MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics point to the PDF acting as a link farm, directing users to compromised WordPress sites and other external URLs. These URLs are likely used to host phishing content or distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://drafthe.ru/uplcv?utm_term=how+to+screenshot+on+a+galaxy+note+10 PDF link annotation
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c226a6c0ec---vafafegesexulek.pdfIn PDF document text
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/462f991f8bbc3939cf9422a85dee7daa/rozorasosidil.pdfIn PDF document text
- http://thaoduocvn.com/userfiles/image/file/67756747163.pdfIn PDF document text
- http://mistral-paints.cz/userfiles/files/60205216692.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136383131ff1---katawaparadiparu.pdfIn PDF document text
- http://sun-green.be/ckfinder/userfiles/files/90044183808.pdfIn PDF document text
- https://textosl.com/upload/editor/file/56510450926.pdfIn PDF document text
- http://dabaizhongxue.com/upload_fck/file/2021-9-8/20210908044329944986.pdfIn PDF document text
- http://app0.linkeo.it/ckfinder/userfiles/files/wegoluvotelevupurixa.pdfIn PDF document text
- https://congnghiepxd204.vn/upload/files/29382839917.pdfIn PDF document text
- https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/litepadivefuwolaven.pdfIn PDF document text
- https://vietucmould.com/img-vietuc/files/16485194776.pdfIn PDF document text
- http://tindangnhadat.vn/upload/files/tigofugikexaz.pdfIn PDF document text
- https://korovin.org/site/img_ufiles/5024937621.pdfIn PDF document text
- http://leeclinic.kr/userData/board/file/puxepuliwusenexit.pdfIn PDF document text
- http://handinks.com/ckfinder/images_store/files/rufem.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/1dv68osodsgrt187sgkrhhqdqd/45923189132.pdfIn PDF document text
- http://ng-sons.com/userfiles/file/fezigat.pdfIn PDF document text
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613249dadf4ef---45285116930.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1612f3a2eec927---xowexanexivawomek.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/97743268520.pdfIn PDF document text
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/22632226610.pdfIn PDF document text
- http://ghettaetamionarchitetti.it/userfiles/files/dugosefiwunusukinabaz.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/wedol.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://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_off0000de74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE74 | 17928 bytes |
SHA-256: eeea6582091e8cdd781e35508e7ed49094ec601cd2d8738bb230bb09c661d4c2 |
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font_01_sfnt_off00010cd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CD1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000124e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124E8 | 10884 bytes |
SHA-256: c0501d20b9a5f7756a1b9233c567812902a13f12bb2dbc060fcecc6a33e642a2 |
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