MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://crysiq.ru/uplcv?utm_term=active+and+passive+voice+worksheets+for+8th+grade+with+answers PDF link annotation
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c9545949a08---jelawisu.pdfIn PDF document text
- http://lustigersteirer.at/userfiles/file/6225293205.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16097449820acd---kalujafedixafuxip.pdfIn PDF document text
- http://sansboundaries.com/clients/f/fd/fde0d4b6b324343791c5f0705b221951/File/69699876088.pdfIn PDF document text
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608d48f5ce316---vuzagafobudeluzolijen.pdfIn PDF document text
- http://pallenberg-busreisen.de/uploads/files/94647887173.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160be63e23f2f5---39336910983.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/3fafvp3q9dq4u4cnp0im97tq05/kugux.pdfIn PDF document text
- https://alkathirilaw.com/userfiles/files/10986066613.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609d269c24990---ladaxogozewunasokuvadefov.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fbfd5b13466---tovomemumotubipelajefu.pdfIn PDF document text
- https://giant-nano.com/app/webroot/userfiles/files/64532378343.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/0f300d4379763db102359aa38113eb23/wefugizaz.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/xijinazagofafisoj.pdfIn PDF document text
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/p1fagg8g0fqaafk7otdtdtear3/53875332675.pdfIn PDF document text
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/8e5ef4bc763d092be32747025098e66e/kakofixotalobaxupuwug.pdfIn PDF document text
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a72db655fc---60072249503.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/054d58cd04cfaf3ff369b6585c6bc826/75692925431.pdfIn PDF document text
- http://irina-beha.com/ckfinder/userfiles/files/78715204333.pdfIn PDF document text
- https://avenue102.com/uploads/file/84322848405.pdfIn PDF document text
- https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/64014059081.pdfIn PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/fdf612e11642c328cbda631825ee2209/xulozozilefufaxerotazikox.pdfIn PDF document text
- http://victoryelectricalsupply.com/ckfinder/userfiles/files/39858453263.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/fe34fb7a84a287418a7dbdab862d9053/gafokefima.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/14766767359.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_off0000fdae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDAE | 17828 bytes |
SHA-256: 383bdc2b68cb8cb0d92e6205610f1f75be4fc66adba45cb1d265466674c2bd52 |
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font_01_sfnt_off00012c8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C8A | 11284 bytes |
SHA-256: 11b70ee93861ea37c2c7d29e588c1cd8699e73497b293b84fb4054f993e53d17 |
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font_02_sfnt_off000146ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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