MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of embedded links, many of which lead to other PDF documents hosted on disposable domains, characteristic of a link farm. One of the primary links directs to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://dafemum.ru/wix?keyword=uca+cheer+nationals+2020+results In PDF document text
- https://cdn-cms.f-static.net/uploads/4500887/normal_602e826bb8a87.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426971/normal_5fd076d296418.pdfIn PDF document text
- https://pezevibasa.weebly.com/uploads/1/3/5/3/135306661/147568927571.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449987/normal_601bb31439c85.pdfIn PDF document text
- https://gizajowi.weebly.com/uploads/1/3/4/3/134314542/jodazomatuwuz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484835/normal_606013a9c11c7.pdfIn PDF document text
- https://zegoliro.weebly.com/uploads/1/3/2/3/132303320/9413679.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369322/normal_6017a2775edac.pdfIn PDF document text
- https://dutegonuguval.weebly.com/uploads/1/3/4/3/134310875/4440210.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485016/normal_60253efeb7d33.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390374/normal_603181f1812cf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486565/normal_6047e18e905ee.pdfIn PDF document text
- https://topuzuxet.weebly.com/uploads/1/3/0/7/130739133/nabotemuza_majewipi.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/15ee02ae-2f63-4871-85a8-73045b85eadd/sozubabapuken.pdfIn PDF document text
- https://86a9da1b-0b57-4b35-a77a-523886b904cd.filesusr.com/ugd/0d9a50_c8d304a377d642b9b15e0c20b0c049ac.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6026a3ce-2453-4283-a5b0-b800170027f0/ryobi_tools_prices.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/addb23ab-8c3c-43a0-bc80-846e00354b81/how_to_connect_lg_soundbar_to_subwoofer_without_remote.pdfIn PDF document text
- https://ede8a7a3-2377-4e09-926a-401222b31c25.filesusr.com/ugd/81c89d_4b147a6d2bb44777b425d144734622eb.pdf?index=trueIn PDF document text
- https://c504e2ef-f928-4e80-b5b1-fc05046f432e.filesusr.com/ugd/247f25_99a86297ea0e4ca0bac68d11ba4fe6dc.pdf?index=trueIn PDF document text
- https://04934832-22f3-474e-96de-b9d593e92251.filesusr.com/ugd/f390e7_2cc3176dc86c49fe8455921374ad181c.pdf?index=trueIn 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_off0000d3e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3E9 | 5152 bytes |
SHA-256: 20af87d9ee6c3cf4457d18784b0a30f494a60e19f5895599fe366f541dc0f970 |
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font_01_sfnt_off0000e565.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE565 | 10800 bytes |
SHA-256: f0421a40c6b9e4d5a3ea799c5da05ea62bb712af02db53c55956205025b4ffdd |
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