MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution attempt. The presence of a malformed exploit stream and ML classification strongly indicate malicious intent. The document body, though heavily corrupted, contains references to 'five nights at freddy's download sister location', likely a lure to entice users to click on the embedded malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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=five+nights+at+freddy%2527s+download+sister+location PDF link annotation
- http://alibabashipping.com/userfiles/file/nevigizumemenum.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/f01f1c977ccf44b152d8ba19a887e7bf/65697930744.pdfIn PDF document text
- http://alpha-th.com/userfiles/file/22804903696.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090f7d449ca8---59183451312.pdfIn PDF document text
- http://bidmitt.com/img/files/file/kadamazekofatarakir.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/f510bd176b82156c0f6cc6f594f1bb83/79295600245.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/f3dbdeb27238bb7c7c52104423692f79/vowiputefefigon.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/4saj5pdb24q857ckleghr484kg/mixowugezufav.pdfIn PDF document text
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4e4377dbb---sovagaladiganevaloluxo.pdfIn PDF document text
- https://dolaodong.com/userfiles/file/bufaromedavibokena.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090a049b9df2---9808844692.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/40f1e0fca462d178bff1d6ce2484a408/95799316760.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160940ca8ab09f---bizowuzebosegas.pdfIn PDF document text
- https://stopserv.ru/files/file/tosopinozigoxefa.pdfIn PDF document text
- https://chmelo.hu/sites/default/files/file/lemosalowodopinupen.pdfIn PDF document text
- http://ranaghatpchsschool.org/userfiles/file/4002215591.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_off0000e5de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5DE | 5524 bytes |
SHA-256: 16971ba361afa70cd9ee9fa9e99cd179d95f6452428535abe7a4d6b911408395 |
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font_01_sfnt_off0000f8ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8CE | 13388 bytes |
SHA-256: 56444eecbed8879e7f483bb752e69c2a5c470e1e583821a311ff7a9ef3687f39 |
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