MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. It contains a link farm with numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an effort to obscure the ultimate destination. The heuristic 'SE_CALLBACK_LURE' further suggests a callback phishing or tech-support scam pretext, likely intended to trick the user into interacting with a malicious service or downloading further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://coretry.ru/uplcv?utm_term=comfortable+living+ac+and+heating+llc
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/67497823860b6ff15061e1.pdf
- http://mobilenmr.com/files/files/vupomexagorafoder.pdf
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fe7b2116e472eb481885d7553ab01f37/vamome.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/26662d628e7af2a3cfa7d04fa8eba554/86732092779.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/3b68bfa8971264425c9f420ccada0b22/55403169012.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607497e3c1f4e---24199942478.pdf
- http://abpaluso.com/upload/file/55904016916.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/8288c3ec506353e7c0ccc50afc9bf81c/vuguwewiv.pdf
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085ed12200a0---98987991228.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/s586ilviu80jqjeu15u3p2gq2k/sogujoxaxasilex.pdf
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/bd18d3e011c39540344598321870f021/14727320011.pdf
- https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/872fd31205b1110616bbdb77a1466635/72700024006.pdf
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/671d1d41018c400d2a13179cb97963a8/nojibuxunosoj.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/m0i5d162vetlgbc20ll864scq8/bibikowozofitofixokupob.pdf
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/b9ae821db1577e2659ff077e4a88fae6/sataziwek.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/ac575b400a82efc5fdb771184372669b/dozekilosolitibolelivubev.pdf
- http://pronobile.de/catalog/file/68057470812.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4992ecba98---91718345252.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160a06b0bcd513---8567746899.pdf
- http://parfumerieindex.nl/images/uploads/94973247911.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/2j9hl68q2s2a0li22ee4ldojj0/18738083265.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/dbf89403593a0d1851dce4e1d7b1ca41/47705724008.pdf
- http://heureka-cz.eu/files/31936896069.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/1d3bf7a2cff4fb791067aed39baf22f9/pejebivikawibafo.pdf
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/dce5505a3eacfa214cf7846d8dacd271/denulobudolenozasosil.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e364341b8f---99192246235.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_off0000efdf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFDF | 16792 bytes |
font_01_sfnt_off000107f6.binda931e7a23722f920cf7bdcd8651542c351717b13d00d4bab65b37ebcfcc6300 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107F6 | 10992 bytes |
font_02_sfnt_off0001211a.bin3b1b38741b6d093921ff8cc57285710ca44555d4a7ac20d51cdb6cd75a25f240 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1211A | 18292 bytes |
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