MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains embedded JavaScript and a large number of external links, many pointing to disposable hosting or compromised CMS uploads, indicating a likely attempt to redirect users to malicious sites. The presence of embedded JavaScript suggests it may be used to facilitate further malicious actions, such as downloading additional payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://chcial.ru/uplcv?utm_term=tubemate+official+latest+version PDF link annotation
- http://beiwendq.com/data/attachment/file/6532225368.pdfIn PDF document text
- http://haenuri.net/ckupload/files/81618377165.pdfIn PDF document text
- http://xn--z92bzy85x.com/userData/board/file/tuwof.pdfIn PDF document text
- http://a-xian-coat.com/uploads/files/202109131549599305.pdfIn PDF document text
- https://lifetides.ca/cambridge/uploads/files/69190745318.pdfIn PDF document text
- http://rayer.cn/d/files/nabomapelumarawodu.pdfIn PDF document text
- https://ofly.om-digitalsolutions.cn/upload/files/denisif.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614456b30f14a---78341302809.pdfIn PDF document text
- http://americasbestmanassas.com/uploads/files/55344873324.pdfIn PDF document text
- http://spbmedaks.ru/sites/default/files/uploads/nazax.pdfIn PDF document text
- https://ceral.pl/ceral/pliki/file/zinutat.pdfIn PDF document text
- http://agama-rc.com/upload/files/57293189432.pdfIn PDF document text
- https://simorgh.it/uploads/file/mibozupunefonifowufapotu.pdfIn PDF document text
- https://gameadvisers.com/js/new/fckeditor/userfiles/file/vamikibibiw.pdfIn PDF document text
- http://artattack-concerts.de/files/file/jalisajabok.pdfIn PDF document text
- http://kondicionery-elektrostal.ru/upload_picture/file/9160660518.pdfIn PDF document text
- http://atsolution.org/userfiles/file/20210911031522987997437.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/54834f965bfc7ec7848ff48e8d19b021/xulibodatupunup.pdfIn PDF document text
- http://praxis-greve-polley.de/web/editor/files/nejokeguwewevu.pdfIn PDF document text
- https://www.poolsrus.com.au/application/third_party/ckfinder/userfiles/files/fetew.pdfIn PDF document text
- http://appartementslisa.it/an3_Uploads/file/jerudefumil.pdfIn PDF document text
- https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/daxulalatozomivuvin.pdfIn PDF document text
- http://xn--djr00fsyfv0o5qgy9u.com/filespath/files/20210918092302.pdfIn PDF document text
- http://shendaoguoji.com/data/attachment/file/5489858630.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/oohh3fdvei3373b9om782ftsu2/pukifekurawof.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_off0000e07a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE07A | 19140 bytes |
SHA-256: d4a995d807661e4027571a63a7da12dbe1142da2145539c76c67ce06ecb621ed |
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font_01_sfnt_off0001112f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1112F | 10768 bytes |
SHA-256: bcb5968a3db2672a4c91e923ae284bc29a277fd5eb7914860129ac0a98687554 |
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font_02_sfnt_off00012a01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A01 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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