MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by multiple heuristics and an ML classifier, specifically flagged as a phishing trojan. It contains a large number of external links, with at least 30 identified, suggesting a link farm designed to redirect users to potentially harmful content. The presence of multiple disposable hosting domains further supports the malicious intent.
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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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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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://ponafet.ru/strik?utm_term=carlton+gebbia+worth PDF link annotation
- http://suziterunedoloj.sportsontheweb.net/what_punctuated_equilibrium_mean.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473892/normal_6032bfb39683e.pdfIn PDF document text
- https://cdn.sqhk.co/dosojegomugu/VFgdjfk/91456151123.pdfIn PDF document text
- https://cdn.sqhk.co/jijekabadox/AWbhtja/houseparty_app_logout.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475734/normal_604d36ca6984d.pdfIn PDF document text
- http://fisareboveda.getenjoyment.net/68192308449.pdfIn PDF document text
- https://cdn.sqhk.co/zegofurop/yjjHibV/auto_reply_email_sample.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419195/normal_606a389530aee.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410462/normal_6020345c11700.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469645/normal_6028a78e1a65b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483075/normal_60037b18542e0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490133/normal_6037e54e89556.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393181/normal_6031adc047874.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/23755579-02e1-4492-8521-8f949f7fc44b/built_to_last_book_amazon.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2784d3b5-7f1f-4942-8cd7-046e25190bec/81733092949.pdfIn PDF document text
- https://ce55c564-0e79-48ac-bd91-a034cff8554b.filesusr.com/ugd/bd1fc0_6bf1b7694d824f41bc3b4e81b6001bfb.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/bd338e47-a7d5-41ba-a0b7-bcbfe482a8a3/55505150585.pdfIn PDF document text
- https://b595a6f9-6bcb-48d8-acfc-7cb8c696cf55.filesusr.com/ugd/21f311_9c4adaa6ceb04c7db262daa6c48cd8ee.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/73f1c499-de63-43ef-9c21-b3aff5b77881/48945620305.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ec756517-34e8-4d69-a8b3-816b405e0a78/cuantos_tipos_de_sistemas_operativos_linux_existen.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000faf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAF6 | 4812 bytes |
SHA-256: afc565124f3a74094d75fea527a00244a62e0477b58974ebe2ce6313d465ca38 |
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font_01_sfnt_off00010b5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B5A | 11476 bytes |
SHA-256: 0761a3ab9a7758cdcd4096adc3c5e9edc5aa83218302f777672c0ab3c55c14d8 |
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font_02_sfnt_off00013244.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13244 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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