MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm for phishing or scam content. The 'SE_CALLBACK_LURE' heuristic indicates the document may prompt the user to call a number in a deceptive context. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest malicious intent, likely to redirect users to malicious websites or engage them in a callback scam.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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) 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://infrive.ru/uplcv?utm_term=how+to+add+cash+app+money+to+bank+card
- http://cpbnatation.fr/fckeditor/userfiles/file/rumepezigexivero.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087c0de3c551---76248710295.pdf
- http://cdmvt.cz/sites/default/files/87046981930.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/67a7494e9e1651bc227ca906db8cc0a4/gosutibusegev.pdf
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d875da5215c---82243120445.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/ojg8on82dk38go3c11nvqm76kh/93524670947.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c68ba64d408---94201954099.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6993fc1d49---55936102538.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160afccc903258---91833178020.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/2s6l9j30qsct5g3cjm4oo4idmr/48921348021.pdf
- https://communeouchamps.fr/userfiles/file/53987844663.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa6e08ab1e---bijesaweludimeni.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/g5ldhu2ap85pd4jvb4na6nv7de/begujet.pdf
- http://buergerforum-tirol.at/file/13874004198.pdf
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160afac773a1ed---79719997307.pdf
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a4f6aa90a6---gesugepu.pdf
- http://ceresasrl.it/userfiles/files/lokuv.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/058109c0257e838081555cab7236d6cf/poputigiruvigisi.pdf
- https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/0aff069a96ed198a726f9171bbb03ba3/munetebaweratofaxivuwem.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/c689133bdd7c91d59a6a931a0644189c/wisugunedibudokeko.pdf
- https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/11f72f05f01f71e32374ff094ff87e56/16439833829.pdf
- http://okmarin.ru/userfiles/file/68078671446.pdf
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/5039f229c3998e1550ac18835a0c7040/61824836908.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_off0000e8b6.binffe2233fe49973d4d2b8a61521cfb949e8a31e0d516176b24dfe6a4312afe446 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B6 | 11064 bytes |
font_01_sfnt_off00010222.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10222 | 16792 bytes |
font_02_sfnt_off00011a34.bin6770190a50d7a93b50e8b9be369ae2ffc2305e053ae0fb20f539ac1fff77731f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A34 | 16716 bytes |
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