MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm with numerous URLs pointing to compromised WordPress upload directories. These links are likely intended to redirect users to malicious content, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf725291e44---24876218346.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/t4au2t7lc2t2587gem6qto0dcm/56527906475.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b517abc61f7---63353080108.pdf
- http://billsky.ee/files/file/97494219758.pdf
- https://bbpartner.cz/userfiles/file/lojiroz.pdf
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/5c975c8bf5a6980f560540ba11b3862f/kinumajupi.pdf
- http://adams-gold.ru/archive/image/file/guxunofiruwagapamobubakog.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/utal3c3i1sqofma360rgl5u1p2/47451893353.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/654431315ee4f4377771e46a662383cf/33937705424.pdf
- https://aawyx.com/sites/default/imageuser/file/44994728434.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe59f89a6f---gulapezixuzozefuvijobizit.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/3323bf1f882a6ce0e8099e1767eb3225/nukenazusawezedukezababu.pdf
- https://calendarsunrooms.com/userfiles/files/wopoxuzulewi.pdf
- https://menu2uplus.com/images/file/fiwonesegotipi.pdf
- https://solener.info/ckfinder/userfiles/files/dejekejika.pdf
- http://neilreardon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/78086699952.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/kdjusi11knemangn1au977rg85/roxil.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0b897915a4---39747635847.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/e343a246e9961e14e0619f8edb840f97/27305476523.pdf
- http://fincasotilloviejo.es/files/sotillo/_repo/file/piwakuwonakasaxojojojaz.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16082ef1b12f30---jupibipemumike.pdf
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/6b76a46fa16da0487b68dd755fb1cd0e/likuzijebumepaxiriseko.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=enthalpy+entropy+difference
- 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_off0000d9db.binfbdee0ac950b3ff8a519018485bca9a76f5c7c4ec0dbd71463c4356f518a66fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9DB | 16712 bytes |
font_01_sfnt_off000105b5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B5 | 16792 bytes |
font_02_sfnt_off00011dcc.bin957c784a36015a30167db311caec3e6f05098568f52bea16b0d4c4656385abc9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DCC | 10644 bytes |
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