MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, with one prominent URL pointing to 'crysiq.ru' and another to 'ravowibooks.com', suggesting a link farm designed to redirect users to potentially harmful content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the conclusion that this document is part of a malicious campaign to drive traffic to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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 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://crysiq.ru/pbw?utm_term=uninstall+android+studio+ubuntu+terminal PDF link annotation
- https://cdn-cms.f-static.net/uploads/4403541/normal_605b80a8e288a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380210/normal_60414649b90b6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449777/normal_6017ce3d437de.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405650/normal_5fe75201a7d34.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://ravowibosu.pbworks.com/f/btd5_deluxe_serial_key_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/321951e3-6cbe-46a4-be03-6887ea078838/terip.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cbef1165-7148-4e4c-83a3-6af659ef26ce/what_is_the_definition_of_corrugated_in_science.pdfIn PDF document text
- http://foxobekizax.pbworks.com/w/file/fetch/144467451/91070338114.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82f0e022-00d6-4218-876c-85707213cdc3/zomeparerolepavomunaduwe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/76e5e821-5ef7-4021-9ca6-d1fe423a5966/93744156487.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d6008fa6-5acd-4f33-b6eb-ec6e3e2f5f54/90332982809.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd01932f-17bb-46dc-bda4-e207e8ff436a/92742637872.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/24c3ce5d-e34c-4d44-ab2b-e5dd731dbc04/roziredabikekun.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af0cdd7a-ea69-41de-9419-55d3f61c4388/dejupejedozojebevabonuz.pdfIn PDF document text
- http://kikipudojuzo.pbworks.com/w/file/fetch/144525216/mac_os_x_10.6_8_software_update_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2137f96e-1fb2-42cf-9d7c-7ff20dd7342e/refirufemuteni.pdfIn PDF document text
- http://komogabovuwa.pbworks.com/w/file/fetch/144741750/what_is_microsoft_exchange_server_for_hotmail.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6e4176d5-429e-4846-acc7-b49bed08ecd2/washington_post_comics_pickles.pdfIn PDF document text
- http://zepadatoju.pbworks.com/w/file/fetch/144416064/how_to_spawn_a_helicopter_in_gta_5_online.pdfIn PDF document text
- http://gutupum.pbworks.com/f/41516768370.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/62372c19-71d9-4d43-a7dd-bf17ed4db18b/hp_ink_5510_photosmart.pdfIn PDF document text
- http://vosebim.pbworks.com/w/file/fetch/144588828/english_test_pre-intermediate_100_questions_answers.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_off0000ee9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE9D | 5100 bytes |
SHA-256: 708b4b9ad3789587cbafe07d872a6a289a5611be8b7e29edb2967e0b12026378 |
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font_01_sfnt_off0000ffdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFDC | 12736 bytes |
SHA-256: d8569b3ccd17bbb7e8cfc61e576fab86ee1b573e967b863dd794a9f9fa4feab0 |
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