MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded URL 'https://resalured.ru/strik?utm_term=feistel+cipher+structure+decryption' is a primary indicator of the malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://resalured.ru/strik?utm_term=feistel+cipher+structure+decryption PDF link annotation
- http://fuxisileza.mywebcommunity.org/togemomugezo.pdfIn PDF document text
- https://dudobafileziv.weebly.com/uploads/1/3/5/3/135331993/3483954.pdfIn PDF document text
- https://sopazavevorud.weebly.com/uploads/1/3/4/3/134370644/nabepa_guzifelibabek_varidiru_podolowifapenow.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418171/normal_603238c4d1e72.pdfIn PDF document text
- https://lafotavesa.weebly.com/uploads/1/3/4/6/134633764/2b36a.pdfIn PDF document text
- https://gofadoden.weebly.com/uploads/1/3/4/6/134615513/eb8b24045cb358.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427273/normal_5fed775c5effd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366639/normal_5ff980e19bdcc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489843/normal_605668ea56bfd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450719/normal_603575180a933.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393370/normal_60036019504fb.pdfIn PDF document text
- https://nimefoxigobaki.weebly.com/uploads/1/3/4/8/134847293/vipabevuwe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476420/normal_605987ef4b815.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://3c86e5df-9a55-47dd-9d5b-c207b25ec6cd.filesusr.com/ugd/72bf36_aa4f67e23be7411085026978ec15883a.pdf?index=trueIn PDF document text
- https://cbb9655c-b60d-4095-8c1c-bb5f9a2903c5.filesusr.com/ugd/4dd980_5d29635830d243ee82c0d96266f42ef1.pdf?index=trueIn PDF document text
- http://parubixus.rf.gd/what_games_are_on_xbox_one_atari_flashback_vol_2.pdfIn PDF document text
- http://rolaxaja.rf.gd/kuzivuw.pdfIn PDF document text
- http://sazebufaz.atwebpages.com/mesexoj.pdfIn PDF document text
- https://6f0a1f77-3195-4c90-aae7-8e5805bb56bd.filesusr.com/ugd/f94fd0_f35c15bc9e0a4f1db21743c8a7d37537.pdf?index=trueIn PDF document text
- http://zewadomi.myartsonline.com/66989976631.pdfIn PDF document text
- https://8f20b4bd-83f7-4a55-8c6f-e9501e2e061c.filesusr.com/ugd/c1c462_c8427cfd41614d26878f4ce39a71e83e.pdf?index=trueIn PDF document text
- https://528a8416-53f4-4693-bcf0-540471887af1.filesusr.com/ugd/c3aa89_c23cbe4ddfbc4f1897a8cd9ca186f072.pdf?index=trueIn PDF document text
- http://losotejusegiso.rf.gd/wimpy_kid_film_cast.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_off0000f684.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF684 | 2900 bytes |
SHA-256: a28fcc4ba65d8171a55e8b87d646ac5d1dd213f66ab2b0026fd39e5ca5d32d1a |
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font_01_sfnt_off000100c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100C6 | 5008 bytes |
SHA-256: 04a9112c1b71617247d6651352c96bdd92ee51a4ed0b988963553154992bf202 |
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font_02_sfnt_off000111d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111D4 | 10772 bytes |
SHA-256: b5f5b1170e734774ab93bc8c76fd6a65cf9fd58e1380aa6347f0693349cb1fef |
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