MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.9996
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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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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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://kuzutuzo.ru/wix?keyword=l4d+pingtool+apk+2019 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4374532/normal_601153928a38a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454171/normal_5fcd8339e2f48.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469103/normal_5fd70f1910bb1.pdfIn PDF document text
- http://ligovezedeje.iblogger.org/androidx_coordinatorlayout_gradle.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4462339/normal_5fe5ec02b4190.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://uploads.strikinglycdn.com/files/ad1d5fd0-de10-437f-8663-5a01a431ebd5/10701014545.pdfIn PDF document text
- http://jezuwujitek.epizy.com/como_citar_bibliografia_vancouver.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31bdaed4-206a-4f94-bda1-53a35993ff20/transformational_leadership_in_nursing_practice._british_journal_of_nursing.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/193c1e13-7fe7-4160-bc30-86fda0695233/how_to_use_innova_obd2_scanner.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/75cdd852-47e8-417a-be0d-3ad36fd9922e/94614483594.pdfIn PDF document text
- https://3dcfbd4a-ef33-49dc-a04a-0aaf5307c30d.filesusr.com/ugd/b47706_e4d6f8ce408940cbac4bfeca70e702fc.pdf?index=trueIn PDF document text
- http://pibubirokur.rf.gd/cessation_nation_apk.pdfIn PDF document text
- http://nulidofa.rf.gd/99314090760.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c8caaf17-4466-4c6f-8524-0de0fd9a33a7/xafevifuzarivuwesufib.pdfIn PDF document text
- https://6f847715-c85a-45d9-ae5c-7c68cc800588.filesusr.com/ugd/6e100b_f1bd7a72ab214233affc96c4d4859916.pdf?index=trueIn PDF document text
- https://383fd46b-cc41-47b7-9379-19c19d7bb1fe.filesusr.com/ugd/81c43a_76f25394c6e24d4c96b4cd7ad0e85f87.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/12b83b6a-8ff1-448f-92e3-983c049d00fa/zeluwesunobekalubukane.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e487c075-872c-45de-a17e-5b562ca5f7f9/88845668434.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/988571ca-a35b-48d0-acad-efc8b5f86228/89168864983.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00012bd5.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x12BD5 | 28116 bytes |
SHA-256: 90191cd90894637eb708f1ea28490bd20fcc16ba142cf1a1a4c7fb5225abc5fa |
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font_00_sfnt_off0000f4d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D8 | 5100 bytes |
SHA-256: 6f0df176e184549df13bcd41b1c74955bc2d7b195393aa9f0efcd316434406f4 |
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font_01_sfnt_off00010648.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10648 | 10908 bytes |
SHA-256: b4c070a7cd4a3db4f47d77b433a320ccff2fa2849e6796bad908aae3d9d10a3b |
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font_03_sfnt_off00015d72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D72 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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