MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised CMS uploads, suggesting it functions as a link farm. The presence of these links, particularly those on disposable hosting and utilizing UTM parameters, strongly indicates an attempt at SEO poisoning or phishing, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160a57a78851c5---xegoxapulaj.pdf
- https://gangnampools.com/contents//files/87790876865.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160785c990f4d6---xolegesokabinolezobef.pdf
- http://runningrhinelanderrabbitry.com/clients/875187/File/45508901305.pdf
- http://snnet.kr/board_pds/fckeditor/2021/08/file/powilejonunatol.pdf
- https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/42903cb2cbea3c18c2a1af1b8f77a283/refabo.pdf
- http://mosjob.ru/images/file/21997433379.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16087991314ec4---memupogulibajadigavagoxoz.pdf
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/99hjf1j45lgrisj2aa5vpknn95/13729285708.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612ae47900c51---86857183546.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/ba23c2f6f45aea37472b35e8ef558c94/80974291570.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161277282e8bf0---rojomotiwulixerolozom.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baf6bccfb06---gexajimavomazajawetorasiw.pdf
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/76b953f0b764426f103ee8a2b5d19f4b/93450787729.pdf
- http://halaljones.com/uploads/files/35742826169.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/b4013d6a331d4429f1929649ed69fb69/vateviwofelajevisu.pdf
- http://indigobaby.eu/upload/files/5253231508.pdf
- http://personnelstrategies.net/userfiles/file/26488522879.pdf
- http://travelport.pl/userfiles/file/65172579030.pdf
- https://cleartunemonitors.com/ckfinder/userfiles/files/19670601920.pdf
- http://come2menorca.com/images/file/nagadujufajazunedin.pdf
- http://bmsorganica.com/userfiles/file/mafozijakobabago.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/f8e23da9e4ccce5c060d3e077f0f85ca/21397820033.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/brtc115gr3hrkvvjsichhpsb45/xonekawig.pdf
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/mh0id72an241pd17gcrqgos1b6/8002148985.pdf
- http://eastindiaspray.com/suvra/eastindia_spray/files/luxekaragabuxobapelomolo.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=types+of+sensors+and+their+applications+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_off0000ef63.bin46b2e858ea08c86e0caa78d980918811672e984348ba3b5f61ce068445660401 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF63 | 18328 bytes |
font_01_sfnt_off00011ed0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ED0 | 16792 bytes |
font_02_sfnt_off000136e7.binef199a61a9feb58f1a913e8423e2d50c85612786057e96b2182f3a6da7637bc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136E7 | 10796 bytes |
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