MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and external URIs suggests the document is designed to exploit vulnerabilities or redirect users to malicious sites. The 'SE_CALLBACK_LURE' heuristic specifically points to a callback phishing or tech-support scam pattern, where users are prompted to call a number, likely to extract sensitive information or trick them into further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://medvor.ru/uplcv?utm_term=eng+to+kor PDF link annotation
- http://czminghe.com/upload/files/jajixaxab.pdfIn PDF document text
- http://gajagotour.com/UserFiles/file/gunufinizezazago.pdfIn PDF document text
- https://agroadvanced.com/app/webroot/newsletters/editor/files/89659194580.pdfIn PDF document text
- http://year-c.com/upload_fck/file/2021-9-5/20210905124808566142.pdfIn PDF document text
- http://escrima-rlp.de/userfiles/file/webagasogoporenol.pdfIn PDF document text
- http://przedszkolenisko.pl/userfiles/file/murovujunobevemaditigin.pdfIn PDF document text
- https://ikincielinmak.com/upload/ckfinder/files/6598237582.pdfIn PDF document text
- http://jeanthompson.nl/ckfinder/userfiles/files/wavuxixufuluramodimofube.pdfIn PDF document text
- http://backkwang.com/userData/board/file/70422900094.pdfIn PDF document text
- https://moraure.net/js/ckfinder/userfiles/files/wuxurexozusobokivoxi.pdfIn PDF document text
- https://yifff.se/userfiles/file/96104015036.pdfIn PDF document text
- http://sunnysolutions.it/uploads/assets/file/74431651726.pdfIn PDF document text
- http://scro.ru/pic/file/ziferokovibolir.pdfIn PDF document text
- https://mmeasar.com/mmeasarfiles/file/13368322857.pdfIn PDF document text
- https://andhimazhai.com/images/files/97121675060.pdfIn PDF document text
- http://jobsandhi.com/uploaded_files/userfiles/files/48625367140.pdfIn PDF document text
- https://asesoriagade.com/app/webroot/files/files/56283075604.pdfIn PDF document text
- http://abwessex.com/uploads/files/zenotudugefizotiz.pdfIn PDF document text
- https://dawnraytech.985.tw/data/file/userfiles/files/voxamorasukexepazotunopu.pdfIn PDF document text
- http://aburobocon2019.mnb.mn/uploads/files/67907866930.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/92pjhn32qtff5i5q6po4u45m34/denofepamonusinire.pdfIn PDF document text
- http://chupanhnoithat.vn/upload/files/62332984317.pdfIn PDF document text
- http://zlzljc.com/uploadfile/file///2021090309594814.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://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_off0000ae39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE39 | 16508 bytes |
SHA-256: cea9951cecadb96178b0b4bf356c59db611942ced9902ca48d181e2dec8bb7a9 |
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font_01_sfnt_off0000d7d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7D8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000efee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFEE | 9756 bytes |
SHA-256: 172cd306d9071c4c922d494f71179f44b82aa2ce24aca36f84dabd23ba193258 |
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