MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of external links, a technique often used in SEO link farms to manipulate search engine rankings or distribute malicious content. The embedded URL `https://ponafet.ru/strik?utm_term=mht+cet+2015+question+paper+with+solution+pdf+download` suggests a lure related to exam papers, while the PDF itself is flagged by ClamAV as `Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0`. The ML classifier also strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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 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://ponafet.ru/strik?utm_term=mht+cet+2015+question+paper+with+solution+pdf+download PDF link annotation
- https://cdn-cms.f-static.net/uploads/4403816/normal_6037bf1916ccf.pdfIn PDF document text
- https://sufosuzupunu.weebly.com/uploads/1/3/1/3/131379650/zijudepogesok_rexenagipen_zoginijobe_dezanotirubomeb.pdfIn PDF document text
- https://liletalezawo.weebly.com/uploads/1/3/4/5/134591830/jinumedobumiv.pdfIn PDF document text
- https://s3.amazonaws.com/gazijewevan/33201877357.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417535/normal_5fd64bcb5d34f.pdfIn PDF document text
- https://pazolumaf.weebly.com/uploads/1/3/4/3/134356568/jitapixuxa-varaxa.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403820/normal_5feb5f29eaa91.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367631/normal_606cdccbc6fff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465024/normal_604ddc291c971.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421966/normal_5fda4b4b922bc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427544/normal_606b503e52ba2.pdfIn PDF document text
- https://labaveboto.weebly.com/uploads/1/3/4/6/134611097/gikesebaxar-sabegofiju-mijolawizore-foxofolewiza.pdfIn PDF document text
- https://s3.amazonaws.com/nerugiraxura/wakelozapedagowede.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474222/normal_60222b4458b8d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389394/normal_60390d5504ba7.pdfIn PDF document text
- https://juvedolukojubis.weebly.com/uploads/1/3/2/6/132682904/womavamuwakejafi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://uploads.strikinglycdn.com/files/b2fd4596-da3d-4c08-a923-c9a5273efa69/landice_treadmill_safety_key_replacement.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2e3855dc-b22b-4be9-92c3-386a3620aa51/stihl_fs_56_rc_wont_start.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eacc6565-a07f-4711-b2b5-612c2c10fd51/noughts_and_crosses_novel_summary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9649198d-b981-4c77-9a72-ac4cf69c7d0f/39677797693.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5bab73be-2669-4353-bb08-454fea1062b0/cuanto_son_100_gr_de_mantequilla_en_cucharadas.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/801bfccf-7e3c-4564-bdae-9202a525bcc1/wudovidu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45d27e62-c8fa-423e-aee5-cc3b5344d4a5/printable_bunco_score_sheets.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_off0000f6fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6FB | 5916 bytes |
SHA-256: 40d357ea45896294554d7339cbaf6358ad01774e01a82049731e4ecfbcb1a57f |
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font_01_sfnt_off00010b46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B46 | 10772 bytes |
SHA-256: e43c20c052a48824f31898c0203c916d80b29422a2543c98712cafad1b15ff35 |
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font_02_sfnt_off00012fc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FC6 | 3224 bytes |
SHA-256: 36587f8a3ed9c194a2327d904e192f3bb49ca9b952979ba816008cea1092c9f1 |
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