MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple external links, with one pointing to a suspicious domain ('midufefew.ru') that is flagged as an external URI. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for link farms, suggesting a malicious intent to distribute or phish. ClamAV also detected this file as 'Pdf.Phishing.Trojan'. The presence of a 'download button' lure further supports a malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://midufefew.ru/strik?utm_term=twelve+basic+functions+practice PDF link annotation
- https://sanepawoja.weebly.com/uploads/1/3/4/5/134579143/61af0d8d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4487918/normal_5fd3419de2881.pdfIn PDF document text
- http://gejesixave.scienceontheweb.net/california_civil_seismic_building_design.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4488322/normal_5fec4d4772606.pdfIn PDF document text
- http://sozapemogoz.mygamesonline.org/lamudupusomumaw.pdfIn PDF document text
- http://juwoniki.getenjoyment.net/86862891739.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4499942/normal_5fcb486a074ef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481170/normal_5fda717ea980f.pdfIn PDF document text
- https://danawojigu.weebly.com/uploads/1/3/1/4/131407111/mazegevozixeluzux.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463002/normal_6025c6abcce91.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411250/normal_60231920ae309.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4468294/normal_5fe2eba898cb1.pdfIn PDF document text
- https://kixipebirivevex.weebly.com/uploads/1/3/0/7/130739750/molozezeremepekawos.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443809/normal_5fd6149f1416b.pdfIn PDF document text
- https://resusogid.weebly.com/uploads/1/3/5/3/135346187/5307045.pdfIn PDF document text
- https://muvesajaduxu.weebly.com/uploads/1/3/4/0/134012660/6154166a80e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/668639ea-91b8-471b-8e02-9fee6d158b57/3_16_pulgadas_a_cm.pdfIn PDF document text
- http://buzanuziti.myartsonline.com/is_gta_5_going_to_be_on_ps5.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/37738444-1007-4ce8-bbc9-9637d0f9c3fb/figufozopotepudi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/06ec486b-29d1-4c37-9101-23e8915b9863/zuliro.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/30781df0-ea84-487b-bfca-eefa80fbdde6/is_yogurt_in_smoothies_healthy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ff341116-00be-4018-b557-59fd8e3722c3/lulijuzodubiv.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f7c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C4 | 5252 bytes |
SHA-256: b55fc034ce7d89a1587f20f28d94003dac8284837fba5a0d172959bfd43b1309 |
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font_01_sfnt_off000109c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C8 | 10760 bytes |
SHA-256: b67ebe50f041441b66921cb0e39a705f54fefd508dad655b5f6906c0286e41fe |
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font_02_sfnt_off00012ede.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EDE | 16204 bytes |
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
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