MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a callback phishing lure. It contains numerous links to potentially compromised WordPress upload directories, suggesting it may be part of a larger phishing infrastructure. Although no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely to trick users into initiating contact with an attacker.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/88f48404b05f0b05acfbcb9b19ce8043/75398434541.pdf In PDF document text
- http://valeneighbors.com/userimages/vugilogosevofovimino.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160745138034c2---3598598147.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608316d170312---tunoludav.pdfIn PDF document text
- http://koreanhotpot.com/uploads/files/14698839652.pdfIn PDF document text
- http://trendymamy.pl/userfiles/file/semufuwosagam.pdfIn PDF document text
- https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/a5934173c817e707e9a025c4e97981a5/sojadaximipitejusipomasug.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/2irbtud71gh1ufjgllh7bgnpcl/pavag.pdfIn PDF document text
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/6b05da3e0c9f5647737ba2c6b878edbf/rixatuga.pdfIn PDF document text
- http://scuderieverdina.it/scuderia/userfiles/file/29588424585.pdfIn PDF document text
- https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/retqbgh1fmdcm04c2cqmhjg9rb/fevosaxaxa.pdfIn PDF document text
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/a15c1ffd7b786946e499fd037cd50e50/72834505839.pdfIn PDF document text
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/90f7c83bed1bd38324cd0111b1d2c435/97119474290.pdfIn PDF document text
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/63ee98780496858952becfe8e16ecc2e/webuwipo.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d707b26895---25004296673.pdfIn PDF document text
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/uhmhine4rhlkdb460n92bh1jju/23203685022.pdfIn PDF document text
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089542c94155---kotigu.pdfIn PDF document text
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/iq6q483dn6i8hlbfm9psmo8d9j/98510793464.pdfIn PDF document text
- http://opusincertum.it/userfiles/files/31853544990.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a37de62fc9f---58174991776.pdfIn PDF document text
- https://healthmatters.me/userfiles/file/84214480387.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/qd0r9bfsodmcq3223phkm18i9m/pewixirow.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160749b4f5c484---95617786514.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/qtog486nf10budpdvch5ukcv95/towadenimuxujedokumasaxog.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/4116095425.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=summary+of+leviticus+chapter+3PDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF2B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010742.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10742 | 11168 bytes |
SHA-256: 4de22930b8142a4690b4c88446de2e2239335e5ff0023c77ac1ab9abcd9168da |
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font_02_sfnt_off0001216a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1216A | 16616 bytes |
SHA-256: 775e52883b2aa93d8502f3a9f347ec99a09f09b53e7510d53ce06142fc3b9116 |
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