MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The sample contains numerous embedded URLs pointing to compromised WordPress uploads and other disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body, though heavily obfuscated, contains metadata related to 'civil engineering drawing' and 'wkhtmltopdf', likely serving as a lure.
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://wastran.ru/uplcv?utm_term=civil+engineering+drawing+by+m+chakraborty PDF link annotation
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a29fc6fac8---pewewagulomebenuwigilovi.pdfIn PDF document text
- http://posekatzahradu.cz/files/file/dikemovazatuvimomatekedox.pdfIn PDF document text
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/0ecff1d68473bb3ee6fef158b033654f/sikiredewudav.pdfIn PDF document text
- https://binarbaidtrading.com/public_html/userfiles/file/xitijufapavisab.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/basinavakoj.pdfIn PDF document text
- https://emmaushuis.org/pages/8526137386.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/83353068819.pdfIn PDF document text
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1d2ab6e33---pitisapisewapefiged.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160825ad28051c---pikufaxajatotel.pdfIn PDF document text
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/6f8e856e64dd02c0857c6e58ad5cb548/74184153302.pdfIn PDF document text
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/mpfid5731qld8bn665cbjc23gt/73210666098.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160735675f26d1---71190582615.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/717fc251bc7e454e659803f192b5f24c/weralimalitipo.pdfIn PDF document text
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/j6do4q379dl31rtavmeu2m2298/91605638099.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099bbd669b92---luselifelazopa.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/4ce51f75966dd0c78dffbeeef8b9bcb2/rujazatusibanotu.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_off0000e86d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE86D | 5540 bytes |
SHA-256: 3518428e1eba0854a8ba28fcd585b8c78a8842795ac1ca01df26edad2e480f64 |
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font_01_sfnt_off0000fb28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB28 | 11104 bytes |
SHA-256: 76744e527c2e0496171dce5b7c618de31c2402648698f5695ea3ff9d22528c6a |
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