MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external links, many pointing to disposable domains and hosted on services like Strikingly and Weebly, indicating a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The embedded URLs and the PDF structure are indicative of a tactic to manipulate search engine results or to serve as a landing page for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://druttle.ru/strik?utm_term=nutrition+in+pregnancy+rcog+guidelines PDF link annotation
- https://xunowarusaki.weebly.com/uploads/1/3/4/3/134371630/falovapa.pdfIn PDF document text
- http://pajuwepubawip.sportsontheweb.net/88606650922.pdfIn PDF document text
- http://gexomafe.mypressonline.com/what_is_narrative_essay_slideshare.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416504/normal_601f38c5a09ce.pdfIn PDF document text
- https://saniluje.weebly.com/uploads/1/3/4/3/134323688/5662046.pdfIn PDF document text
- http://regsen.website/8758874122fvayh.pdfIn PDF document text
- http://cmbespaceclient.xyz/engineering_mechanics_dynamics_6th_edition_meriam_kraiger2k03.pdfIn PDF document text
- https://midodelawipage.weebly.com/uploads/1/3/4/5/134585137/lewasuf.pdfIn PDF document text
- https://lakupofudeb.weebly.com/uploads/1/3/0/7/130775354/mefiwun-sowobanuze.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455639/normal_5fcd32b7db7ff.pdfIn PDF document text
- http://amandeepsadyora.com/vezijonupuxefqg0ng.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/3436676f-ae64-4e3f-b496-a5138fd26cbc/what_are_some_thermal_conductors.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e3482ce-7453-4a49-a54f-65e05022ff98/93997263600.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a8e203b4-24c1-4abc-8259-bce6bc349d08/94392608918.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ececf0f5-a6a2-4105-96c9-df7f90cf8e48/73862242430.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c7d5d919-fb4c-4a24-8720-4a0f7a14f053/97677949532.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e6aa843-9275-4f37-93d5-3b23d210a2bf/can_you_change_the_battery_in_a_vivofit_jr.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bdef5dde-0814-4bdf-aa9a-9a94d2a5ade0/rebibamodosaxopusoxok.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_off0001c963.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C963 | 5312 bytes |
SHA-256: 262bfea875b3c2d353ba5cadd7b3a404c4f441c59a6f52ca5b98b1e8deb941ae |
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font_01_sfnt_off0001db90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1DB90 | 10852 bytes |
SHA-256: 5378c3038bcf246b25ad62fb02c482f41d82c9b50b79760f527eb21b7b9f196d |
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