MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is a PDF that contains a large number of external links, a common tactic for SEO manipulation or phishing. One of the extracted URLs, https://vilenefex.ru/award?keyword=back+titration+questions+pdf, is flagged as malicious. The ClamAV detection and ML classifier also indicate maliciousness, suggesting the document is designed to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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 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=back+titration+questions+pdf PDF link annotation
- https://cdn.sqhk.co/nomitusibop/SUigiaq/followers_timeline_on_facebook_not_loading.pdfIn PDF document text
- https://dolopexoje.weebly.com/uploads/1/3/1/8/131872138/sokef.pdfIn PDF document text
- http://gedatidigog.sportsontheweb.net/91018281769.pdfIn PDF document text
- https://subegudikowezi.weebly.com/uploads/1/3/4/4/134476363/bc56a3ca85cf8.pdfIn PDF document text
- https://cdn.sqhk.co/nobixapo/cqawjjN/mumenotebinibukelerafunat.pdfIn PDF document text
- https://manoxumumaxu.weebly.com/uploads/1/3/4/4/134472756/befinovurabew_vodalon.pdfIn PDF document text
- http://jenewazajasazu.getenjoyment.net/26100554639.pdfIn PDF document text
- https://totidulabi.weebly.com/uploads/1/3/1/6/131606487/girim.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/bbbb6d36-42fc-47bc-a3fc-2d12a5fc5081/how_many_calories_in_a_wendys_baked_potato_with_chili.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/53a4fdc0-c71b-4824-bea8-d775d411b3dc/vakovixulasulemelodim.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/144d38d8-8d3a-40de-a3e2-98795a439710/7652492222.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11c610f0-e5b4-4b8d-ba84-4fc17b259628/diablo_2_armor_runewords_gamepedia.pdfIn PDF document text
- https://s3.amazonaws.com/genedonapubefe/tokyo_drift_soundtrack.pdfIn PDF document text
- https://s3.amazonaws.com/nelizenejakarug/intercessory_prayer_team_guidelines.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f14a7f7e-dde8-4c1b-8b78-d97de6ce82fb/what_does_pick_motor_stalled_mean_on_hp_printer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cf4ed29f-d1fb-4c4d-a551-fcc0c6fdc77e/bugero.pdfIn PDF document text
- https://s3.amazonaws.com/fukepez/lower_gi_bleeding_guidelines.pdfIn PDF document text
- https://s3.amazonaws.com/vezumobigodub/zixefonimaxodizigigijaba.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/09c4736d-c387-4008-8125-3c981dd8731e/dupose.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_off00011a01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A01 | 5356 bytes |
SHA-256: b0c394d46c84697373ca4566487b9200a4e54a42b94834620d8f3431c91de706 |
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font_01_sfnt_off00012c49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C49 | 10888 bytes |
SHA-256: 1da01a38a21358b1b5acacae9036ea20ef6eede2d12bcaebffa7a1a17d70fc58 |
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