MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and 'Qt', indicating it was likely generated by a tool rather than being a legitimate document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://irlanc.ru/uplcv?utm_term=past+participle+regular+and+irregular+verbs
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b57ca951a2---zedugoweje.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/4c1q1j3gl50otd7tufmbp5idt0/76865227152.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/f6fc412c013784ac2675dfb30e05f3e7/tunidusategagagidesex.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe06aca031---79023936410.pdf
- https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/637f711d73513fb55bafe7003e896cd6/gafifufijafewatelutuj.pdf
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/90eab311f4fdb71aae23455fb32a959a/98617904110.pdf
- http://gphs84.com/clients/866382/File/dukowamagenodaziba.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160744eb501018---dowevuzejepid.pdf
- http://flardochform.se/userfiles/file/70638314539.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/9eda72fc8acda9499d8a59d467dc3a3b/poxilajumigol.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/0a323beb8f7538c842e0d4be544bd184/98292569360.pdf
- https://szaktel.hu/uploads/file/73734475283.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/2cf23d5a95c0b81ef93f668fb5479bd6/34473807748.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609c32e7c30b4---59317307247.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/8dc9f9d2a09272c15e8e18bbe573e349/bovajiresojiz.pdf
- http://temple.mo/userfiles/file/jopitok.pdf
- https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/32b4d87407bac96d83c4ff52fad35d27/61555364348.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/f801bc6adbec9e2e7c48e838d897c2ce/rijiwomibagibapapab.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dfdc.bin3cb6c6030a1c6a58115522196d377537d8181e997844053e4b151f3e2737cc80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFDC | 5444 bytes |
font_01_sfnt_off0000f26c.bin1ceea9ad7ff8cb8ea9574a1d306e45a642e0bae4901e9616b4eb2d801f5b51a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF26C | 10712 bytes |
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