MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a mass of external links, many pointing to disposable hosting, and is flagged by ClamAV as Pdf.Phishing.Trojan. The primary URL, 'https://coretry.ru/pbw?utm_term=ielts+writing+task+2+topics+academic+with+answers+pdf+2020', suggests a lure related to IELTS academic writing topics. The presence of embedded URLs and the link farm heuristic indicate a phishing or SEO spam campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 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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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://coretry.ru/pbw?utm_term=ielts+writing+task+2+topics+academic+with+answers+pdf+2020 PDF link annotation
- https://mubafuzolifuben.weebly.com/uploads/1/3/4/6/134644730/jinigotoxepa.pdfIn PDF document text
- https://zoxuzula.weebly.com/uploads/1/3/4/4/134489613/4509356.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4419206/normal_5fcfea4ddd36e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382627/normal_60172cc6d07e1.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4477164/normal_60b515261b8ae.pdfIn PDF document text
- https://bakijowo.weebly.com/uploads/1/3/4/7/134726649/8d47e317d3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486201/normal_5fde5c783cf9d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4465548/normal_6008191002db7.pdfIn PDF document text
- https://zedodunojoponex.weebly.com/uploads/1/3/6/0/136083391/vidipetekiro.pdfIn PDF document text
- https://betedodokadez.weebly.com/uploads/1/3/4/8/134882186/2537319.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/78cd39a9-e660-4ae7-8f04-4593a0a44e24/tuzovu.pdfIn PDF document text
- http://xuruzinijub.pbworks.com/w/file/fetch/144428643/transformers_bumblebee_movie_premium_scale_action_figure.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b71f9f53-713c-45e2-91c2-75d7f5003e58/10514755612.pdfIn PDF document text
- http://zilebunod.pbworks.com/w/file/fetch/144425070/58264658547.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ec08f45-dc76-4ec7-b517-64c6d9b8f01e/roomba_charging_light_flashing_fast.pdfIn PDF document text
- http://lijegazoz.pbworks.com/f/cebolla_informacion_nutricional.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/36dcede7-cba8-4cf0-aa94-ba06923d7f09/vezuludimuzorawurumebiji.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6cb81c36-0714-4c9e-aa5e-0384e7830d4f/does_philips_universal_remote_work_with_vizio.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e9765296-bacb-4c40-8135-fe1a97e0c9a6/lepagemis.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_off00013e40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E40 | 5936 bytes |
SHA-256: 5189b578b9f2294e2c5e3bdfff845e95ad4112b2cde4e201eae3cef4cac555dc |
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font_01_sfnt_off00015263.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15263 | 10236 bytes |
SHA-256: 9c1634b98457137e4ad402d85cde452e8109651950b2d62c365eca6b15d1eebe |
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