MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by a machine learning classifier and ClamAV. It contains a large number of external links, suggesting it functions as a link farm designed to redirect users to potentially malicious websites. The primary heuristic indicates the presence of an external URI pointing to 'jottigo.ru', which is likely part of a phishing or SEO spam campaign.
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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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://jottigo.ru/award?keyword=gastroretentive+drug+delivery+system+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4390663/normal_6015a426a0d45.pdfIn PDF document text
- http://bionatur.space/nosolanaxaxunekosd0mi.pdfIn PDF document text
- https://wuwonerosetopux.weebly.com/uploads/1/3/1/6/131606808/1935407.pdfIn PDF document text
- http://helpcopyright-service.com/602349895339f1wx.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4499979/normal_60372a69226a7.pdfIn PDF document text
- http://podjem2.club/darkest_dungeon_color_of_madness_boss_guider139o.pdfIn PDF document text
- http://jopagozopive.medianewsonline.com/a_level_biology_question_papers.pdfIn PDF document text
- https://guzovadolo.weebly.com/uploads/1/3/1/6/131606502/be85fa984ad6.pdfIn PDF document text
- https://zoguripan.weebly.com/uploads/1/3/1/0/131070442/parepuzaxem-linipedufaxuluk.pdfIn PDF document text
- https://susokeruno.weebly.com/uploads/1/3/4/6/134656617/mepomozijapunekeviga.pdfIn PDF document text
- https://nilanifaken.weebly.com/uploads/1/3/4/7/134702232/xameberagovukitimej.pdfIn PDF document text
- http://bcipreactivaperu.com/falilejakidowosezabnip64.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/271f63d9-0586-4acf-b6e9-5bbf2ad8c29a/wuvubawenefekodidezuza.pdfIn PDF document text
- http://saboveliga.myartsonline.com/xupezolejazofakejebot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2d2a4402-f9e1-49dc-bb42-49279f7d77d8/73820619173.pdfIn PDF document text
- https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_65378708a2454cc498dca591a145a02f.pdf?index=trueIn PDF document text
- https://4eb83289-b313-4542-b68c-79a1d4783db4.filesusr.com/ugd/f6336d_5864e285399e4efa86435b83b9d6a85a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f06ad42e-2d4a-4b16-ae79-0be6015eef23/83899778036.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c0b264a4-08dd-4cab-8695-667be7ad1e10/aprender_ingles_escuchando_audios.pdfIn PDF document text
- https://18b09f4e-de4d-4c1b-9fe6-be55c63b1c00.filesusr.com/ugd/cd81e9_0b3e7077c7d743589bedd71c7f672dae.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/dd2324d0-5a8d-426b-bded-1a7ef6369f57/todarefexarawavet.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_off0001098b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1098B | 5552 bytes |
SHA-256: 2bcd5db6829b9c91f34b3aba65fefcf3ff93db4e1157a8186a7f2059cac26b54 |
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font_01_sfnt_off00011c67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C67 | 10408 bytes |
SHA-256: 7612221564fed40d7d6648a00223b5a6a9cf8ddea2a63388990be52473f9f3e8 |
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