MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a remote-support lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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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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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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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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External URI info PDF_URIPDF contains an external URL action
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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://vilenefex.ru/123?utm_term=free++winrar+for+pc PDF link annotation
- https://cdn-cms.f-static.net/uploads/4415065/normal_6013bf5d0dc66.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450043/normal_604ee5a2a3611.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382414/normal_6015bccc3cf15.pdfIn PDF document text
- https://wovikuzejujitij.weebly.com/uploads/1/3/4/5/134506660/jozasuxowe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415081/normal_60545720a860c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4530070/normal_5fee773f67f4a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488346/normal_602ff4ed40521.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417526/normal_5fcaad98611cc.pdfIn PDF document text
- https://mamaganonofob.weebly.com/uploads/1/3/4/6/134602085/5188033.pdfIn PDF document text
- https://tesazosutev.weebly.com/uploads/1/3/4/7/134714215/2026878.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473031/normal_603f51138065b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474992/normal_604cc6f9b86ae.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489255/normal_5fc5f184084e9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387939/normal_601b6c621402c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409628/normal_60240da7bef09.pdfIn PDF document text
- https://kosipomorogimel.weebly.com/uploads/1/3/4/3/134307263/lawukunoligikime.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417037/normal_6047ca4a1a654.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421767/normal_5fe8ffe6e90a9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://12dd324c-696b-4d67-8c19-991f3eacec2c.filesusr.com/ugd/eeb7bd_5ef7578f03444a288edfd95ec3036d58.pdf?index=trueIn PDF document text
- https://d71fc03c-aea6-48f7-a990-8afffb22108d.filesusr.com/ugd/3de8a6_aed923832f0c488ab03f8729f39f944f.pdf?index=trueIn PDF document text
- https://5057b38b-f250-4925-a5fd-2dbc054a2c1f.filesusr.com/ugd/25ee37_e593541c32864abc910bb403e68871bc.pdf?index=trueIn PDF document text
- https://6c403777-3bdb-430d-a4ca-23d5788374d5.filesusr.com/ugd/e0034b_ef3ea7fc071f49528483d001c1bff0c6.pdf?index=trueIn PDF document text
- https://9b704b87-3668-414c-a24e-b30400fe0e33.filesusr.com/ugd/51c472_5c895e551dfe4ba9a17e02e9e527c335.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_off0000e2a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A0 | 4848 bytes |
SHA-256: 385abac7b7320696fe631febf9d3df5d20cfdde99bada7014056d86d61832899 |
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font_01_sfnt_off0000f346.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF346 | 11160 bytes |
SHA-256: 6d0024be80cec3e0e942baac3bae94d7d7cce8ae7f29c86b10ea25cd09594801 |
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