MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI indicators and compromised CMS upload links further supports its role as a lure for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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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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://ketchas.ru/uplcv?utm_term=without+fever+typhoid
- https://baatco.com/ckfinder/userfiles/files/bakuwopu.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a24e37878b1---36554682488.pdf
- https://www.kcequipment.com.au/wp-content/plugins/super-forms/uploads/php/files/e5fb01ea48e090c1012f7ef1475edfe1/48724803482.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/jn9b7o6u5s0u5aop7h4juha802/vupovasivakedabazaminig.pdf
- http://manavpublicschool.org/manav/userfiles/file/57904164706.pdf
- http://diamondsnspurs.com/clients/12200/File/46775376413.pdf
- http://somersetcountybar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xurazukafofarudam.pdf
- https://akproauto.net/nbloom/fckuploads/file/sofunuvikepew.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/9e07d44591bd4dfe325d715a95df1c7d/42329412856.pdf
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/pm9i26nvlgqtcmo4jcl2np9gjn/91031832317.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac6bd413f4---rawexabinopeza.pdf
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/1510935a41212978528fe61ec57153f5/58650748311.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb6292afd4---20699053727.pdf
- http://rafaelokazakov.com/file/2245925701.pdf
- http://ha-sine.com/d/files/momowadunifukupudelisunan.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16085fa5fd8047---gesonizoveguto.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094a440666ac---91497452596.pdf
- https://burstallconrad.com/editor_files/file/wuronatu.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/45f653e6bb8076a2cfe14bad8e04ff2f/xamoditawixawo.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c15dcf61111---muluzaragulaborurotew.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16078401901d2c---fejeweguxixojefaridibi.pdf
- http://bielwod.com/userfiles/file/dupovategur.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/dd7018eb2d8ae31fe2ff2f22beb92b4a/1279998202.pdf
- http://vmkmsz.hu/userfiles/file/sijuvo.pdf
- https://menu2uplus.com/images/file/tidokuzusarud.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d36ce959aa7---xixukesidunivuzudazoxu.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f512.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF512 | 16792 bytes |
font_01_sfnt_off00010d24.bina0c48eb17522ef22307efe6054e5024e05fefb125a77fa48a3958f300d1382e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D24 | 17004 bytes |
font_02_sfnt_off000139c4.bin363529bd0a5185eb0e53fd36ffb1d06bcc10e1287e99c6b666463f1176e11a8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139C4 | 10388 bytes |
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