MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' suggest the document is designed to redirect users to harmful sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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/123?utm_term=cengage+unlimited+chegg
- https://cdn-cms.f-static.net/uploads/4375909/normal_5fb01d4c567e2.pdf
- https://puwexisafiza.weebly.com/uploads/1/3/4/5/134586360/9363695.pdf
- https://cdn-cms.f-static.net/uploads/4388413/normal_5fa471d174ba1.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/3ac279d1-61e9-407e-ab16-39dfbef75be0/99064189858.pdf
- https://uploads.strikinglycdn.com/files/6a8a683a-9bcd-4876-a01a-87e34c984088/bemivazixufazarawaz.pdf
- https://uploads.strikinglycdn.com/files/9a9acab5-924d-46bc-a97e-058c65b4c8f9/tolugumamulunozav.pdf
- https://uploads.strikinglycdn.com/files/3feaecb6-8d27-4e5e-912f-f72a32b2334e/12942456040.pdf
- https://s3.amazonaws.com/xukirizugukugi/nagudomilope.pdf
- https://uploads.strikinglycdn.com/files/a54c88c0-7892-41d8-a520-5edd550f4694/easy_recovery_essentials_windows_10.pdf
- https://s3.amazonaws.com/pasawexawinogad/baywatch_2017_parents_guide.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000be27.bin0452ec2b0c9fb6e30191e58a5175b67a83ee7fcaa0a00ff8589d5520ac066e86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE27 | 4984 bytes |
font_01_sfnt_off0000cef1.bin118667a9002a74b15cb44df187a54b16e9caad9e4aaf05df7fb497dfdcdf1fe8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEF1 | 10488 bytes |
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