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 a machine learning classifier, indicating a high likelihood of malicious intent. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam, where the user is prompted to call a number. The presence of embedded JavaScript, though not fully analyzed due to obfuscation, further supports the execution of malicious code, likely to facilitate the scam or download additional payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://queure.ru/uplcv?utm_term=best+android+app+to+download+tv+series PDF link annotation
- http://santehnika34.ru/images/file/mopodotutimewanakigeka.pdfIn PDF document text
- https://www.peltonfell.org.uk/ckfinder/userfiles/files/xezanugenuwuguluduv.pdfIn PDF document text
- http://meandnetworking.com/ckfinder/userfiles/files/kupemunifaloroji.pdfIn PDF document text
- http://gowowdeli.com/uploads/files/80019122214.pdfIn PDF document text
- http://fireprovietnam.net/luutru/files/jubojo.pdfIn PDF document text
- http://fuhua.tumujike.com/assets/upload/files/202109080735118655.pdfIn PDF document text
- https://aadharshilaschool.org/userfiles/file/19856324717.pdfIn PDF document text
- https://www.frontieregypt.com/sites/all/libraries/ckfinder/userfiles/files/67615063624.pdfIn PDF document text
- https://sambelteri.com/contents/files/61096847997.pdfIn PDF document text
- http://blow-w124.com/js/upload/files/lijir.pdfIn PDF document text
- http://gorisum.net/fckeditor/upload_file/file/guzamexogoved.pdfIn PDF document text
- https://cengilli.com/icerik_images/file/62968831170.pdfIn PDF document text
- https://www.casestilistas.es/ckfinder/userfiles/files/1432600550.pdfIn PDF document text
- http://24hnbc.com/assets/ckfinder/core/connector/php/uploads/files/negemenezovitakexiwajemim.pdfIn PDF document text
- http://ever-pioneer.com/upload/files/43735446319.pdfIn PDF document text
- http://speckrepeg.by/UserFiles/files/zegigibedewobazorijeto.pdfIn PDF document text
- http://ewtch.com/upload/files/zujojowawepu.pdfIn PDF document text
- https://mingyi-lock.com/data/file/userfiles/files/ribapowi.pdfIn PDF document text
- http://ndt-ultratech.com/files/77871832096.pdfIn PDF document text
- http://dothi.info/images/files/94899551793.pdfIn PDF document text
- http://festacreativita.org/userfiles/file/fupivoj.pdfIn PDF document text
- https://www.karelo.com/uploads/File/44765626438.pdfIn PDF document text
- https://emmaushuis.org/pages/95791948115.pdfIn PDF document text
- http://swotaweb.com/img/upload/file/56516572110.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_off0000b68f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB68F | 10592 bytes |
SHA-256: 0d7b131f494663fe71c9f7f2b420fa439574c3aa11b60852ae9065fdba5dff90 |
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font_01_sfnt_off0000ceeb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEEB | 16664 bytes |
SHA-256: d3996b267ae7457eb172d9ad8ff3a65eb63d04d221f0af6543b4ae256572f87f |
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font_02_sfnt_off0000f938.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF938 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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