MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It functions as a link farm, containing numerous external URIs, with a primary malicious URL pointing to 'pelibifir.ru'. The document's structure suggests it is designed to lure users to potentially malicious or phishing websites.
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://pelibifir.ru/strik?utm_term=estudio+biblico+la+oracion+eficaz+del+justo+puede+mucho PDF link annotation
- https://palujaburufo.weebly.com/uploads/1/3/2/7/132740236/suwopasokogexuf_ruteduf.pdfIn PDF document text
- https://puxefulido.weebly.com/uploads/1/3/1/3/131383426/saguzumu_fejezinof_malerozesaru.pdfIn PDF document text
- https://titamifafipife.weebly.com/uploads/1/3/4/3/134315234/wuwezokuxizewi_zagiwepepalufi.pdfIn PDF document text
- https://muxapikaw.weebly.com/uploads/1/3/5/3/135346573/1497551.pdfIn PDF document text
- https://wapolamezabez.weebly.com/uploads/1/3/4/0/134041225/litipewimebiva-lupomi-tipibipube-jiroj.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/caf70d74-bdfe-42b4-b77d-a5c428ed281d/792291296.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c7671a5d-9e24-46aa-b424-0deb72638f53/conversation_english_class_notes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ffcfd835-1c63-45d5-a8b5-6a33899b802a/zefuxizo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a5271fbd-c95e-4e9c-ba0d-8431d8e6f08f/wh_questions_reading_comprehension_worksheets_kindergarten.pdfIn PDF document text
- http://jukiwifid.rf.gd/acronis_true_image_home_2017.pdfIn PDF document text
- https://s3.amazonaws.com/nonabafat/response_essay_sample.pdfIn PDF document text
- https://92fed17e-af34-466b-b3fe-38cd9ef27699.filesusr.com/ugd/192d58_0b715f848a15491fb4962dac52c43355.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6481342c-2d0c-4300-82bb-f0e5be8ae3cb/66457184439.pdfIn PDF document text
- http://figofubinodafe.rf.gd/33786046242.pdfIn PDF document text
- https://6eed613e-cbae-405e-b458-9655ef9033f8.filesusr.com/ugd/e4f6f0_ece8caa29ef94bdab85554664178b5b1.pdf?index=trueIn PDF document text
- http://fedubumisuvek.epizy.com/advanced_mathematics_statistics.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0b20759f-e7a0-4768-b617-4fb5840760c2/45540797490.pdfIn PDF document text
- https://cb0920a4-0dfc-4587-8161-bd3bf883b043.filesusr.com/ugd/df391a_074b2176a8be4677a9d50dac0989fbda.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d0710872-722b-4a15-8e20-821da7bf68eb/wawuwijiwafok.pdfIn PDF document text
- https://s3.amazonaws.com/lixuduwonifa/what_is_meant_by_half_life_of_an_isotope.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/254d8274-3971-4a9d-93a1-a6fb329baa2b/the_highwaymen_song_lyrics.pdfIn PDF document text
- http://fukewabukitiv.epizy.com/jezizonopufififovix.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011df0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DF0 | 5616 bytes |
SHA-256: 20b1998ae40772e319c30fbba2bc5f820a4f4e1e403794bb268c0da6d525d17f |
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font_01_sfnt_off000130ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130EF | 12104 bytes |
SHA-256: 68b65bf32dae9e755408e21776055d6b015c8046ee06b5a159c398181d5785c7 |
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