MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple URLs hosted on compromised CMS upload directories. These links are likely used to serve phishing content or download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073929c891a4---98512431030.pdf
- https://cribpointonline.org/cribpointonline/userimages/file/26385245786.pdf
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/b1c725e66aa9a816067b51e392a6e202/tevaravoxavubizufuziko.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160887ed4c3580---43431535066.pdf
- http://romanakladatelstvi.cz/userfiles/file/fejokatuwofofaburiwojifi.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/0730e0a95761e83c801043c3d888886f/risuxudifibipalugow.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/84666306af9f1f627775a45095869808/91538775233.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/16070aa0ff09f1---18583929453.pdf
- https://www.jaegeraviation.com/ckfinder/userfiles/files/rowurulovukikisizesi.pdf
- http://tamlaproject.com/userData/board/file/gimasivet.pdf
- http://filtrydokoparek.pl/img/all/28856589634.pdf
- https://anhhuynoithat.com/asset/files/43793746968.pdf
- https://atlastoursntravels.com/userfiles/file/35822706297.pdf
- http://www.bluewhaleline.com/image/upload/File/27081029242.pdf
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/jokobora.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfc850ffa7---zobufijadiloli.pdf
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/diwumasubalavolevix.pdf
- http://ambulanceservice.pl/userfiles/file/91358517334.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/be8134c21522c81134ccf1cf4fb97bff/lerosebamebukipunururo.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090fe5b4b660---10500622389.pdf
- https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/44fcb671b2a82705fb460f0f4e6de870/bojezupepifa.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160af9d5d58442---lepiwujoxukotuvifiwusi.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/3d0rfatc298tc07ia1t32gq7em/7883819751.pdf
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b442517e32c---mejevologuxupulel.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/3e5cc85fa6f7cdfba2c3f410cd0c50a3/nelekixiwabubelogulu.pdf
- http://eska-lift.ru/userfiles/file/xikuvigifone.pdf
- http://sddshchb.com/userfiles/file/Fl202108072005147028.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=descriptive+writing+lesson+plans+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_off0000e751.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE751 | 16792 bytes |
font_01_sfnt_off0000ff63.bin1174a2f805c469fcf159732774b100956c68a065babef8b4087f70898e63884f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF63 | 18248 bytes |
font_02_sfnt_off00012ea3.bin4814df903af3a5a8176778c986851f4064d98e7a8621e477493b4999e1294ca2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EA3 | 10948 bytes |
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