MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple links to redirector infrastructure, specifically `https://cctraff.ru/strik?utm_term=oldham+county+schools+start+date`, which is flagged as malicious. It also hosts a large number of PDF links, suggesting a link farm for SEO manipulation or phishing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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/strik?utm_term=oldham+county+schools+start+date In PDF document text
- https://nugemezan.weebly.com/uploads/1/3/4/3/134359438/rizepefonatove.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497079/normal_5fb39cb1165eb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373516/normal_5f8ca6e5e0c8f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378160/normal_5fbf52968e864.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4482023/normal_5fcb1f4e89c9f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416792/normal_5f9ba9e69accd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445541/normal_5fa2a3c5c98d8.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
- https://s3.amazonaws.com/mojivikapeti/97055983592.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc5066e104edf1d779b9afc/t/5fd05991a040431536bc6239/1607489938344/scary_granny_doll_the_horror_game_download.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc360b6bda9c57a97cdfd08/t/5fca5ca5faf9e00ac2426197/1607097509605/mudonine.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc1480d27a199023ab7f389/t/5fc80d63723ab40260527545/1606946147945/dash_mini_dog_treat_maker.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc7aee6504bb4653ce6e043/t/5fcdc01f24c49707d33ed884/1607319586312/50206312401.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0f0cad49dd12447345200/t/5fc51b7e9d7936484030aa16/1606753152776/harry_potter_goblin_actor.pdfIn PDF document text
- https://s3.amazonaws.com/xesigeze/video_cutting_application_android.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c133.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC133 | 5140 bytes |
SHA-256: 89b909ddf4e673ce52b3320df064baec4ef7296e23b7dcad1eb0b34ecb37a2ce |
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font_01_sfnt_off0000d28b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD28B | 10208 bytes |
SHA-256: 7d5196eb7380f40ddc3910ba67bd66962adb4fb3e3c652f8ef3f06d8acc34504 |
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font_02_sfnt_off0000f58e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF58E | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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