MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, with one prominent URL pointing to 'krisoc.ru', suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using multiple disposable hosts for redirection, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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 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://krisoc.ru/pbw?utm_term=simoniz+1900+psi+electric+pressure+washer+manual PDF link annotation
- https://static.s123-cdn-static-d.com/uploads/4391921/normal_60b561c60db48.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4444852/normal_60b3d6b6a4e5d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500665/normal_602d3cd1e0d4f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370087/normal_6001e2cc19cff.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387701/normal_5fce8bb58f618.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459341/normal_6033fbea0b5aa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405660/normal_60b80253bfa3b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403262/normal_604ee7b7c7bd4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4505159/normal_5fc5ea625547d.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/5730e15b-5702-424c-8c7d-410ffef39fab/ktm_380_serial_number.pdfIn PDF document text
- http://pigedigasexu.pbworks.com/w/file/fetch/144505434/how_to_enter_service_mode_on_samsung_smart_tv.pdfIn PDF document text
- http://nigezid.pbworks.com/f/86959922397.pdfIn PDF document text
- http://pilujibos.pbworks.com/w/file/fetch/144500133/what_is_form_in_design_elements.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8e06215c-eb77-42df-80e1-15fefdd8ab0c/text_oh_danny_boy_deutsch.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/66c07300-c2fa-4a7f-9ce8-4ac1beef6a1e/mfj_949e_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3704b122-0566-44a4-ba00-d8b82f3693aa/is_the_ruger_sr22_pistol_a_good_gun.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c2c95b12-36cc-4b42-a485-05496e589641/kusokafevixuxi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/014ab76e-48b2-4ae7-9fbb-69ed77f834f8/rinnai_heater_propane.pdfIn PDF document text
- http://mikabipi.pbworks.com/f/sitilevopivagawe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa434f09-8f8d-48ed-bdfa-fbcd6ac3728d/kifewawibojesugakozege.pdfIn PDF document text
- http://vaporezikumu.pbworks.com/f/mad_max_fury_road_full_movie_in_telugu_free_download_tamilrockers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/24467993-0d4c-45b4-b59c-6fe3cff30f27/lodezixupuxaboxaratow.pdfIn PDF document text
- http://bofamawetodo.pbworks.com/w/file/fetch/144634257/95097264540.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a2b9d2ff-4cbc-48aa-a533-bc1732ffe49d/how_to_build_a_gaming_pc_full_beginners_guide.pdfIn PDF document text
- http://detomipipu.pbworks.com/f/bilingual_first_language_acquisition_annick_de_houwer.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_off0000e41c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE41C | 5768 bytes |
SHA-256: 7ebd0460e21687089f3e7fe143ae125c3e8862f09e645b082fc7c2bf2ea0f443 |
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font_01_sfnt_off0000f7b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7B7 | 11052 bytes |
SHA-256: 3c1048dd294b00ca3a5fc49d4860a70be2632d826fa231f33940d92f1e7ace86 |
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