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 0.9998
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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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://druttle.ru/strik?utm_term=english+grammar+book+app PDF link annotation
- http://copyright-help-report.com/arduino_ide_linux_port_permission_denied7p9pa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422144/normal_60112c5f5919e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486975/normal_6041d16a77ebc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450240/normal_5fecc444954d3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4477379/normal_5ff8d4661eea9.pdfIn PDF document text
- http://trells.space/susuvujos0sz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://f59c0a4d-c104-43ac-8966-a5978cdf1b8c.filesusr.com/ugd/0c1ebd_6eaefc9d97424657889d9f638f8decbe.pdf?index=trueIn PDF document text
- https://60659a61-a27b-47ea-8eac-a81775c62269.filesusr.com/ugd/7a7fb1_78b49f9b13bf4bb6b09dc77a3f46088b.pdf?index=trueIn PDF document text
- https://69669160-cc20-42a3-bfef-e1e1fd1f8163.filesusr.com/ugd/8094a4_2bf3fc44e68f42ce9301a2b795f83d7d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/novipaliwid/chikungunya_test_report_time.pdfIn PDF document text
- https://2efabd41-1f95-43d0-8245-5f8eb9267247.filesusr.com/ugd/2f4ddf_6e24a1096ade4101b3c08e872943e4b6.pdf?index=trueIn PDF document text
- https://9f9bd9fa-00fe-4673-b34e-9a629881f524.filesusr.com/ugd/09273f_db5703fb39f64886ab680df46eed54da.pdf?index=trueIn PDF document text
- https://c064424b-11a8-4e39-a524-24a74bcd733d.filesusr.com/ugd/54e393_75bf3b45f3dc4645a2350da06ed73a8e.pdf?index=trueIn PDF document text
- https://d05b2b94-0af3-401c-a6ef-75d00d0b58ae.filesusr.com/ugd/3bca44_4ee5abd298d844a1b9a972ea9408ca3f.pdf?index=trueIn PDF document text
- https://73856814-13bb-4d44-aeaf-752cce6ba6bd.filesusr.com/ugd/a0d21a_40a876baff7e4d89b7ddb29fbe324af9.pdf?index=trueIn PDF document text
- https://a1359116-1358-4cde-afc5-3600b4bb50db.filesusr.com/ugd/3b0c81_21db292ae3b340548e8e134824bae905.pdf?index=trueIn PDF document text
- https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_ca583d1515e94361adecee2ea9f81dd3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/votawawo/vazulaselokuju.pdfIn PDF document text
- https://6c8ebe11-725c-420b-823a-68bc39d02ad2.filesusr.com/ugd/3e87bf_13d69f269d344f348216692300c4ed82.pdf?index=trueIn PDF document text
- https://e02212b7-c8ec-4bf5-ba3e-d68a1de675e0.filesusr.com/ugd/7f1d73_d8757da93da84bf4ae3e73fc436e631e.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_off00010b33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B33 | 5396 bytes |
SHA-256: 5e43d63dccd75a6603487b74e114638d7586609fcdf53c01c32a6661d589ed0d |
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font_01_sfnt_off00011d62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D62 | 11228 bytes |
SHA-256: b6b6e48b763f62544aef782ada82b040aa19e69641ad5162a03333a83050cede |
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