MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector infrastructure known for hosting malicious content. The document body and heuristics indicate a lure for downloading files, likely to facilitate further malicious activity. The ML classifier strongly suggests malicious intent.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=allahabad+amar+ujala+news+paper+pdf In PDF document text
- http://files.zhuangguo94.com/uploads/1/3/1/6/131637372/2998644.pdfIn PDF document text
- http://files.aaronpuppe.com/uploads/1/3/1/4/131455543/51580a6745347.pdfIn PDF document text
- http://files.mosholudaycamp.com/uploads/1/3/1/4/131453871/nikezavexonigare.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6636/6869/files/adosphere_cahier_d_activits.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5258/1542/files/10501697283.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8412/7135/files/kenmore_sewing_machine_model_158.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3391/1705/files/8646398048.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8852/7013/files/najas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2715/2539/files/html_mailto_link.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75320426607.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2805/2130/files/kexawosum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9884/7896/files/guwomupaba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0506/7943/files/mejunepogiwijakan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4457/7178/files/nifumexawavojip.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
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000697c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x697C | 5224 bytes |
SHA-256: 4fdc9322333b5a12077b05f5c8de94539817cfc66da61437c7f4de8145ecadec |
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font_01_sfnt_off00007b1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B1C | 12152 bytes |
SHA-256: 4082b61c06a66c7a31b463643b280a99e556e4126417704c1b4253f2a8fd58e8 |
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font_02_sfnt_off0000a2f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2F5 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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font_03_sfnt_off0000b0f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0F5 | 5692 bytes |
SHA-256: db1e69ae29ad3704ad798c82c4f8b32d888824b28e97f2eeb0970809b62d1d5a |
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