MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm designed to redirect users to malicious content. The heuristic 'ML_NYX_PDF_MALICIOUS' and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body text, though heavily obfuscated, contains references to clearing cache, which serves as a pretext to lure users to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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://philabc.ru/uplcv?utm_term=clear+cache+for+all+apps PDF link annotation
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/76a555cf0d0382dc6ef711f28cf6d58a/93536078280.pdfIn PDF document text
- http://laweasy.kr/userfiles/file/34760198713.pdfIn PDF document text
- http://uptownchantilly.com/uploads/files/tezakibezamipawisurap.pdfIn PDF document text
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb63b9d8dc---15339140132.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160884dc36da6e---mixexuzopapigarexo.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080389a0ca51---36379428417.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/sqlo96ln3e4ct00c69md9lv6v0/zijew.pdfIn PDF document text
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/9ecgeie36pumgj3nc0sv3gqj80/41861209668.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/ed6203d1adc8a82494659fb0ede8d777/76605524542.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/7c42b061bd3a0359d201822d5037536d/varojixezanifoxisuxoxige.pdfIn PDF document text
- http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/jifobebiguxaf.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/wanisotekinexegiwe.pdfIn PDF document text
- http://pogservice.ru/userfiles/file/zovesadezujikeso.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608908c9f407e---30425417662.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc15a842bd---5192470098.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef1f73e579---5662865214.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000edcd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDCD | 5008 bytes |
SHA-256: 08c243dd4cb18d9da309c16c554c3cadf25a31110ff1bc74f9768330f881f295 |
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font_01_sfnt_off0000fecf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFECF | 10536 bytes |
SHA-256: daadf5e4f18eb0d33ea8f6dee7aff98f8346a1f09284c6ac245209319a48a98a |
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