MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it functions as a link farm pointing to compromised CMS uploads and disposable hosting. The 'SE_INVOICE_LURE' heuristic suggests the document's content is designed to trick users into clicking these links, likely to download further malicious content or lead to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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 https://investmentskillsgroup.com/images/userfiles/file/pusetefijezomadefiteb.pdf
- https://cmoretv.com/userfiles/21606814148.pdf
- https://bakwanudang.com/contents//files/85494076735.pdf
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/etqlq70duka0k0o9oogsdl4k63/vozosadazamapo.pdf
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef3edcfa2a---dujokenezetilewawu.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb4e18fc66---jasilefebiwotupebomurojim.pdf
- http://amandatravel.com/userfiles/file/94879238854.pdf
- https://ckmusicdesign.nl/userfiles/file/geposunedexomejovemu.pdf
- http://zhhyhb.com/uploadfiles/files/73559218657.pdf
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/a1b8fed08688512968015a6b9fc6e79f/18124285218.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d69d42f4be---fijogoloti.pdf
- https://dm288.com/slicice/file/54354675784.pdf
- http://geyikkimya.com/userfiles/upload/file/dunizetatareboredurug.pdf
- https://ietc-oman.com/userfiles/files/33992477385.pdf
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/0dd4aff32987e0330564843306c87c47/wilawugikimapovenunomizan.pdf
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609496b56358e---5482360011.pdf
- https://panificioilcavaliere.it/userfiles/files/74955282220.pdf
- http://puppiesjust4u.com/clients/c/c8/c8a8d0e690f73854b1e7a5fbb9521f82/File/86741389095.pdf
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a8273fc9f3d---vivenutorifizexawepaxul.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/457f2ad9349d1b4ff5f3dd8d3f67ce45/19329548666.pdf
- https://boucherienabli.com/uploads/FCK_files/file/27120559246.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160b4cac651086---58497294011.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a200c776d31---98338288031.pdf
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/39m2vvi706ujb5uli9fhq4sq49/xenapijotudaxikewibidok.pdf
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/c2r617hfr1g5ue5htdab80l2ee/10910073080.pdf
- http://autosoftware.company/autoresponders_images/files/38954371656.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=23k+salary+after+tax
- 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_off0000ed72.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED72 | 16792 bytes |
font_01_sfnt_off00010584.bin0e17c37d9895305a2d7454595ff07794e2250d84d9cc46dfa405e3b3189c3ddb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10584 | 16824 bytes |
font_02_sfnt_off0001318e.bin42cb591877b1c889c9e574a49da16874b6975e8e01ab31b670aff380a62a1bc3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1318E | 10396 bytes |
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