MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document exhibits characteristics of a phishing attack, leveraging a fake invoice lure to entice users to click on embedded malicious links. The presence of embedded JavaScript and multiple links pointing to compromised WordPress upload storage suggests an attempt to download further malicious content or redirect users to phishing sites. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9858
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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://coretry.ru/uplcv?utm_term=what+is+an+investigative+report PDF link annotation
- http://toyotarent.tw/FileData/ckfinder/files/20210619_2E08F600F8A14656.pdfIn PDF document text
- http://dolphinkorea.com/files/files/pawixinafabamipalosumemot.pdfIn PDF document text
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/32b47a12319a7b161d7bb3d8f2f68d85/60767425135.pdfIn PDF document text
- https://asiquim.com/ckfinder/userfiles/files/bawetuwivigidazide.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3d3dda07b0aa447150d7c5e74f6e9ff5/marejumotat.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/30595406345.pdfIn PDF document text
- http://amandamaitland.com/images/file/98564043709.pdfIn PDF document text
- http://kurier48.pl/files/userfiles/file/8690271516.pdfIn PDF document text
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c66c9e26d7a---bowojiduleniritid.pdfIn PDF document text
- http://daieimotors.com/js/upload/files/37659777603.pdfIn PDF document text
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/fovozeledexe.pdfIn PDF document text
- http://wjcopy.com/upload/files/11311190911.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce39a33363a---xofipudil.pdfIn PDF document text
- https://acavacecio.it/userfiles/files/gazajowesikenowufezubiwu.pdfIn PDF document text
- http://arcstema.com/userfiles/files/74527494312.pdfIn PDF document text
- http://posekatzahradu.cz/files/file/90924017733.pdfIn PDF document text
- http://gdlianyu.com/uploadfiles/file/7071258792.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/jepevimupigonigivube.pdfIn PDF document text
- https://speeddating.lt/speeddating/ckfinder/userfiles/files/72126112731.pdfIn PDF document text
- http://kondicionery-vidnoe.ru/upload_picture/file/wijotap.pdfIn PDF document text
- http://ellenia3.eu/userfiles/files/3090154649.pdfIn PDF document text
- http://sitoad.com/bbqjoekey/files/202106070911526018.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160730e33269ce---98956241031.pdfIn PDF document text
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/fb29ff1cb71e6a7db004e19f130dc156/98281890692.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_off00034c50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x34C50 | 18648 bytes |
SHA-256: 6e756cf79253e9675cb8702f3fadea60b1338a16fb5fc8523bbf33de27ec8196 |
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font_01_sfnt_off00037d93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x37D93 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000395aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x395AA | 10544 bytes |
SHA-256: 3252cf976b55282be06fd5e00d080487f6b5565159284cf7f2eacf0e89a8586d |
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