MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with a high-risk heuristic identifying it as a link farm on disposable hosting. The primary malicious URL identified is https://irlanc.ru/square?utm_term=you+never+cease+to+impress+me+meaning, which is likely used for phishing or to serve further malicious content. No scripts were extracted, but the PDF structure and URL patterns suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 5
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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 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://irlanc.ru/square?utm_term=you+never+cease+to+impress+me+meaning
- https://cdn-cms.f-static.net/uploads/4376088/normal_60bc47af4f90c.pdf
- https://static.s123-cdn-static-d.com/uploads/4485943/normal_60b1d5fdcb4ea.pdf
- https://wutiduxa.weebly.com/uploads/1/3/5/3/135300785/wunibogote.pdf
- https://cdn-cms.f-static.net/uploads/4392857/normal_6051b0f341b25.pdf
- https://cdn-cms.f-static.net/uploads/4384835/normal_5fe84f4a50e1b.pdf
- https://jajufuwupu.weebly.com/uploads/1/3/1/1/131163717/9956508.pdf
- https://wupixizot.weebly.com/uploads/1/3/5/3/135398135/87b8059870.pdf
- https://nolupomesu.weebly.com/uploads/1/3/7/5/137510536/2bc8bd774.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- http://bukafag.pbworks.com/w/file/fetch/144854433/46992370383.pdf
- http://pibadaro.pbworks.com/w/file/fetch/145312314/nitapebiv.pdf
- http://mogulobobis.pbworks.com/f/how_to_get_horses_in_star_stable.pdf
- https://uploads.strikinglycdn.com/files/457644b3-e873-4a95-ad0b-7415f753b511/how_to_charge_air_hogs_car.pdf
- http://negipidini.pbworks.com/w/file/fetch/145022715/backend_java_developer_interview_questions.pdf
- http://febevolojezu.pbworks.com/w/file/fetch/144827487/vopulikejegujar.pdf
- https://uploads.strikinglycdn.com/files/d7fe1a2a-e39b-4fdb-a505-716505203e80/nozazoweveles.pdf
- http://jufugoxula.pbworks.com/w/file/fetch/144622356/plano_de_centro_comercial_autocad.pdf
- http://pudamalulera.pbworks.com/f/31655955451.pdf
- http://larabefejaji.pbworks.com/w/file/fetch/144485763/zusatufililaje.pdf
- https://uploads.strikinglycdn.com/files/8fe48c55-85a9-4487-b474-8162e11ba62c/17209807809.pdf
- https://uploads.strikinglycdn.com/files/4ca1937d-9cc4-4580-8803-d7526025ad93/zoxakobusiwijudogap.pdf
- http://bemulopawed.pbworks.com/f/8_pool_hack_money.pdf
- http://palejemevat.pbworks.com/w/file/fetch/144856062/2000_dt466e_oil_capacity.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e25a.binf439e02f67b741e3ded2fbbeda38e3bd0489f20143a37c3cd900252e7e78f76c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE25A | 5124 bytes |
font_01_sfnt_off0000f3b6.binb8de661f8c007e9c1010409c3b5db8f9b98b9c2cfa06fdffaa2dde1f40c69a40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3B6 | 10112 bytes |
font_02_sfnt_off00011647.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11647 | 4324 bytes |
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