MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to lead users to malicious sites. The embedded URL points to a known malicious redirector, and the document body, though obfuscated, contains text that appears to be a lure related to sports predictions. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://cctraff.ru/aws?utm_term=bleacher+report+premier+league+predictions+week+4 In PDF document text
- https://cdn-cms.f-static.net/uploads/4373522/normal_5f8904ce1ad4a.pdfIn PDF document text
- https://vatewiwep.weebly.com/uploads/1/3/4/4/134482367/duvalasusidif.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405206/normal_5f949fad8d187.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470836/normal_5fc8053555b0e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447465/normal_5fe0cff2bbeef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478414/normal_5fb3252303111.pdfIn PDF document text
- https://netaxodesu.weebly.com/uploads/1/3/4/3/134367037/6de953.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/d492e649-738e-4b4f-8eef-201bf3c6458e/bolixijadovaxoraxuwoxuxef.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/58d3d708-bb78-4837-a96a-9d44ebf466e2/sotakedu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f394a4d-e75a-4a8f-bd21-9d6a54acd339/22454751342.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e464b086-7485-4a55-94c8-1432e4fd7330/72167064221.pdfIn PDF document text
- https://static1.squarespace.com/static/5fded181546cca2c41591fb2/t/5fdefc66ef735726d267a61d/1608449127066/conditional_formatting_multiple_criteria_google_sheets.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/39cf091b-0b02-4f45-badc-a5b53a3df7d4/sadotiwovuvakaluwupiw.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d5f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5F5 | 3136 bytes |
SHA-256: d7a74a8f7f5b6061d1704e49d55b25e97137b941398fa138ccd077d4d208d331 |
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font_01_sfnt_off0000e121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE121 | 5780 bytes |
SHA-256: 044042cddcf3ad45508b10155aff5aaa3d5fff7e62f62532bb824e3697a3861d |
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font_02_sfnt_off0000f4b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B7 | 3992 bytes |
SHA-256: f4e1d27519d84166c051593b14c674fcda384e2f4296a5030ffee7d53c9477b1 |
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font_03_sfnt_off0001040f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1040F | 11052 bytes |
SHA-256: e1cb8f81d6824dfaca83e6064921f9c9c4673a829ccc4269dbf15d500fd003c7 |
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font_04_sfnt_off000129cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129CF | 16932 bytes |
SHA-256: 001cb16a9c4c6e52296320e752560f2af0cc73bc9ba6591bf1b4f9fe3cfe357b |
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