MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URLs and the heuristic findings of a 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' point to a campaign that uses SEO-optimized PDFs to drive traffic to malicious sites.
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://mezovuduw.ru/strik?utm_term=mbti+compatibility+percentage PDF link annotation
- https://sibibogug.weebly.com/uploads/1/3/5/9/135990875/3524890.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404740/normal_601b7c6b5f76d.pdfIn PDF document text
- https://revijokatise.weebly.com/uploads/1/3/3/9/133999222/786a2cf3f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463277/normal_5fd9c84ca9939.pdfIn PDF document text
- https://neverazu.weebly.com/uploads/1/3/4/9/134901342/4018a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://21c505bb-01ca-4817-a549-4ed1ebba5040.filesusr.com/ugd/7d7105_e8bd8c0b1cdd4222bcd318b8883fe6f7.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/483299c1-befb-4ab6-8887-c00901084749/83519449049.pdfIn PDF document text
- https://13adc596-845f-4f4a-b539-e2c04a0a4b5a.filesusr.com/ugd/6e2da7_8cf169decf504fd0b26a00a9f2167f30.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d7bd313d-5c1f-44ce-a062-45786ebc214d/fuduf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2f116929-c54b-4edd-9e3a-c6f4c17f3a63/what_is_the_difference_between_the_old_and_new_testament.pdfIn PDF document text
- https://99470c7d-c692-4648-a7b8-36ea19db2883.filesusr.com/ugd/ab059d_24f5025523124a7b953e339c21c0b8b5.pdf?index=trueIn PDF document text
- https://0115c081-d8bc-4983-a705-81db93bf1442.filesusr.com/ugd/990402_c5c6e833cf06420191d581a3db0da045.pdf?index=trueIn PDF document text
- https://856cb5e6-6c81-45ce-9604-b57907a15cd2.filesusr.com/ugd/cc3ca9_122f676574384728992403f5f11217d8.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/275afc17-79ff-4dc7-bd0a-229048e2ea22/tuvolavusak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7bc31215-ac1a-442a-8a20-331d106a041d/how_do_i_reset_my_ao_smith_electric_water_heater.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eda9e6ec-68fb-4c4c-a0f0-d04bc78bc019/11046269331.pdfIn PDF document text
- https://6ba8113a-99dc-4618-97bf-d7180f10ff72.filesusr.com/ugd/b6edda_f7ba27d421b545ac9188130a502f021f.pdf?index=trueIn PDF document text
- https://b54663a3-ff9d-4122-b75c-69b71428c9b0.filesusr.com/ugd/cfa91a_64fa608f8a6b4890ae9b082faa3462f0.pdf?index=trueIn PDF document text
- https://4590046d-f0a9-4171-b8a0-56ff8c1fe63c.filesusr.com/ugd/0bfb20_29918d3a73bf4da8b759a76461dd1035.pdf?index=trueIn PDF document text
- https://be9ca920-c372-4566-b00d-544f92814f3b.filesusr.com/ugd/f0c5a9_6a4c87f7a1d840d2ae63cf541eec0113.pdf?index=trueIn 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_off0000ed24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED24 | 5320 bytes |
SHA-256: cfb83c4f63d455e3084ca95895cef04b94f772e80c2710f4481a35e6aab29c4f |
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font_01_sfnt_off0000ff3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF3E | 10492 bytes |
SHA-256: 5b81c9f11772fe7230500ab7578d16c6b281426e462bb099a8ca8fd0cf58550b |
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