MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, which is characteristic of a link farm or phishing lure. The embedded URL and the heuristic firings like 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest a malicious intent to redirect users to potentially harmful content. The ML classifier and ClamAV detection further corroborate the malicious nature of the file.
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://dugedepap.ru/strik?utm_term=descargar+curso+de+ingles+vaughan+4.0+3+niveles+mega PDF link annotation
- http://xifasiv.getenjoyment.net/lofurugaribasutiwadom.pdfIn PDF document text
- http://nidewopovuwubo.mypressonline.com/stages_of_human_development_in_psychology.pdfIn PDF document text
- http://toxipoxekej.medianewsonline.com/89785626294.pdfIn PDF document text
- http://gazizelasama.getenjoyment.net/60272744019.pdfIn PDF document text
- http://tadosuzewamu.medianewsonline.com/marchantia_thallus.pdfIn PDF document text
- http://taxokijoba.sportsontheweb.net/diwuzosumalaboxigiju.pdfIn PDF document text
- http://finipupote.mywebcommunity.org/jomewapuga.pdfIn PDF document text
- http://niburufajanuto.sportsontheweb.net/legal_affidavit_sample.pdfIn PDF document text
- http://tubesebove.medianewsonline.com/gartner_magic_quadrant_workforce_management.pdfIn PDF document text
- http://nepatokada.mypressonline.com/nozatenurolaremanobawoj.pdfIn PDF document text
- http://rumurel.mywebcommunity.org/adaptive_control_astrom_wittenmark.pdfIn PDF document text
- http://pogawubujogeje.mypressonline.com/hp_officejet_5510_specs.pdfIn PDF document text
- https://cinurl.com/1giflmIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://adc67df4-9ac4-4169-8225-f8d60376216a.filesusr.com/ugd/a1c2c7_6d28f6170a904ebfb3dd2e53e14b35b2.pdf?index=trueIn PDF document text
- https://42190e62-4dca-482d-a077-ae7b222d7779.filesusr.com/ugd/b91392_e4f8432e4872451eb5c7321c55a51bec.pdf?index=trueIn PDF document text
- http://vigavanoxe.onlinewebshop.net/revelian_cognitive_ability_test.pdfIn PDF document text
- https://5c06e36d-e6a7-492f-989e-88f86e9ca1b1.filesusr.com/ugd/c9ae65_31022f581bc048e4933bd21ae97a341b.pdf?index=trueIn PDF document text
- https://d21da297-2d1c-4020-882f-059d99c29dc9.filesusr.com/ugd/3724a2_fb85d59b56af427bae5a6affb34a4904.pdf?index=trueIn PDF document text
- https://9042e326-c85f-44e6-b9b6-0c206471fdba.filesusr.com/ugd/0d2fda_a3edc114a13b4d1e831d0607c8e17f4e.pdf?index=trueIn PDF document text
- https://7722bba5-72ad-4d15-a72d-9ce9fbdcf1b5.filesusr.com/ugd/772ad5_2e1c259f02a842d48e757d62eb06a9db.pdf?index=trueIn PDF document text
- https://932aa67c-856a-4fda-9fc8-fe3f50d4acc2.filesusr.com/ugd/a25eee_fed27b6cfb624b80a00f056f14a982db.pdf?index=trueIn PDF document text
- https://3d7c42e8-cad9-4196-8f3c-0f210fd97588.filesusr.com/ugd/1b7c00_b826f40fa25f402ba2bee9d4b85226f2.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_off0001ea3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EA3F | 5840 bytes |
SHA-256: 7e18fff0df64f6f690420b090ba78cd7ed2c6b7685a089b64aa9017813e70c28 |
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font_01_sfnt_off0001fe06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FE06 | 11708 bytes |
SHA-256: 7a79dd186bbaf6a045e5f4042bdcb5d35a62a3d531f39b91372d0c1fe0d789cd |
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