MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document body, though heavily obfuscated, contains references to a 'Christmas scavenger hunt for presents' and metadata indicating it was generated by wkhtmltopdf. The numerous embedded URLs point to compromised CMS uploads and disposable hosting, strongly suggesting a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://oniceh.ru/uplcv?utm_term=christmas+scavenger+hunt+for+presents PDF link annotation
- http://kirilmazbardak.com/userfiles/file/81957347078.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/6bfcafe405ada8992e8099840f1ded49/tubuwopuzet.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092fbaec8081---76041975998.pdfIn PDF document text
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e1e82e7f93---86015126717.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866629a0db5---jabexusewugesuwigen.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b487babcbcd---loronapojuzomipopiku.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cece74fcfb---wumupuradosoguvepi.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e382e51196---29843876847.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984163edd30---18311020465.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5625e7ee3---wogebidugoberu.pdfIn PDF document text
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/83hmhk541a9bvv0g4so0mkij21/42442842448.pdfIn PDF document text
- http://capitalclassof1971.com/clients/4/4c/4c1e4f015ba9b8bec237dc1ca705466d/File/78581156000.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160970682ddb0e---60206105035.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160747e2f9ea98---26907260184.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_off0000eda7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDA7 | 5360 bytes |
SHA-256: d51ebc0d01377a5a78b36a34d7f9f5dd1cbdfd3de5a9d844499522c72a27d5b1 |
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font_01_sfnt_off0000ffc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFC0 | 10840 bytes |
SHA-256: 02832bd1887507c41fada0bb3dfbcf7d5d689842acbc3f610900cb88e40fbcd5 |
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