MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a mass external link farm, with many links pointing to disposable hosting and generated SEO content. The primary URL, 'https://vilenefex.ru/award?keyword=year+5+spelling+words+pdf', suggests a lure to disguise the malicious intent. The ML classifier and ClamAV detection strongly indicate maliciousness, likely for phishing or traffic redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://vilenefex.ru/award?keyword=year+5+spelling+words+pdf PDF link annotation
- https://vewewiganivobob.weebly.com/uploads/1/3/4/8/134852084/pudukubixepox-fiwebepad-bubozilapevi-luwagabe.pdfIn PDF document text
- https://fobanuvoba.weebly.com/uploads/1/3/1/6/131637247/1851421.pdfIn PDF document text
- http://fasidubeni.iblogger.org/amsterdam_tourist_guide.pdfIn PDF document text
- https://rimofunoduw.weebly.com/uploads/1/3/4/5/134525219/697a4fc.pdfIn PDF document text
- https://fesinukovib.weebly.com/uploads/1/3/4/7/134715349/vikixibonodupet.pdfIn PDF document text
- https://suzoniku.weebly.com/uploads/1/3/4/4/134456843/lulesuzavumadigofere.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://gajedimigifupet.epizy.com/2018_chevy_cruze_diesel_manual_transmission.pdfIn PDF document text
- https://ab737b70-891a-4a1f-8db9-ee548211cb31.filesusr.com/ugd/ce14f3_b0f7acc8ab4245969d54126ecd24622d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sulasatevirexo/bole_chudiyan_song_ringtone.pdfIn PDF document text
- https://bea00909-aa88-4d38-ac88-e56db460b486.filesusr.com/ugd/923104_4fd012503a964595bccccfadab617688.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kitakilesa/49586871641.pdfIn PDF document text
- http://fipuxogililego.epizy.com/notice_letter_template_house.pdfIn PDF document text
- https://8488b7ac-84bc-45ae-88ed-26841205fc59.filesusr.com/ugd/7cda3c_749b31f86b4c466a9df3c9dee0d2ca4c.pdf?index=trueIn PDF document text
- https://75a697d3-84f0-44cf-bab9-f05e37020c50.filesusr.com/ugd/7c3584_d46da1c3e8974c39a13785f45779a5ec.pdf?index=trueIn PDF document text
- http://vikaxala.epizy.com/japanese_apron_sewing_pattern.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4d5b7940-f3de-45f0-8705-4c43761232c3/73535413647.pdfIn PDF document text
- https://d7301f0f-9730-4f6e-9d95-601e203cb770.filesusr.com/ugd/253413_88cda6f3a84f4f9f9a7724f47e589f80.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6865277c-c728-4625-b591-b32d9ea125ce/pitimigejebo.pdfIn PDF document text
- https://s3.amazonaws.com/jupevuxirapi/basketball_point_guard_gym_workout.pdfIn PDF document text
- https://s3.amazonaws.com/moduxanakuri/ffxiv_leveling_guide_30-_40.pdfIn PDF document text
- https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_9618a7a953e34d97bd0e6a3d95b27589.pdf?index=trueIn 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_off0000d15e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD15E | 5388 bytes |
SHA-256: b15826865ffede30d37e93e960fa6d9371e7e58d2e6525552d0a4fe7797537e8 |
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font_01_sfnt_off0000e3d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3D6 | 10584 bytes |
SHA-256: 250bbd3adb4a54059842443ab6d7893ecabc801e6e9d99eebfaad4d2d26168b5 |
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