MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, appears to be a lure related to 'Stanford anesthesia residency pdf'. The presence of numerous external URIs and the link farm heuristic strongly suggest this document is part of a phishing or malware distribution campaign.
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://dugedepap.ru/123?utm_term=stanford+anesthesia+residency+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4468871/normal_5fcc5ebb6fb0a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413013/normal_5fdc255dedad5.pdfIn PDF document text
- https://vemanilulo.weebly.com/uploads/1/3/4/3/134378365/winizovubi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474446/normal_6017bae85f42f.pdfIn PDF document text
- https://fegemuvu.weebly.com/uploads/1/3/2/6/132695633/vazege.pdfIn PDF document text
- https://junobinedutuki.weebly.com/uploads/1/3/2/7/132712306/pogopubani.pdfIn PDF document text
- http://vajesafosedepur.mywebcommunity.org/how_to_activate_pvr.pdfIn PDF document text
- https://gegoviboz.weebly.com/uploads/1/3/4/8/134876631/706a989b39.pdfIn PDF document text
- https://vikakexotokipo.weebly.com/uploads/1/3/0/9/130969200/ripototeg.pdfIn PDF document text
- http://fubikopelemom.mypressonline.com/wijadalufuzesugef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448330/normal_5fd62b3aa1f4d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384152/normal_6043f6fc63a12.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426409/normal_6034235fbc727.pdfIn PDF document text
- http://jisutuxoxaza.medianewsonline.com/yamaha_digital_piano_dgx_640_price.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ce55c564-0e79-48ac-bd91-a034cff8554b.filesusr.com/ugd/bd1fc0_761e39ba7c794e2788ee3191ccda98af.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/401badc3-1168-4a3d-b0e9-9a68665a0aa9/harry_potter_book_set_amazon.ca.pdfIn PDF document text
- https://9d349da1-218b-4b59-9e37-2a90cab56d40.filesusr.com/ugd/de9003_3198f76d93e942b6abf542d66fe30d58.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/12aef070-b54b-42e5-8c28-a0d35bd9e87f/kepofuwalupewopetigoteg.pdfIn PDF document text
- https://645c32c3-7e99-4959-b93b-7980205539d7.filesusr.com/ugd/30a31c_c00cd920623a4fbea62e32ed1d7c0646.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3e35a28b-c2af-49e9-9122-8e37a833fa25/clear_google_search_history_on_my_android_phone.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d9699c9-3961-4ddf-bfce-06c07bfa9770/volkswagen_mechanic_shop_near_me.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_off0000f2a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2A9 | 5416 bytes |
SHA-256: 40b9058ca31b76538691a0ac09e50975d0e5547b7d7efa34bd60976a774614a5 |
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font_01_sfnt_off0001051b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1051B | 11208 bytes |
SHA-256: 7e13aa7670a1832046b0fae80f97133314919be820d6b6b84570a303d54292cc |
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