MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The sample is a PDF document flagged by multiple heuristics and a machine learning classifier as malicious. It employs a social engineering lure, instructing the user to install a browser extension or update to view content. The embedded URL `https://botokaw.ru/strik?utm_term=covid+19+screening+questions+for+workplace+ontario` suggests a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded URLs indicate a malicious intent, likely involving the exploitation of the user's trust to download further payloads or steal credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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://botokaw.ru/strik?utm_term=covid+19+screening+questions+for+workplace+ontario PDF link annotation
- https://judexesadizit.weebly.com/uploads/1/3/0/7/130738912/wakubex-xojero.pdfIn PDF document text
- https://nefabilaj.weebly.com/uploads/1/3/1/4/131438225/juxakugotezumov-nagip-gusama-tokisojemebagu.pdfIn PDF document text
- https://sedarujewajoto.weebly.com/uploads/1/3/0/9/130968957/tusib.pdfIn PDF document text
- https://xokebewogaxuwu.weebly.com/uploads/1/3/4/5/134588239/baff1ababca73a1.pdfIn PDF document text
- https://karozazosepi.weebly.com/uploads/1/3/4/3/134316788/1376118.pdfIn PDF document text
- https://ganegekisawaji.weebly.com/uploads/1/3/1/4/131406809/c99b41cdcc3.pdfIn PDF document text
- https://vikaworapelesob.weebly.com/uploads/1/3/4/7/134702945/muvutojegujaw-salupobun-rofubobu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476593/normal_60534fe8790c9.pdfIn PDF document text
- https://bajumavo.weebly.com/uploads/1/3/4/4/134486103/venumakikufabal.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465398/normal_602e078de0245.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/d50c5f17-e7f7-4261-bea4-e11000f3bea2/bupifuto.pdfIn PDF document text
- https://s3.amazonaws.com/senodiw/aladdin_2019_english_movie_songs.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c3d8032d-908a-4469-8126-10acc37026ac/mr_heater_big_maxx_80000_btu_propane_consumption.pdfIn PDF document text
- https://s3.amazonaws.com/vizegemawokaxe/hp_envy_release_date.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd91a11d-8d9f-4000-b69a-5d09397ada5a/55556537908.pdfIn PDF document text
- https://s3.amazonaws.com/sefepugolupalax/apes_the_lorax_and_sustainable_development_answers.pdfIn PDF document text
- https://s3.amazonaws.com/lebejos/screencap_video_android.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fc72d1a6-0e32-4437-aec6-925b777b4058/logitech_g203_lightsync_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c5fdcc01-d4d9-4402-96a9-446760b743fb/renaxirobiwejatepalineso.pdfIn PDF document text
- https://s3.amazonaws.com/pobixedele/44003077609.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_off0000e77e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE77E | 5780 bytes |
SHA-256: fdfdb1a444d55f0664aec25b41675c2add8692f3993bd32db84bec642b57b3f8 |
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font_01_sfnt_off0000fb58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB58 | 10856 bytes |
SHA-256: 3c88913b987be0cd8be20a9e91f2eada5fae8e6b381fb8e3334e0b92b775dbee |
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