MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://chcial.ru/uplcv?utm_term=hate+love+quotes+in+english PDF link annotation
- http://seasonsblinds.com/uploads/ckfinder/userfiles/files/matuposagasobapibe.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/abd8b47f3d6848600f261220dee6cbe7/22242738426.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/161336a0ac5e24---98669062342.pdfIn PDF document text
- http://xn--80akoseq9f.xn--p1ai/userfiles/file/30482766440.pdfIn PDF document text
- http://behtarinekhodetbash.com/files/files/seginoritunivuvedozaz.pdfIn PDF document text
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/80345677536.pdfIn PDF document text
- http://qdsenfeng.com/data/files/padiwalefiwofi.pdfIn PDF document text
- http://nedirajtebosnu.net/userfiles/file/lujuwojonirusajogegewor.pdfIn PDF document text
- http://zawodydrwali.pl/app/webroot/userfiles/file/duwunumelu.pdfIn PDF document text
- https://creteotels.gr/FCKeditor/userimages/file/xukasedur.pdfIn PDF document text
- http://retrolondontees.com/userfiles/file/rewatutejurakidowomos.pdfIn PDF document text
- http://sloplast.com/userfiles/files/tejofolus.pdfIn PDF document text
- http://air-con.ru/upload/files/safapujowikegumenikadapu.pdfIn PDF document text
- http://lmtechsolution.com/userfiles/xususef.pdfIn PDF document text
- http://mrhobbscoffee.com/images/uploads/file/34932355643.pdfIn PDF document text
- http://pabxlg.com/userfiles/file/16582847047.pdfIn PDF document text
- https://imad0c0.com/js/ckfinder/userfiles/files/tulonufobi.pdfIn PDF document text
- http://mingmitrcoffee.com/user_img/files/8305183340.pdfIn PDF document text
- https://mycocoa.org/images/upload/files/82388441832.pdfIn PDF document text
- https://bbu.vn/Images_upload/files/remofikefapefupigeba.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/779a293a45d16505202ed37e8bdf065d/8363822547.pdfIn PDF document text
- http://colokit.thienlonggroup.com/Images_upload/files/lisisejuwalogowisarofute.pdfIn PDF document text
- http://gesundezellen.com/neu/userfiles/file/27584340845.pdfIn 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b1ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1EE | 16612 bytes |
SHA-256: fb193a3a820db79e1b2bfcfefda419887b4a32b01f12fdca5504c965ae6bdbaf |
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font_01_sfnt_off0000dc2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC2E | 10592 bytes |
SHA-256: 71b0b3eaafd711aef9a183913b240af73ae83ad698052022dbe091cb93a41ecc |
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font_02_sfnt_off0000f3fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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