MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document detected as malicious by ClamAV and an ML classifier. It contains numerous external URIs and is identified as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The document body, though heavily corrupted, contains keywords related to 'advanced excel syllabus 2020 pdf' and 'wkhtmltopdf', indicating a potential lure to disguise malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://botokaw.ru/award?keyword=advanced+excel+syllabus+2020+pdf PDF link annotation
- https://cdn.sqhk.co/tajugajobib/UhcgDgf/48439847891.pdfIn PDF document text
- http://meetdouche.xyz/astor_piazzolla_libertango2ujci.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367277/normal_5fd0e5ebe6256.pdfIn PDF document text
- http://pek-24.cc/best_brain_teaser_puzzles_adultsghtb1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379968/normal_604958d95fe88.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369768/normal_5fc9b72bad8fd.pdfIn PDF document text
- http://price-list.moscow/enterprise_car_club_costszorm4.pdfIn PDF document text
- http://mimasajikataza.iblogger.org/modos_de_produccin_primitivo_esclavista_feudalista_capitalista_socialista_comunista.pdfIn PDF document text
- https://cdn.sqhk.co/zuronenom/V2RvMji/drive_in_movie_theater_halloween.pdfIn PDF document text
- http://yandex-delivery.cc/52755784527bik30.pdfIn PDF document text
- http://mafuditovu.iblogger.org/american_eagle_job_application_form.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485714/normal_5feb05dbad65a.pdfIn PDF document text
- https://cdn.sqhk.co/petebeki/8LiiBuG/91136766934.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409840/normal_604d97253427a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502870/normal_603444d508af6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xekugunefutum.epizy.com/77669495949.pdfIn PDF document text
- https://19a39513-20cc-49d1-a75c-e30ce0314142.filesusr.com/ugd/f99735_7fa5c351ed0d4d0b9ed138b87b010c24.pdf?index=trueIn PDF document text
- https://37976aa0-f55f-47d3-847a-8d185b13ebf6.filesusr.com/ugd/1d6212_9071c7d0184e4a6bbf8a12eaf3e89737.pdf?index=trueIn PDF document text
- http://luwemazezabubat.rf.gd/engineering_economy_by_hipolito_sta_maria_answers.pdfIn PDF document text
- http://wixujovevimaba.epizy.com/business_plan_for_beekeeping.pdfIn PDF document text
- https://4ad55601-b8ab-4ae0-bc0e-e90069072326.filesusr.com/ugd/3aca14_7adcc5e9e2d3449bab39f9a6e2c28d1f.pdf?index=trueIn PDF document text
- https://caa91486-5fcc-43b7-8b2b-5b817ae85bbe.filesusr.com/ugd/26bbcf_f446259781e246ebbeeeac24315e8221.pdf?index=trueIn PDF document text
- https://69b3109a-7cce-4514-9193-d2106d9976ab.filesusr.com/ugd/3c2969_bd5102bd7ebb40a1a829b8fd77454cf9.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
- 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_off0000e44a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44A | 5684 bytes |
SHA-256: c1afd2e8914194ee6b53ba7329bc5c18608d8ba85d59be4f61ef02363838b1a9 |
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font_01_sfnt_off0000f7c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C9 | 11284 bytes |
SHA-256: 1ac42ed1bbd050972317c3f86cefde01245ca38e7af496a9e093eddf8abbefe3 |
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font_02_sfnt_off00011e64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E64 | 16036 bytes |
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940 |
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