MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external URIs, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to deliver a second-stage payload or phish credentials.
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 http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a19b3034b72---75458572623.pdf In PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbb2a89a828---596816735.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3dc1047672---jejefopenaxepov.pdfIn PDF document text
- http://lynxitservices.com/ckfinder/userfiles/files/55548513129.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/r3gn3tpiicigh1s0dq2stft4b2/bavigupupotesa.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/7fe33c7369961baf53d447023a643590/37161069169.pdfIn PDF document text
- http://medicamarsala.it/userfiles/files/28608309702.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/bfqch96jogbvd92v3ihpu9esb7/51466034946.pdfIn PDF document text
- https://alternativecarrepair.com/userfiles/file/xivefifa.pdfIn PDF document text
- https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/fb2obms24htmblgrfd60ktvlh5/11168302611.pdfIn PDF document text
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aef264e25e---55502469656.pdfIn PDF document text
- http://hobbstownis100.com/clients/6/66/66141d04a4341350d76ae3a38785cb5a/File/14283129093.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/da257e3494bf1c3ffc35825754d043e6/36236934281.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/17jts1d9uocnl0kojlf98so2fn/83426832248.pdfIn PDF document text
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/b67e7a0106cdfb079f91c7e08bcc407e/buguwarowepulisedubiduk.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d39a89924f---49085725009.pdfIn PDF document text
- https://armagedonspedycja.pl/files/file/tipimejudipemuvonu.pdfIn PDF document text
- https://thehouseconcert.com/ckfinder/userfiles/files/67759206045.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/ssq1npo01n1rvq6stg4f81poi7/guzipagesarukes.pdfIn PDF document text
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/a96a8ed4c043304be9033f0e4aac0dfb/zizezapowiwojokoro.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/2ba8d0ced1b9777b2bbd48322543dde2/46302462839.pdfIn PDF document text
- http://hzbmsj.net/images/upload/File/zapesowapawisubupa.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160e3b97aae1e7---94919872749.pdfIn PDF document text
- http://w3-japan.com/js/upload/files/83148936985.pdfIn PDF document text
- https://locoffice.ru/userfiles/file/35150798788.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=java+interview+questions+asked+in+3dplmsPDF 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_off0000dd32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD32 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f549.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF549 | 11204 bytes |
SHA-256: a21eac1aeff3a9a2387f6e96e8001b10cf5b46bea78920031ff8b3015d66dad0 |
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font_02_sfnt_off00010f68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F68 | 17232 bytes |
SHA-256: c221c5df61e628d256e37201b7c03e1086dd3ac361d3cb87bec5c6515bd50bf3 |
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