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 0.9997
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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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://soxebez.ru/123?utm_term=apa+referencing+style+guide+uq PDF link annotation
- https://cdn-cms.f-static.net/uploads/4378393/normal_603efebb0d39e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455380/normal_60078c519c61c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468255/normal_60462f33b6c91.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367275/normal_602dac0e0e6d2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375518/normal_60362426bb95e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379477/normal_5fdd88d52ee2e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445733/normal_6019216180712.pdfIn PDF document text
- http://zuvalasit.mypressonline.com/entrepreneurship_in_philippine_setting_for_senior_high_school.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486051/normal_60188c0bd903f.pdfIn PDF document text
- http://wemuwetafivaxe.sportsontheweb.net/multinomial_logistic_regression_spss_youtube.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422134/normal_602bea3aad6ee.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4475995/normal_5ffba932814f3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wenares.myartsonline.com/22266249149.pdfIn PDF document text
- https://c7bff75e-0a19-4817-9d47-fca4cf08161b.filesusr.com/ugd/3b6424_b52e28577ab54378b6e5a6684f326ad1.pdf?index=trueIn PDF document text
- https://1b6fbac1-9b66-4609-9151-81f5d4c316f7.filesusr.com/ugd/5e81b9_511eb93e604d4f27b111ebfec6fd46e4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3c9c0373-a356-442c-93ff-d40436e9fd3a/area_and_volume_formulas_in_tamil.pdfIn PDF document text
- http://dogiwexor.myartsonline.com/how_does_a_month_to_month_rental_agreement_work.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d68866ca-02af-4d50-9c51-71ee5be922a1/20179913809.pdfIn PDF document text
- https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_be744b1418924caa96506ca3ea5ba541.pdf?index=trueIn PDF document text
- https://4a0f17ac-6ce6-4c05-9546-25c48d39d9f7.filesusr.com/ugd/cd79e3_9b17e35de243435b8e150716df862f88.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_off0000e306.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE306 | 5540 bytes |
SHA-256: 873a23657009e296df1701c586b5dcb3b1a4622c6d34fa550dd4cc7a1c878b92 |
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font_01_sfnt_off0000f5f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F0 | 11052 bytes |
SHA-256: d8973fa0f47da277dd7154e700906435abf1d80326c1b63cbec0d7678771d2df |
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