishappliedlinguistics.com/uploads/1/3/2/6/132681144/sevomotitu.pdfIn PDF document text
- http://sesefupi.wembdon-sunshiners.co.uk/uploads/1/3/0/8/130814297/9874719.pdfIn PDF document text
- http://files.greatnatureom.com/uploads/1/3/1/3/131398279/58e1c2a55f.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/1/0434/6255/7856/files/rofonemo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3437/6352/files/cds_2_2020_syllabus_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8561/0654/files/pidiparu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7257/7946/files/44505605648.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9648/8613/files/penorenutamozo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/fakojezefumapem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0423/0805/files/partitura_de_hey_jude_para_saxo_alto_en.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4444/6118/files/andreas_moritz_espaol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0513/2456/files/90893219756.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9072/9377/files/como_sacar_tu_certificado_de_secundaria_en.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6912/6309/files/29996296492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6984/8217/files/eos_70d_user_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8616/7702/files/sosutapazapujogozozen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tutokufumetuja.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_off00007899.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7899 | 5044 bytes |
SHA-256: 2baa4b5631e8ce5b7cc2d59ad7234c4b07437e8ea3c0c01b2435f5c3966bb019 |
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font_01_sfnt_off0000898d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x898D | 13124 bytes |
SHA-256: 132c8d091f2aea07d320a9b318a2e0afe6501dee79616ea7d5b5201dcfa81afc |
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font_02_sfnt_off0000b3cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3CF | 16380 bytes |
SHA-256: 7ae9ab78a93a53415642ac55f7ceb97e489e9166218561962f366efcd0fc1746 |
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