MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress upload directories and disposable hosting sites, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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 http://ukicda.com/admin/fckeditor_upfiles/file/2021060420082980554.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aac4b7f3a2a---88443124791.pdf
- http://polletnv.be/uploads/files/51182442871.pdf
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/97bc4b4db1959dbc807588641e68b6e3/86369996567.pdf
- https://eviinstall.com/userfiles/files/savapubepipizugajopimapi.pdf
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ab88e0483---zawidesojuvojegik.pdf
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ad1d53b2ccf---47089983847.pdf
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/7efd514ea63b67a96377d8ca40940469/ledamumamatojefagusanorij.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609129d6a50be---pemimoxa.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/2f85b30e68a150d34360d8eabf829b8d/larexepizaziguwow.pdf
- http://www.sec-ollivier-associes.fr/www/upload/file/70670569774.pdf
- http://kythuatviet.vn/uploads/userfiles/file/82150746718.pdf
- http://dmhu.eu/uploads/uplib/file/15565296295.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfbae65d03---vekirajumifaw.pdf
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160940ada18437---gikifijuwizagowidufumojer.pdf
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4a73377845---muwuvetitadilotim.pdf
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/4cc3ca267e84019a158e2da1b2aa80ac/lowura.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160efde31e8f0e---58772479695.pdf
- https://airflow-skateboards.com/upload/file/walorenikaja.pdf
- http://chrislahoda.ca/userfiles/file/29080024528.pdf
- https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/ff0a65a361facfa7d4211051092d7e97/54148265742.pdf
- http://kokocurry.gm/userfiles/file/gewir.pdf
- http://asupuro.com/upload/save_image/files/25687590752.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=whiteface+mountain+location
- 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_off000121fb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121FB | 16792 bytes |
font_01_sfnt_off00013a0d.bindfa89dc9faac89118c127b28319fbcb6dbc4bf85d0c204a53a2cf63c5ecdac1a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A0D | 18088 bytes |
font_02_sfnt_off000169ec.binfcf58f821b6004ff30e0a4ae412af8e815c3fc74f4d0858b402f0b32d504ab7e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169EC | 10424 bytes |
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