MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1059.007 JavaScript
This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating it is likely a phishing or trojan delivery mechanism. The document body and heuristics suggest a lure to install a browser extension or update, a common tactic for credential theft or malware installation. The embedded URL points to known malicious redirector infrastructure, further supporting the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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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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://yafferge.ru/strik?utm_term=pmbok%25C2%25AE+guide+%25E2%2580%2593+sixth+edition+chapter In PDF document text
- https://cdn-cms.f-static.net/uploads/4375887/normal_603336f9d1392.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387929/normal_5ff1b1a89db85.pdfIn PDF document text
- http://telunodet.22web.org/34281389853.pdfIn PDF document text
- https://cdn.sqhk.co/xaselavub/igj3Ljh/mens_haircuts_medium_length_curly.pdfIn PDF document text
- https://cdn.sqhk.co/jitolado/heScVjg/best_free_brain_training_app_ios.pdfIn PDF document text
- http://guzolemidova.iblogger.org/54808141399.pdfIn macro / runtime command snippet
- https://cdn-cms.f-static.net/uploads/4458849/normal_5fdc7ae5efdbb.pdfIn macro / runtime command snippet
- https://cdn.sqhk.co/nukebomevobe/1k1ighi/deduropubag.pdfIn PDF document text
- http://tufilevazoropiz.iblogger.org/zinigetufujowaxuvon.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369343/normal_603158cda62a2.pdfIn PDF document text
- https://cdn.sqhk.co/jitolado/heScVjg/best_free_braIn macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://goxulotevixoda.rf.gd/large_iced_coffee_dunkin_donuts_nutrition.pdfIn PDF document text
- https://s3.amazonaws.com/wibadinavosunom/math_questions_and_answers_for_grade_8.pdfIn PDF document text
- https://s3.amazonaws.com/tobito/adobe_flash_player_for_android_google_chrome.pdfIn PDF document text
- https://s3.amazonaws.com/sosupejuxofedo/duplicate_marksheet_of_ignou.pdfIn PDF document text
- https://s3.amazonaws.com/limepusotanal/defigapafamopuzanibiv.pdfIn PDF document text
- https://s3.amazonaws.com/lijopavexanuse/personification_poetry.pdfIn PDF document text
- https://s3.amazonaws.com/bulikowexunepov/29440072573.pdfIn PDF document text
- https://s3.amazonaws.com/rozebofukixus/24974620669.pdfIn PDF document text
- https://s3.amazonaws.com/bejexe/zineb.pdfIn PDF document text
- https://s3.amazonaws.com/jinabom/you_are_bigger_by_celestine_donkor.pdfIn PDF document text
- https://s3.amazonaws.com/zodawanuror/95099750432.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f009.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF009 | 6004 bytes |
SHA-256: 9220ae768bb8717d93203599736c8758d2f14e956d60244bc9167fce7369400f |
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font_01_sfnt_off00010468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10468 | 10888 bytes |
SHA-256: b50f6acf0c3cb0a4a92bf7c004e55cfa48f1e16f8a9f85465e8855594987837e |
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font_02_sfnt_off000129c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129C3 | 16216 bytes |
SHA-256: 13427436f358bea1cba8b4c296a815c99a2fc787acdd134e81d75d33178e34ff |
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