MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF was flagged by multiple heuristics as a link farm, containing numerous external URLs pointing to potentially malicious domains. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. While no scripts were extracted, the primary attack pattern involves luring users to external sites via the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://kuzutuzo.ru/strik?utm_term=what+is+the+meaning+of+uncle+sam PDF link annotation
- http://jisutuxoxaza.medianewsonline.com/62528932380.pdfIn PDF document text
- http://rexonina.medianewsonline.com/atkins_de_paula_physical_chemistry_10e.pdfIn PDF document text
- http://vipimuxatomefi.medianewsonline.com/adrenalina_injetvel_bula.pdfIn PDF document text
- http://dadevizevarek.scienceontheweb.net/8535359081.pdfIn PDF document text
- http://jofipifemu.medianewsonline.com/xufogagodogapolopadig.pdfIn PDF document text
- https://cdn.sqhk.co/xenivoronizu/goxigEZ/my_little_pony_human_comic_deviantart.pdfIn PDF document text
- http://fanuvazav.scienceontheweb.net/arabic_to_english_converter_online.pdfIn PDF document text
- http://bupitubegedew.getenjoyment.net/cost_accounting_notes_for_b._com.pdfIn PDF document text
- https://cdn.sqhk.co/bokirebi/ghgjeKX/valipezuna.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://18b09f4e-de4d-4c1b-9fe6-be55c63b1c00.filesusr.com/ugd/cd81e9_5757553bc3de42e58633751de60ecd3c.pdf?index=trueIn PDF document text
- https://9f53eded-325d-4e02-8430-7c09bd872488.filesusr.com/ugd/e04405_67b90ff76b284a49b6c1ab3abafb17f8.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xukirizugukugi/mmana-gal_basic.pdfIn PDF document text
- https://5c9c3928-af7d-4195-9e43-9647d7263c15.filesusr.com/ugd/508998_b63c281e924d40afb970cbf6057a84a0.pdf?index=trueIn PDF document text
- https://d920bd67-dfaf-4c99-85b0-fcb8118dfb91.filesusr.com/ugd/383849_7983741522ad4ed9a61102d78a0ad2d5.pdf?index=trueIn PDF document text
- https://45b0b119-5f8c-43e7-b437-4e12d17c1c81.filesusr.com/ugd/3826db_545e6e1d7b08464a961e25676d7131c3.pdf?index=trueIn PDF document text
- https://9d76d0c6-5807-43ac-a2ba-7b4112d1a20a.filesusr.com/ugd/5cd33b_f285d6a4922f4150b3fb5ee76bc41a7f.pdf?index=trueIn PDF document text
- https://b9a4c3d6-4ccf-4d04-9b0f-c2e9c357e15d.filesusr.com/ugd/e5cbe5_bfb16ba7a9f8462a8e7572e149dbd66a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sepawi/descriptive_essay_about_person_you_admire.pdfIn PDF document text
- http://lelikerakovet.atwebpages.com/lemomijijadetiwu.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_off0000f4d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D5 | 5212 bytes |
SHA-256: 88bb4899a2e95063f1fdb8684830ae323f5c99443c85b821beab9e15f45cdef4 |
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font_01_sfnt_off00010683.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10683 | 12760 bytes |
SHA-256: f4a156a009303b1cc2aeee4ad61de3daed53fcf722c7c309a97e2ef145c82ef5 |
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