MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a fake browser/software-install lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://xajibur.ru/award?keyword=best+light+pdf+reader+windows+7 PDF link annotation
- http://baltika-trans.ru/69927613636ed6ra.pdfIn PDF document text
- http://jigikujed.scienceontheweb.net/cambridge_university_application_form.pdfIn PDF document text
- https://nimudizovif.weebly.com/uploads/1/3/4/4/134478886/surufowulegerev_velitixo_vazagomibadujek_dikuwaxuzoguvi.pdfIn PDF document text
- http://goodxday.xyz/bookmark_manager_app_for_androidhi39l.pdfIn PDF document text
- https://zofifonanofanap.weebly.com/uploads/1/3/4/8/134876640/1edb6637f82.pdfIn PDF document text
- https://rorupuloloxotog.weebly.com/uploads/1/3/1/4/131409755/6343413.pdfIn PDF document text
- https://wolunogejafijut.weebly.com/uploads/1/3/4/6/134649672/siwozav.pdfIn PDF document text
- https://mefosenide.weebly.com/uploads/1/3/4/7/134715399/jivukaxafu.pdfIn PDF document text
- http://zvezdasevera.online/video_habibie_ainun4pp3q.pdfIn PDF document text
- https://jijoforupet.weebly.com/uploads/1/3/4/8/134864875/mipuzu-sudezesotuji-zidufilofemavup-dulufodide.pdfIn PDF document text
- https://pidodogifir.weebly.com/uploads/1/3/1/3/131383649/bd6fde9a5bf3a2c.pdfIn PDF document text
- https://pafotelune.weebly.com/uploads/1/3/4/5/134588297/dikifasatixu_domenanegareg.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/71a99eab-3dd2-455d-88ed-d1f0f521aee3/data_communications_technology_definition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/875a4652-48f8-4830-9ac5-7656ed78080a/ninofirotolonetit.pdfIn PDF document text
- https://s3.amazonaws.com/bibejovixapis/algorithme_informatique_1ere_anne.pdfIn PDF document text
- https://s3.amazonaws.com/xonaxevetaf/public_relations_and_communications_assistant_-_entry_level_salary.pdfIn PDF document text
- http://sorisavitekinuj.onlinewebshop.net/selojunabuwamiwedefezuwef.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/91a427ef-d96b-4937-b3d7-0068797474fe/77663657752.pdfIn PDF document text
- https://s3.amazonaws.com/fojaxexino/medial_cuneiform_articulation.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_off0000fefc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEFC | 5524 bytes |
SHA-256: 5fcac795ea18d1729bcd52b655b2647a5feea4c207aa528d643aad05e9af7e3f |
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font_01_sfnt_off000111db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111DB | 10772 bytes |
SHA-256: 397a22259056f6b3f5dff92f2e9bf32f5e68d4fec0c1cb16ff46659cf779e416 |
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