MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to known malicious infrastructure, specifically `https://cctraff.ru/strik?keyword=lm+software+center`. This URL is flagged as a malicious redirector, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains a reference to this URL, reinforcing its role in the attack. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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?keyword=lm+software+center In PDF document text
- https://cdn-cms.f-static.net/uploads/4370076/normal_5f9574c2e4285.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366377/normal_5f90a4fb1c72e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415531/normal_5f9c2a9ef1070.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/33b6c972-ebd1-48bb-88f5-d6d2b1ffa3cf/87166241997.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/efecd619-d097-4c46-8607-1776cb2268ef/49909709501.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3f390165-7377-453e-b8fe-a4cb1ff54881/28322996047.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7dfe7d0f-e7de-4003-b57d-3c8dffa04819/42391931065.pdfIn PDF document text
- https://s3.amazonaws.com/nademopor/soldier_of_fortune_chords.pdfIn PDF document text
- https://s3.amazonaws.com/jamokaroxoj/78812881056.pdfIn PDF document text
- https://s3.amazonaws.com/sugosubexez/business_english_conversation_topics.pdfIn PDF document text
- https://s3.amazonaws.com/gomakobez/rfid_based_attendance_system_using_pic_microcontroller.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/217f636c-3c6d-4b52-96ba-a36e2e842b70/98161051193.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D94 | 5028 bytes |
SHA-256: 8dba47c006bbfd0da335d189445920511fc0c4718b992db486c80b4d31f0b6a8 |
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font_01_sfnt_off00007eac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EAC | 10136 bytes |
SHA-256: 53bb176765d66404136e60019a8b3d1514fe820283f0c8cabc86383443991eb3 |
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