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-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://leonvi.ru/wb?keyword=how%20hard%20is%20the%20a+%20exam PDF link annotation
- https://pigofularujatuf.weebly.com/uploads/1/3/4/3/134360020/1279446.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443824/normal_606459c895e32.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421040/normal_606e1cdb7f768.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423171/normal_600c6d9c91e50.pdfIn PDF document text
- https://duduzigofusu.weebly.com/uploads/1/3/2/8/132815892/37f3626bf3a.pdfIn PDF document text
- https://gumomukus.weebly.com/uploads/1/3/4/4/134435284/8885547.pdfIn PDF document text
- https://nanuvofekoredam.weebly.com/uploads/1/3/5/3/135385966/nuvukajobuke_sikopironoke.pdfIn PDF document text
- https://bofufawikifof.weebly.com/uploads/1/3/4/2/134235483/4f401a6d3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4495059/normal_5ffa36812ea60.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4449984/normal_5ff758bcdd24e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369640/normal_5fedd601439e6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424024/normal_5fe2e709952eb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475194/normal_603604efae04c.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
- http://lekuzax.pbworks.com/f/reading_inca_history.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9b59a0aa-ba0c-4495-b29e-64a47fde1499/halo_bassinest_swivel_sleeper_bassinet_essentia.pdfIn PDF document text
- http://jebusolole.pbworks.com/f/wumozib.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9a48d601-d66c-4d32-ac35-fd6ae8c1bf95/cunto_es_un_metro_cuadrado_en_milmetros_cuadrados.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bf8f131d-4942-4a1b-a27a-3f3c4d904d20/the_hellbound_heart_book.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/47ef54d8-fd5c-4eee-87d6-c07e8108cb5b/zuwisozawibifojofomatepow.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d7a9c3bf-564c-4e58-a0ac-607e406f9c25/introduction_to_genetic_analysis_11th_edition_free_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cd537219-9f30-4fe5-ba89-6f56752f0a4f/25820389270.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA2B | 4836 bytes |
SHA-256: 4670e99adc281510ed402f46fb4f8ffff7dbc62946bdd07e04b0b7569f1d9574 |
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font_01_sfnt_off00010aa9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AA9 | 10760 bytes |
SHA-256: ea157acf2187fec11589851914995ebc869560965c793cf793f663c26310a61f |
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font_02_sfnt_off00012ec1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EC1 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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