MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, indicating it likely serves as a phishing or malware distribution lure. The document contains a link farm pointing to various external PDF files, with one URL specifically identified as a malicious redirector. The presence of numerous links suggests an attempt to obscure the final malicious destination or to distribute a payload through a chain of redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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://traffmen.ru/strik?utm_term=libro+de+enfermeria+nic+descargar+gr In PDF document text
- https://cdn-cms.f-static.net/uploads/4375522/normal_5f8bae44b273e.pdfIn PDF document text
- https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/vabiriwizigefunovi.pdfIn PDF document text
- https://rarowovi.weebly.com/uploads/1/3/4/6/134664267/2228486.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416659/normal_5f97c5fe3f4b4.pdfIn PDF document text
- https://rupunapu.weebly.com/uploads/1/3/4/3/134354814/vuruxo-mitizanomot-bolivas.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413735/normal_5f99f4f342a83.pdfIn PDF document text
- https://nabesoke.weebly.com/uploads/1/3/4/0/134042749/9542900.pdfIn PDF document text
- https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/wozaj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391602/normal_5f9050d4d90f6.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/ff412b87-35a4-4c74-b6f0-fcdb415cd631/82759546616.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0408ff1a-5921-41db-8482-b94179c0cf10/56127934696.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31eff2d2-fcd7-42b8-abe2-6def1cbc07ce/subupo.pdfIn PDF document text
- https://s3.amazonaws.com/ladojenefe/75161338152.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/68fe340a-54f1-4fe2-82c6-6a4189f0e208/gububobiwefepajanek.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010b17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B17 | 5388 bytes |
SHA-256: 67b85231ad7610f144202091023e64375dd9c0291b0ac7193f83ebcaed7baff5 |
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font_01_sfnt_off00011d51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D51 | 3204 bytes |
SHA-256: fa064ff4df8e5df3fbdf1b9b7c910a7f79b9eacc7ad7a32f2806c076235219c2 |
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font_02_sfnt_off00012a18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A18 | 11732 bytes |
SHA-256: d838c34a362a05e20c62916356647a3181278d682d2bf75f810fc61246585d19 |
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font_03_sfnt_off00014f35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F35 | 16128 bytes |
SHA-256: 87858e0160fdc663af7362e2c123a932a30bf342626b15f8f4c0a2a4d0f5d7ce |
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