MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised websites or disposable hosting, suggesting a link farm or redirection mechanism. The PDF structure and embedded content are consistent with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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://istanajpdua.com/contents//files/viropenupopira.pdf In PDF document text
- http://www.parkwaytransplant.com/media_upload/upload/files/viboduvipetaribazosir.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/ragopisanugaja.pdfIn PDF document text
- http://xn--dlek-5qa.com/admin/UserFiles/file/fiwezidixekevinek.pdfIn PDF document text
- http://huiking.cn/uploads/file/130451474651.pdfIn PDF document text
- http://csc-021.com/userfiles/file/20210624151142_5jw01l.pdfIn PDF document text
- http://ksklinika.ru/ckfinder/userfiles/files/82644622338.pdfIn PDF document text
- https://handientu.vn/userfiles/file/punutudebigowivowikodob.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/864d958202ef97d2b2b86a2ab73b904b/dugejolitanederosapete.pdfIn PDF document text
- http://sourceit.ke/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/84962530898.pdfIn PDF document text
- http://www.videocopilot.net/assets/public/ckfinder/userfiles/files/18776104776.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2c498c708f---dewukodisorupi.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/nirokovi.pdfIn PDF document text
- https://egyiksem.hu/uploads/file/30952557314.pdfIn PDF document text
- http://hhtaitung.com/CKEdit/upload/files/85223479993.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c903e7e00b---59951513319.pdfIn PDF document text
- http://tremonttemplemacon.com/clients/862779/File/burujutezawawojijun.pdfIn PDF document text
- http://ahdongjiu.com/upload_fck/file/2021-8-17/20210817090114747164.pdfIn PDF document text
- http://sotel-perm.ru/site/file/xogezamikivitof.pdfIn PDF document text
- http://salkim.com/userfiles/file/fopenigudodologade.pdfIn PDF document text
- https://slaterlighting.com/wp-content/plugins/super-forms/uploads/php/files/ba6a2bc938c69ec08674d7e0da38308c/47828706783.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=lab+and+golden+retriever+mix+puppies+for+salePDF link annotation
- 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_off0000eae4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAE4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000102fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102FB | 11204 bytes |
SHA-256: 200e58f5f2c9116da77e314d44fde4bc06a6d5a24bfd59b455483574407aade1 |
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font_02_sfnt_off00011cca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CCA | 17924 bytes |
SHA-256: feb73a7663f3bb9e953453992614b85641fe17fb96e0eb67253b6aefc1fa13d5 |
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