MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The primary external URL observed is https://vilenefex.ru/award?keyword=angielski+dla+dzieci+pdf+chomikuj, which appears to be a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://vilenefex.ru/award?keyword=angielski+dla+dzieci+pdf+chomikuj PDF link annotation
- http://noxaduva.mypressonline.com/24348061014.pdfIn PDF document text
- http://xivoxuvawet.iblogger.org/fonusuxikekufibuxogewup.pdfIn PDF document text
- http://veruvipavopa.getenjoyment.net/99752783778.pdfIn PDF document text
- http://pagexanomala.22web.org/two_branches_of_mathematics.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_35d23dd2e88c41bbb538aca4b459e32f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5bbea929-f515-49be-b391-e927d3b1f6c7/debiginede.pdfIn PDF document text
- https://9eaa565e-fb97-40b4-b096-d6760803f699.filesusr.com/ugd/55e2c6_dedd4fc42b92422da1b3304769bf390e.pdf?index=trueIn PDF document text
- https://57933e30-1e86-4cbe-ad2b-777cb72f9932.filesusr.com/ugd/235f1a_eebfb548a0854bb3af552915fa28704d.pdf?index=trueIn PDF document text
- https://7a9095e9-4ba3-4ff7-9406-a75d0382ce8a.filesusr.com/ugd/db93e9_11e5c7d3ce564df6bf55932be75d60d2.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6bf9e34f-bb09-4823-ad5d-5195803ec022/2010_toyota_camry_for_sale_houston_tx.pdfIn PDF document text
- https://s3.amazonaws.com/bejokazemur/demonetisation_gd_topic_with_answer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/539602e5-bf4b-44ad-8144-ca8c954df8b8/36951919890.pdfIn PDF document text
- http://mukanebesiva.atwebpages.com/best_place_to_see_saguaro_cactus_near_phoenix.pdfIn PDF document text
- https://ce099f17-eb12-430b-a452-8d789b3ee5a8.filesusr.com/ugd/aef5b7_3c6be18c13f34eb781100293a710ed68.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nonabafat/different_types_of_surgical_knots.pdfIn PDF document text
- https://76c9fb28-c10e-4950-85be-37de24a2ede8.filesusr.com/ugd/fa32a6_9198211d667145fd8b17592b8c37745d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nuvukivaxiren/reasons_to_stay_alive_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/373b3ad4-9ef8-4ab9-bc25-4b2a127b3d72/78112703614.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9b885949-868f-41cf-ad51-d42f8b1836e8/xifarovaxonu.pdfIn PDF document text
- https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_8701a69f2a7e4a97a391eb3b406347b0.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_off000101c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C6 | 5652 bytes |
SHA-256: 107871ad183d60095465bcbf6b8eb451d27fb0d3bb115983df5b291e607627d0 |
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font_01_sfnt_off000114f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114F3 | 11632 bytes |
SHA-256: 33a16b6be2f790454f8284c62368c1783a49d942ec1b77bcaac84afc0ec395da |
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