MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document employs social engineering tactics by pretending to be a guide on creating encrypted PDFs, while embedding numerous links to compromised websites. The 'ClickFix' heuristic indicates the document likely instructs users to execute commands, and the 'Password-protected archive handoff' suggests a payload is hidden and requires a password. The ML classifier strongly flags this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://smidgel.ru/uplcv?utm_term=how+to+create+encrypted+pdf PDF link annotation
- https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/002e588797fa8b19729c13b60aac0ede/34790981111.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fbc2fd9bca6fcca754547a2027a1f27e/peririranozo.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/791c4aa8edc7884bf041ec0673788a5c/mazixupom.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc6e09fdca---97529827100.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/82156852235.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608799e59991f---42983554411.pdfIn PDF document text
- http://brilspa.ro/userfiles/file/%5C/6277505075.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1606ffc5cb4ce8---zenulogovugipejizu.pdfIn PDF document text
- http://asesorgubernamental.com/images/file/pagepaboniv.pdfIn PDF document text
- http://adveotec.com/img/file/luniparokolobu.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/egvhakt3grakcgbkc044r5j7f4/jizisoramuvinakuli.pdfIn PDF document text
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/b07d352e11bf68df4ba956bcd9aef0fa/71473861496.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/nabelapevusajope.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/9b7c2a30878d1dff63b9a9982efa3a0f/55409887339.pdfIn PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078ae9f70973---27672294819.pdfIn PDF document text
- http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160bde5acd3421---geretipixozo.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_off0000dc97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC97 | 5096 bytes |
SHA-256: 25ecd597440cdac71904a9664abf423a8abc729d2ef4b24d49a8f562170c407c |
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font_01_sfnt_off0000ee17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE17 | 11204 bytes |
SHA-256: 7883e2c4a23244cae751f5df87fee016b4319d2b5d44c5276f1705f22b29bb97 |
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