MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded URLs, with a primary one pointing to 'nipisod.ru', suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for numerous links, reinforcing the malicious intent. The ML classifier and ClamAV detection strongly indicate this PDF is malicious, likely serving as a lure to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nipisod.ru/award?keyword=search+inside+a+pdf+file PDF link annotation
- https://cdn-cms.f-static.net/uploads/4449419/normal_6014c2d9450f4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389376/normal_6032f51a1d95d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416671/normal_5fefdfe782bd6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481527/normal_60472a661390e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451556/normal_6017615112ff3.pdfIn PDF document text
- https://zebigogax.weebly.com/uploads/1/3/4/4/134459641/ff0d24b9.pdfIn PDF document text
- http://sodahq.club/casio_fx-991es_plus_scientific_calculator_appgrol9.pdfIn PDF document text
- http://coins24h.com/dutuko4ceu.pdfIn PDF document text
- https://jagusidenoz.weebly.com/uploads/1/3/4/9/134902343/kegokikufejeb_xesavubod_zebajom_xujunozegevofe.pdfIn PDF document text
- https://jefilixepiras.weebly.com/uploads/1/3/2/6/132681342/9410586.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427811/normal_5fcf35983e264.pdfIn PDF document text
- http://copyrightshelpscenters.com/aqa_a_level_biology_textbook_year_1_and_21pplj.pdfIn PDF document text
- https://maladebo.weebly.com/uploads/1/3/4/3/134305387/632c96d03bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480584/normal_6055197b399ab.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409238/normal_5fffb672d7c16.pdfIn PDF document text
- http://goodxday.xyz/netgear_gs108lp_gigabit_poe_switchozgr4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409627/normal_5fd341175e190.pdfIn PDF document text
- http://idealica-italiaoficial.site/7006471305169jdv.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://4694dce0-4d1e-4c77-b4da-d1f025f82355.filesusr.com/ugd/fb332b_93cebe6aba51451f877aaed572a5951a.pdf?index=trueIn PDF document text
- http://ranokevizo.rf.gd/blue_eyes_dj_song_mobilekida.pdfIn PDF document text
- http://gedemuzufo.epizy.com/snow_white_with_the_red_hair_season_2_episode_2_english_dub_youtube.pdfIn PDF document text
- https://6d1a2d78-ebd2-4140-94a0-411197be5b5f.filesusr.com/ugd/88ff89_78e2fc3184884f63aeb15f3d1ead102d.pdf?index=trueIn PDF document text
- https://99b08629-27b2-41dd-83a1-938dc2ca35bd.filesusr.com/ugd/067ecb_7861d800efc442769e05e8399fe3a6fe.pdf?index=trueIn PDF document text
- https://30d6ba4c-d201-4e26-8f31-a0e059b28788.filesusr.com/ugd/f9b8bb_2716669d27ae4166bf58a5c9079676f2.pdf?index=trueIn 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_off0000ec50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC50 | 5344 bytes |
SHA-256: 0cd993162f9e602573ba07a99ddc93f8b2f806637d94b767f0c5d73470f01740 |
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font_01_sfnt_off0000fe77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE77 | 10852 bytes |
SHA-256: 56172f2370d005a92665b407de4fdb24a32dbc3e9d12ccff2aa5b2d376a7d1cc |
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