MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as a malicious PDF by ClamAV and an ML classifier. Heuristics indicate it functions as a link farm, embedding numerous URLs, with one prominent URL being https://maypoin.ru/123?utm_term=vhl+descubre+1+answers. The PDF structure and embedded links suggest a phishing or credential harvesting attempt, aligning with the Spearphishing Attachment technique. No scripts were extracted, but the PDF's nature implies it's intended to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 5
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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 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://maypoin.ru/123?utm_term=vhl+descubre+1+answers PDF link annotation
- https://static.s123-cdn-static-d.com/uploads/4473047/normal_60b62282cf47f.pdfIn PDF document text
- https://kiburosipaso.weebly.com/uploads/1/3/4/6/134601321/3824796.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4501634/normal_60b1e40c8c03c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4456116/normal_5ffe9a38b6e42.pdfIn PDF document text
- https://jaxapinaxet.weebly.com/uploads/1/3/1/4/131406361/3411952.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4455670/normal_604691df5d545.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479439/normal_60116ecf15398.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4444371/normal_5fe2e6da32a68.pdfIn PDF document text
- https://suzazega.weebly.com/uploads/1/3/4/4/134476369/vizavilur.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486351/normal_604e367479a04.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495240/normal_6068264087647.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480744/normal_60135c4168a7a.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
- http://morabef.pbworks.com/f/how_to_save_as_x-1a_in_photoshop.pdfIn PDF document text
- http://zeladejan.pbworks.com/f/what_is_the_romeo_and_juliet_law_in_arizona.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a22d1f89-2014-4cb0-b067-e9750f564c52/hp_officejet_5610_all_in_one_toner.pdfIn PDF document text
- http://zewalar.pbworks.com/f/90239644931.pdfIn PDF document text
- http://viluxese.pbworks.com/w/file/fetch/144415620/48180074782.pdfIn PDF document text
- http://zewalar.pbworks.com/f/rivezikige.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/016692b5-75b6-4452-ad8f-86d432bd9549/samuzuf.pdfIn PDF document text
- http://jifesepapo.pbworks.com/w/file/fetch/144450858/clicker_heroes_import_codes_mobile.pdfIn PDF document text
- http://wuwazilizos.pbworks.com/f/automatic_transmission_troubleshooting.pdfIn PDF document text
- http://muxopal.pbworks.com/w/file/fetch/144439608/gakusen_toshi_asterisk_light_novel_volume_16.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_off0000ee76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE76 | 4920 bytes |
SHA-256: b3f4de2a4b7c5740f618387331b0b11ac7cd562a152f2db634619182428cbc59 |
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font_01_sfnt_off0000ff2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF2B | 10332 bytes |
SHA-256: 3c6fbf21333897c9fdf24d3f147e775ccf76d56aa9ef58df9872989eaa14cab4 |
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font_02_sfnt_off00012253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12253 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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