MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a high number of external links, many pointing to disposable hosting services, indicating a link farm or SEO manipulation tactic. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to mimic an invoice or payment request to entice users to click on the embedded links. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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://druttle.ru/strik?utm_term=schedule+c+instructions+codes PDF link annotation
- https://vikilegopufuber.weebly.com/uploads/1/3/4/5/134588451/zewadupidu.pdfIn PDF document text
- https://sibemawiwojaro.weebly.com/uploads/1/3/4/8/134887292/c40e32a.pdfIn PDF document text
- https://jabexigiji.weebly.com/uploads/1/3/2/6/132695602/934972.pdfIn PDF document text
- https://nilijinaxobizag.weebly.com/uploads/1/3/4/3/134356504/nidopurel.pdfIn PDF document text
- https://biluvumilu.weebly.com/uploads/1/3/1/8/131860938/8fc1fd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446158/normal_60076e02aabd7.pdfIn PDF document text
- https://mepopukivar.weebly.com/uploads/1/3/6/0/136083549/552bdc060e1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385853/normal_5fe89cbcf1043.pdfIn PDF document text
- https://sepetumeba.weebly.com/uploads/1/3/4/6/134601334/tafajoje-ralixagilebifu-mowiwufodov-fidakobe.pdfIn PDF document text
- https://ledegukumimajem.weebly.com/uploads/1/3/5/3/135393042/1236432.pdfIn PDF document text
- https://milonotupilo.weebly.com/uploads/1/3/5/3/135347339/3067594.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/9e05601c-f621-4414-9796-9758fa4352f0/envoute_moi_integrale_ekladata.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b89abafd-1174-47a1-9064-5f8185b33eb6/51855114557.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/29bd3800-67d3-47af-9152-ad1d6c8ab54f/tik_tok_dance_songs_playlist_2020_clean.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/19ea4573-6730-4cb6-b739-dd2833505f7a/90497286676.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8e4b0230-411f-4a55-88ae-174b5614c379/97085754718.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b865211-a12b-41c2-acaa-181f8ee3925d/how_to_study_organic_chemistry_fast.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6e743693-278e-41ce-8f46-54f76283cc0f/ejercicios_notacion_cientifica_3_eso_fisica_y_quimica.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_off0000efb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB8 | 4920 bytes |
SHA-256: 3ec1f989725aa23c4d6b78acbbf4802b5e3a36ffc4e55b2c67ab425baf7b4d82 |
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font_01_sfnt_off0001006a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1006A | 10952 bytes |
SHA-256: d9efd974d80bf1ac8165f7b33e2d79b5c72ebe3d6c2563f033d8ce3bf6471494 |
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