MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to distribute malicious content or phish users. The 'SE_CALLBACK_LURE' heuristic indicates the document may also attempt to trick users into calling a fraudulent support number.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://crysiq.ru/uplcv?utm_term=placing+a+hex+on+someone
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/b921ffa6e454204c2747e27265f0cfa2/23145122694.pdf
- https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/115vsrfkovu9ih8b6bnd1tc0u7/30352266922.pdf
- https://fnb-concepts.com/images/uploads/files/56591130579.pdf
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16072ad987be44---wiwaninevokulatuvo.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/e9b8544bebbbdb52f58fc66b39706676/23573917878.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/7tn7q3mvoee752omca5vku4dq3/190725203.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce18ef2b53---jinevafajutimokixaxoki.pdf
- https://oncetrabzon.com/resimler/files/87814042331.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16085d66b2dc6a---lesafokimeron.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16073fa99e146b---lojivojatutag.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2cc55dbecb---gufage.pdf
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/b01cb35d75731841cf06e5c151f52023/vuzusibesogen.pdf
- http://beerskiboot.de/img/upload/file/sakibexuroda.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608f403e4dca7---67527189298.pdf
- http://makinsushi.com/uploads/files/73752827670.pdf
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/c2e6c5cc7915876dccc8907644d59091/91729773928.pdf
- http://espacioschillout.es/images/admin/file/vunonozaxuzukotereredoma.pdf
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/8cf1548ef427efdb264e6cde7ad9b71e/21112134978.pdf
- https://ludifrance.fr/userfiles/file/93265045294.pdf
- http://cateringkieuan.com/uploads/userfiles/file/wubodufelakadika.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/ab2b80e54860d2b7ae88c637c04785a0/winowalakizujipizufanafi.pdf
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16088711911080---juzigiwuludevebifov.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/ec409112220e6d1073319215a38099fc/4225148404.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c02f684dd88---28691718738.pdf
- http://jjinline.org/file_upload/file/dujariru.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/0953dssg8nsc4llspcctlch3j8/38238584076.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_off00011759.bin78a55b61fc9872457aab7fd7ee90aa28ec7df0c44cfd2d8aa0e9273f22f4c06c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11759 | 18056 bytes |
font_01_sfnt_off000146cd.bin4bcf6f96ad6fd14980697d6b63a4696987fad458e53daf98dadb6aee4883c81b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146CD | 10580 bytes |
font_02_sfnt_off00015ec1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15EC1 | 16792 bytes |
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