MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a link farm of disposable domains, masquerading as a Coursera certificate download. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a phishing or malware payload. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://gimoguvi.ru/award?keyword=coursera+certificate+pdf+download PDF link annotation
- https://ketabanajav.weebly.com/uploads/1/3/4/7/134707818/patoz_lokofetomunube_rusixemuvemazo_bufazedofi.pdfIn PDF document text
- http://pl50off.info/the_walt_disney_company_annual_report_2007uiwas.pdfIn PDF document text
- https://vodefuba.weebly.com/uploads/1/3/4/6/134688083/4701489.pdfIn PDF document text
- https://sitepofom.weebly.com/uploads/1/3/1/4/131438718/2c7e64fef4df.pdfIn PDF document text
- https://cdn.sqhk.co/muvotugi/YwhbgcW/ryan_s_world_bubble_shooter_game.pdfIn PDF document text
- http://babbieshop.ru/research_methods_in_education_cohen_manion_morrison3ix4g.pdfIn PDF document text
- http://ukranews.site/danny_boy_sheet_music_in_g0c8iu.pdfIn PDF document text
- https://cdn.sqhk.co/kepebeso/9whj2OR/taxijesunotazinuxab.pdfIn PDF document text
- https://cdn.sqhk.co/wepunajexiju/IeR2hdW/64019293465.pdfIn PDF document text
- http://prodson.fun/70810879979bttp5.pdfIn PDF document text
- https://cdn.sqhk.co/jojikoxazew/hhYNmGz/89211357841.pdfIn PDF document text
- https://cdn.sqhk.co/votezevon/fhPO2iP/20337438701.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://34886cf3-15ed-44db-93e8-8979dc7c4cd7.filesusr.com/ugd/ea2c45_97d3dc0813b64a1eb12e3c9e3ea5af55.pdf?index=trueIn PDF document text
- https://2ffa788b-df2f-461f-b9c5-573bec542745.filesusr.com/ugd/374ce0_be35ad221deb425cb9868876d48e5313.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b6fabd9f-2ea0-46f6-8986-6c704b814042/what_is_the_tough_on_crime_law.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ede6b078-3ba4-46ad-947b-81a016a78a29/preventing_medication_errors_tutorial_from_the_davis_drug_guide_for_nurses_online_resources.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2d520ab1-bd07-4258-903b-63370c0c46ee/descargar_diccionario_espaol_italiano_gratuito.pdfIn PDF document text
- https://2c8134a4-d865-4da1-8961-c755d7242105.filesusr.com/ugd/6dcf04_5832f792d983470cb5743fd93bc6b6a5.pdf?index=trueIn PDF document text
- https://41d9b059-0b17-466b-96e6-f31a3f3e9b19.filesusr.com/ugd/f1ead9_2c40a4fe5a714c25a1297483a6717ac3.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2b424383-6042-4c16-b6a1-217b185feefa/cfd_analysis_in_ansys_workbench_tutorial.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/685adefc-04e8-4c1a-aa2c-c855233ec2d3/jejogenuworedaporiv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/febee05a-302b-46a0-ba8d-6fb28bfb3bab/old_us_army_recruiting_posters.pdfIn PDF document text
- https://77da94c0-0f0a-445b-87af-e489a0b5ef66.filesusr.com/ugd/db1da1_a593578458474b07ad3137fff553fcc0.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e675751e-ae7d-42b4-a4b0-e1346dec104d/area_of_shaded_region_circle_worksheet_with_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/65afec41-09b2-403f-b051-ffbb3836702a/boganedifafenutukezovizog.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eaba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEABA | 5148 bytes |
SHA-256: ffd564a72069d2e938a03e81c3f67927f805e086a07b785a161f6966975478bf |
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font_01_sfnt_off0000fc63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC63 | 11316 bytes |
SHA-256: 1182f7e13effdb4d8ae39cd781824ddc1d83c223cbb5998231254e57d86c1c54 |
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font_02_sfnt_off000122dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122DC | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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