MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, identified as a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware. The primary attack pattern involves leveraging a PDF document to host a deceptive link farm, potentially for SEO manipulation or as a distribution vector for malicious content.
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://zajinet.ru/strik?utm_term=mla+online+article+citation+example PDF link annotation
- https://cdn-cms.f-static.net/uploads/4374369/normal_605843be03e02.pdfIn PDF document text
- https://tavimemake.weebly.com/uploads/1/3/7/5/137513296/gufamuten.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426415/normal_5fdb77a4ab935.pdfIn PDF document text
- https://fejoburu.weebly.com/uploads/1/3/0/8/130813906/c07c5.pdfIn PDF document text
- https://lamuwopinu.weebly.com/uploads/1/3/4/6/134632291/4713823.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475729/normal_60386feb55fa0.pdfIn PDF document text
- https://fofonamid.weebly.com/uploads/1/3/4/8/134869219/getepotesawu_vokide_moxebaro_pazidarezuwel.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448743/normal_60163e93e10f8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4494136/normal_5fee72448f720.pdfIn PDF document text
- https://nijeliwawinezim.weebly.com/uploads/1/3/4/4/134497061/niduz-zesaleze-fivojetunuponap.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406501/normal_606ae53a09474.pdfIn PDF document text
- https://bososotozakep.weebly.com/uploads/1/3/1/4/131437593/sedimonumimise.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369907/normal_601b430b15adb.pdfIn PDF document text
- https://jodowofimen.weebly.com/uploads/1/3/5/3/135330599/gamib.pdfIn PDF document text
- https://jazolesapixol.weebly.com/uploads/1/3/1/4/131453041/8872247.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391305/normal_5fd5f42b08ad7.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481065/normal_5ff7d92d35415.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465389/normal_6055ca08f2733.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/0f557fc1-21c3-4495-bbc8-9bf19ce4afce/calculating_acceleration_worksheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/671beb81-3593-4580-8bb8-57edc929bbc5/lisevezowideje.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6366c843-dbbf-476a-bcc3-ce55c676b7f8/pimafufiligowosen.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_off0000fa53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA53 | 4972 bytes |
SHA-256: 7200a21ebbb80828a7dd1f4f039759b0df1be954178d8b12680679e0c61510c1 |
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font_01_sfnt_off00010b3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B3A | 11452 bytes |
SHA-256: 434389fe8db2a6d2aa17677426a3dad6d66b79d961b0432fefe5d0e936011990 |
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