MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.6162
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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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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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://inwebjor.ru/uplcv?utm_term=advanced+english+grammar+class+8+pdf+download PDF link annotation
- http://cgl.lu/userfiles/files/94187113349.pdfIn PDF document text
- https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/a14fc0252bcde4e7042ad781b31b99ff/xilugopofoferadusovagi.pdfIn PDF document text
- https://ajwatravel.com/wheelmarine/userfiles/file/nojose.pdfIn PDF document text
- http://thuduchouse.vn/pics/file/13399325.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609e01af81d10---fidanazujurudirixan.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4d94a58dc---54157410443.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607387483ae7b---38091568160.pdfIn PDF document text
- http://broadviewlibrary.org/uploaded_bvlib/file/38264629637.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1607510ac037b1---49130857483.pdfIn PDF document text
- http://djapm.com/userfiles/file/19538220782.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/9d056d44f854775a1c8641299f321359/29646620177.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a58279f00b---pekerofodesajari.pdfIn PDF document text
- http://bestcoloringpages.com/userfiles/file/tosagipuxew.pdfIn PDF document text
- http://auroraenergyproject.it/userfiles/files/dibalemoromirabela.pdfIn PDF document text
- https://ntwbearing.com/UserFiles/File/tumadizupamemozi.pdfIn PDF document text
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e7c5323340---depazobawisezum.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f9bf265ae---65825525464.pdfIn PDF document text
- http://www.dagmarsvendova.cz/admin/js/ckfinder/userfiles/files/60704894702.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/094d0b26039692d5e71f6913921ad2ae/97343355948.pdfIn PDF document text
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/b302136e85daea72f494e5ba039fa564/67440315988.pdfIn PDF document text
- https://ventadeterrenosurbanos.com/userfiles/file/torimukovutewutafexutelel.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742e3278cc1---79950858577.pdfIn 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_off0000cc02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC02 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e419.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE419 | 11308 bytes |
SHA-256: 985f3e0f9c3bb6bade4bdbd89394a0b2fbf15dff09d51f3d359e30e48daf0bae |
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font_02_sfnt_off0000fe54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE54 | 17224 bytes |
SHA-256: 7c056e28719019d9bb1c6a4d526d8a66caa7b44cdb4407f6228b88bfe01c3966 |
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