MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external URLs, many hosted on compromised CMS platforms, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://archism.ru/uplcv?utm_term=how+to+determine+an+odd+function PDF link annotation
- http://angelascanu.it/uploads/file/jokoguxewijoli.pdfIn PDF document text
- https://meridianchem.com/meridian/ckfinder_userfiles/files/94883587845.pdfIn PDF document text
- http://lsbwg.com/ckfinder/userfiles/files/20210922/183757133.pdfIn PDF document text
- http://co-wemart.com/careeruserfiles/file/89415583708.pdfIn PDF document text
- http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/35178402193.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/898110cac2db73c9b31a36a2e063804d/16925281925.pdfIn PDF document text
- http://hk-bbc.com/upload/file/solaforusubajuz.pdfIn PDF document text
- http://jcnjl.com/userfiles/files/82990117866.pdfIn PDF document text
- https://onutglen.com/caningest/images/file/50994132512.pdfIn PDF document text
- http://tradotel-riviera.com/file/83123297279.pdfIn PDF document text
- https://santchavarabed.in/ckfinder/userfiles/files/ronobezuxewesitomifowaju.pdfIn PDF document text
- http://fsf-vastroad.com/userfiles/file/5465770845.pdfIn PDF document text
- http://wxmx.cn/upload/ckimg/files/202109202107356553.pdfIn PDF document text
- http://valosagoskincsesbanya.com/upload/file/94993770379.pdfIn PDF document text
- http://americandeliorder.com/uploads/files/lejaped.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/9a173d174b525b00217a3271da3b7a22/nifoxekedefatesesasarar.pdfIn PDF document text
- https://balticstroy.com/uploads/files/96095440782.pdfIn PDF document text
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613c5f322fb08---mewutu.pdfIn PDF document text
- https://grandplaza.bg/uploads/assets/file/bezalu.pdfIn PDF document text
- http://gustosandvic.com/ckfinder/userfiles/files/dezurakosofego.pdfIn PDF document text
- http://clair-environnement.eu/catalogue_dynamique/file/40490169091.pdfIn PDF document text
- https://satesayap.com/contents/files/xilib.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616297b31852f---tibowibugututamamibekuker.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/67288a574e31fa92e6107d669417fe97/wasetaxowejivebor.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/8ur8tp9q81t0frtpap6u6gm8ec/20031511272.pdfIn PDF document text
- https://ural-aiti.ru/admin/ckfinder/userfiles/files/kowedopupefuzefefekat.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_off0000d9f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9F3 | 19436 bytes |
SHA-256: 66e380e6be761440560601e11ef4c1f395d627f2665859afd74245bb1f58435e |
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font_01_sfnt_off00010c07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C07 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001241e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1241E | 10600 bytes |
SHA-256: 703582402494d21374ae50c85d50dbc16a43ea75d44cd947dcc5ac3acbbabb64 |
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