MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The document contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to distribute malware or facilitate phishing. One of the primary URLs extracted is https://jacksth.ru/strik?utm_term=microsoft+o365+user+guides, which appears to be a lure for users seeking Microsoft O365 guides. No scripts were extracted, but the PDF structure and link farm indicate a malicious intent to redirect users to potentially harmful content.
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://jacksth.ru/strik?utm_term=microsoft+o365+user+guides PDF link annotation
- https://bivedaniliged.weebly.com/uploads/1/3/4/7/134732971/16a89daa.pdfIn PDF document text
- http://rezolawanelu.sportsontheweb.net/agenda_writing_format.pdfIn PDF document text
- https://cdn.sqhk.co/kikolibub/uiaDILt/newexuribupotizixutanaduw.pdfIn PDF document text
- https://jalaxogazumin.weebly.com/uploads/1/3/4/3/134373329/92b983.pdfIn PDF document text
- https://cdn.sqhk.co/pefisemise/qhbieii/nujofok.pdfIn PDF document text
- http://rinujajija.getenjoyment.net/metabolic_confusion_meal_plan.pdfIn PDF document text
- https://cdn.sqhk.co/gevanadu/3bihJuW/simple_diy_wood_projects_for_beginners.pdfIn PDF document text
- https://janepaxe.weebly.com/uploads/1/3/4/0/134097288/rarowinolilona.pdfIn PDF document text
- https://zalirojojates.weebly.com/uploads/1/3/4/6/134606979/wixaveduwujuvir.pdfIn PDF document text
- https://cdn.sqhk.co/burajugi/Bhjjcga/tugawi.pdfIn PDF document text
- https://cdn.sqhk.co/kewesowovim/hgj0hgM/823433728.pdfIn PDF document text
- https://cdn.sqhk.co/sigidezok/9vjbShI/merge_dragons_wiki_levels.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/9f027d14-0a07-40f2-bd56-2625beba9739/ice_breaker_questions_for_online_meetings.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bc883db2-5332-4a59-817f-50eef9af3730/69405288009.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a8c6f995-ca9d-4277-a656-dcb703be7bec/1_police_plaza_nyc_directions.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be11f31e-2e5f-47c7-a22f-d31be78a605f/analysis_and_design_of_energy_systems_3rd_edition_solutions_manual.pdfIn PDF document text
- http://zijiwaras.onlinewebshop.net/maniac_magee_ebook.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7aef0c42-577c-4939-b32e-b4794ee52d47/wejulidemebubaxawa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b371ed73-d9e0-4119-a171-b3374bbf113d/what_is_the_greek_word_for_together.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6b611ebb-ab33-4928-9cb6-15d092e4f440/romeo_juliet_movie_climax_songs_download_starmusiq.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e9669f79-da6d-4238-a334-5d2ff074da5e/96247006938.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6facfc48-05c9-4ff0-8e17-af48edbaf3b8/hp_deskjet_2132_ink_walmart.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_off0000e3a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A1 | 5392 bytes |
SHA-256: 773e25ce2c6361ab23fa1f9dceb38114fa3ffbd5d93b3ff417c4c2b2f485c75f |
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font_01_sfnt_off0000f617.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF617 | 10360 bytes |
SHA-256: 6373aa6d9674cb767de52acecb2c1c4852e54c838e9d34f6482e3625fa255c3b |
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