MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document's content, though obfuscated, suggests a lure related to a "Zombie survival guide book pdf", likely a phishing pretext. The presence of numerous links to compromised CMS upload storage and disposable hosting points towards a phishing campaign aiming to distribute further malicious content.
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 http://www.sport-konyv.hu/userfiles/file/nerumabu.pdf In PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/837039543216c60a8a7d8c563d22013b/69887893292.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a20e87f0caa---5622977103.pdfIn PDF document text
- https://pima-alarms.net/slicice/file/2795046509.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/1lmnb38cmn3pvn2bv2mlvm4a47/1720518346.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160899eb290e76---dekaxixinefafokipivibuk.pdfIn PDF document text
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c6de7c76a3a---43164870636.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c973db6cf49---lasokaposodebovoruvu.pdfIn PDF document text
- https://eminencesolutions.in/resources/userfiles/file/warorevubuvufi.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1608173165b9b8---boxakej.pdfIn PDF document text
- http://librojuridico.com/aym_images/files/dusuwoku.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b63a12b261c---pazaju.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160bf42187f49f---fagixawiz.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a7bbdce46a1---13271602748.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16088cdd5b896e---fupagidemavozivuti.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d8799e102---dovewuzikemame.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=zombie+survival+guide+book+pdfPDF link annotation
- 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_off0000ef35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF35 | 5584 bytes |
SHA-256: 316b9052765c241efc34b555c24832545c3c6b6fc6c3a3dde7850964d3ccefe5 |
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font_01_sfnt_off00010221.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10221 | 11396 bytes |
SHA-256: ee85cb2bfeefa03f74dfe87b017d1bf7fb0fd4679048810b54ffd23102b6b376 |
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