MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites. Heuristics indicate this is a link farm designed to host malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these compromised hosts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7549531ec---20147408234.pdf
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160befb191d5ed---67205532119.pdf
- http://xn--or3bi2da319p.com/upload/fckeditor/file/43473805916.pdf
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a7e37d226---26227978151.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608a483f8d443---pumegirimepimowex.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7745a7fd8d---riziwosisukogujilelizodoj.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607913afb6ec4---9809129047.pdf
- https://festival.bg/fckeditorfiles/file/9658888936.pdf
- http://bizbecho.com/pa/trainstation/uploads/image/file/mugupikobija.pdf
- http://masonlegacy.org/clients/61515/File/bixoviwodabujufu.pdf
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/635725f9a4a7bd64821e69792244f366/lotorotipewukujiwi.pdf
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/5723b533c79c592e65184bf5055ff94a/83348930904.pdf
- http://cafehinglung.com/uploads/files/20604079.pdf
- http://jshtextile.com/UserFiles/file///46981187375.pdf
- http://solarissoft.com/img/userfiles/files/12111081707.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160aa95f400340---85054018414.pdf
- http://bigxra.com/uploadfile/file/2021062118084073499.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a16698ef8c8---50722904288.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/vkn9dnkd21k3qg2uilsmdrthdu/16484140388.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4f02d836d---11487117252.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609faecf63bac---19286526640.pdf
- http://zaun-produzent.de/userfiles/file/bogenitedilubariweropepo.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160df4dd78f0eb---52464266490.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c34da09db00---39864005701.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=how+to+make+a+remote+control+helicopter+at+home+simple+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_off0000cac3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAC3 | 16792 bytes |
font_01_sfnt_off0000e2da.bin46f9e2cd36709f894387b9381d59fc8ce8f66ac218bfc02d5a7088e37fbd75a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DA | 11056 bytes |
font_02_sfnt_off0000fc58.bin302c176ffff7317d07d63d48e966337dfef73dd9d87e32e165c90834eec73bf9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC58 | 16232 bytes |
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