MALICIOUS
252
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many pointing to disposable domains and potentially malicious redirectors, indicating a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to distribute further malware or phishing content. The heuristic 'SE_INVOICE_LURE' suggests a pretext for the links, though no readable document body content was available to confirm this.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://yafferge.ru/aws?utm_term=innova+3100j+obd2+scanner In PDF document text
- https://mimevomakiket.weebly.com/uploads/1/3/4/6/134693464/3f7e814.pdfIn PDF document text
- https://cdn.sqhk.co/niramojiga/big6jhb/xazuposarovelobuzax.pdfIn PDF document text
- https://zuwuloju.weebly.com/uploads/1/3/2/6/132681456/3885103.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501046/normal_5fe27f5b322d3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486748/normal_601f623e32af0.pdfIn PDF document text
- https://fosobezi.weebly.com/uploads/1/3/4/8/134898374/ropobawawezeko.pdfIn PDF document text
- https://zifusiwi.weebly.com/uploads/1/3/4/6/134686012/xetose_zoxunataropi.pdfIn PDF document text
- https://pigukoziluluz.weebly.com/uploads/1/3/4/8/134896600/69182d.pdfIn PDF document text
- https://dikijezirepa.weebly.com/uploads/1/3/2/8/132815872/41bd5.pdfIn PDF document text
- https://cdn.sqhk.co/bufomofa/dij7jhD/95484947112.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4488815/normal_5fdd13c7b4da9.pdfIn PDF document text
- https://cdn.sqhk.co/dijabidasu/gPCC2Ox/choice_of_the_dragon_walkthrough.pdfIn PDF document text
- https://disaximineta.weebly.com/uploads/1/3/4/8/134883765/37238fa7.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413117/normal_5fc9c24022ccb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374024/normal_5fd1e2446488d.pdfIn PDF document text
- https://bojubuloxobepi.weebly.com/uploads/1/3/0/9/130969884/sisumiduk_kejav_nedew.pdfIn PDF document text
- https://cdn.sqhk.co/livefivepa/digghia/neon_yellow_wallpaper_iphone.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tonisefoteka/99943464899.pdfIn PDF document text
- https://s3.amazonaws.com/gopuze/fajosegu.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://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_off0000e372.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE372 | 5604 bytes |
SHA-256: 909b5acf913a6fc4ed48556ae6e92b4841181333d37fca9bbae264d1753cb687 |
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font_01_sfnt_off0000f697.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF697 | 10888 bytes |
SHA-256: 401cd7d2fa2b2a923127e6f4ee6fb8f3b61fd5693e00bc3c3254045ab69b4654 |
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