MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file contains embedded JavaScript and a link farm pointing to multiple compromised WordPress sites. These sites host further PDF files, suggesting a multi-stage attack. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or distributing a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bf2a826fe---bumasawubowalob.pdf In PDF document text
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/154323b9dd146cf63ed78153b9c6d904/nojuvu.pdfIn PDF document text
- https://mrdak.cc/uploadfile/files/vubakuzipejazejeliv.pdfIn PDF document text
- http://www.aadhar-interior.com/userfiles/file/14662048238.pdfIn PDF document text
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/573f4ede404090edabd3337b20011757/69325632043.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210804023142113037450.pdfIn PDF document text
- https://upaspor.com/resimler/files/41344138003.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d993b550c17---fuxibelonapebiputirajos.pdfIn PDF document text
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/4e686f2587dddb906fe848dea7434416/nesanilalekimazepuxinob.pdfIn PDF document text
- http://webinaris.eu/ckfinder/userfiles/publics/files/nubazoseneliraputatikatid.pdfIn PDF document text
- http://ttworld.hu/uploads/content_files/files/9498721747.pdfIn PDF document text
- http://floridainvestment.cz/files/file/solefikuwu.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/40964983860b8a83007417.pdfIn PDF document text
- http://tipkeo.com/js/ckfinder/userfiles/files/26695160035.pdfIn PDF document text
- http://weberstellen.ch/userfiles/file/57084586285.pdfIn PDF document text
- http://monroehighwildcats.com/clients/40160/File/5105396207.pdfIn PDF document text
- http://studiopetrilli.it/userfiles/files/kupakin.pdfIn PDF document text
- http://ddaengshop.com/ckupload/files/semedidewerubifafuz.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/zemumidekorezeduteb.pdfIn PDF document text
- http://www.eventoptik.de/upload/files/retumepopuropunipo.pdfIn PDF document text
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/a4cea8homlvd1vim59d8cf6vf2/ripej.pdfIn PDF document text
- http://szentdorottyapatika.hu/files/22967123695.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=genworth+mortgage+income+calculation+worksheetPDF 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_off0000cb21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB21 | 17060 bytes |
SHA-256: 1080bfbb3df1767f1a8012758c8d2e1a41c924bbd35bd2b788a0dd0f5e45e0c0 |
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font_01_sfnt_off0000f75b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF75B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F72 | 10992 bytes |
SHA-256: c5bb605ceee639048dcce598e87576cbedfc887b3a75e66a4fb0987154bac6dc |
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