MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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 http://sungwoneng.com/upfile_editor/2021/files/xemizobirivavowipasam.pdf In PDF document text
- http://giaodantanthaison.com/Images_upload/files/lejezinetapilalew.pdfIn PDF document text
- https://tkbhanna.com/ckfinder/userfiles/files/9836181086.pdfIn PDF document text
- https://www.larche-de-jules.fr/ckfinder/userfiles/files/13594311761.pdfIn PDF document text
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e63ac187d9---fasovomakowixirepomusoraf.pdfIn PDF document text
- https://iieng.org/editor/ckfinder/userfiles/files/59893902807.pdfIn PDF document text
- https://classconnbio.com/img-jacson/files/bulebobiwesomovabobejepor.pdfIn PDF document text
- http://ledins.lv/cms/file/8322225209.pdfIn PDF document text
- https://faresaldabbous.com/uploads/file/8639704730.pdfIn PDF document text
- http://bularz-auto.pl/images/userfiles/file/komesitedabakuvu.pdfIn PDF document text
- http://fskyok.com/uploadfile/files/24793417791.pdfIn PDF document text
- http://zamdq.com/filespath/files/20210903012326.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c9763e73e3---12742414176.pdfIn PDF document text
- http://bestapp4u.com/admin/uploadedfiles/file/45352120078.pdfIn PDF document text
- https://pieseautocomenzi.ro/userfiles/file/7237576801.pdfIn PDF document text
- http://esistore.com/userfiles/file/lolulage.pdfIn PDF document text
- https://terminal.hr/userfiles/file/tusosud.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148216f83817---66477454617.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613138d7267d6---12704744733.pdfIn PDF document text
- https://limsurdua.com/contents/files/3217707739.pdfIn PDF document text
- https://holcom-wd.com/webroot/img/files/71490993551.pdfIn PDF document text
- http://bud-drog.pl/userfiles/file/fufumasanena.pdfIn PDF document text
- http://ud2-140.com/files/tuwisofisifesojizi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=delete+multiple+apps+at+once+androidPDF 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_off0000ae30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE30 | 10776 bytes |
SHA-256: 247117ed611d90177065b8083b6bb2307a79cd0985b2e0afbb63e451837bbd49 |
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font_01_sfnt_off0000c6f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6F0 | 14620 bytes |
SHA-256: c8fe8969bce819ed7917cb1ea7891d367882c390823e8df79d448f4ed01670fd |
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font_02_sfnt_off0000ebc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBC1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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