MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous external links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm used for redirection. The presence of these links and the overall detection indicate the file's purpose is to direct users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://crysiq.ru/uplcv?utm_term=demon+slayer+manga+chapter+26 PDF link annotation
- http://aliceinformaticasrl.com/user/pages/4312625084.pdfIn PDF document text
- https://kristinanamaste.eu/files/31212336285.pdfIn PDF document text
- http://mistral-paints.cz/userfiles/files/26192723557.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c773cc47a32---14817184538.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/rktk96u9bv3hf8qa75uudf2o94/77847570354.pdfIn PDF document text
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16093b8a26b434---3266206618.pdfIn PDF document text
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/j2h4l4bc6c546k8guggd9ja1f2/55590954255.pdfIn PDF document text
- http://www.derbysignandgraphics.com/uploads/file/28261396114.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa0f67c66b---worenunoluzupig.pdfIn PDF document text
- http://geoodwierty.pl/files/file/dovikirebamadaxujanajipe.pdfIn PDF document text
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/ja0ihbg84t8rndl0lktetkcipl/wexotosuxabajub.pdfIn PDF document text
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/cb472944ba89af27dd36f6e2d4ab1c7d/fujekugaxajafixapobokesop.pdfIn PDF document text
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160a64b409e80a---44439436448.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a918bac5af3---buzetopenawogal.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608db273c6224---71989018197.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_002_off000108f7.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x108F7 | 30064 bytes |
SHA-256: b2c968409800239c9818aed100c30451a31a398a95151d01fb219cb473691434 |
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font_01_sfnt_off00016708.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16708 | 5736 bytes |
SHA-256: a6c279d52cbded2636c667ec67d807a9af8421a8f1d341c309f49386049bddf4 |
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font_02_sfnt_off00017a74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17A74 | 23532 bytes |
SHA-256: 058ddd3ad09ea34318cf0a1cad4b401e547eb6484c978b268b018bcd0b940e2f |
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