MALICIOUS
132
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised or disposable hosting. These links are structured as a link farm, likely intended to redirect users to malicious content or further stages of an attack. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4625
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://laborke.ru/uplcv?utm_term=class+7+computer+science+book+pdf PDF link annotation
- http://entrackintl.com/uploads/2932312288.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/fares.pdfIn PDF document text
- http://dailyliving.nl/ckfinder/userfiles/files/56659250446.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133ffe5d4156---mosatepajoreguvuninuj.pdfIn PDF document text
- http://qamsar.org/userfiles/files/33255196826.pdfIn PDF document text
- http://mrs724.ir/basefile/drtiketcom/files/18388787817.pdfIn PDF document text
- https://twinscooking.nl/twins/userfiles/file/naperatesupakolomikobuzo.pdfIn PDF document text
- http://pyramidplaster.com/file_media/file_image/file/mowano.pdfIn PDF document text
- http://fra2ange.it/userfiles/files/mefidilewub.pdfIn PDF document text
- https://stallion-international.com/userfiles/file/lomepokizak.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615a6fe6a89ad---31231655740.pdfIn PDF document text
- http://namhungholdings.com/uploads/ckfinder/files/4571594311.pdfIn PDF document text
- https://triangle-electronics.com/assets/userfiles/file/21034804073.pdfIn PDF document text
- http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/63503059626.pdfIn PDF document text
- https://landbondcorten.com/attachment/file/cfbff0ac1469d54819bcde504dcbad9d.pdfIn PDF document text
- https://www.douggoodkin.com/admin/ckfinder/userfiles/files/30867097524.pdfIn PDF document text
- http://www.farnostbobrova.cz/ckfinder/files/wejomug.pdfIn PDF document text
- https://baatco.com/ckfinder/userfiles/files/76548358347.pdfIn PDF document text
- http://accessprecision.com/userfiles/file/39797175622.pdfIn PDF document text
- http://antansconstructions.com/ckfinder/userfiles/files/xawemedatereremilipajivij.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161344e7084a99---lexobabug.pdfIn PDF document text
- http://chinamakina.com/userfiles/file/jazoserafapegisaruzomudij.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/161346fe2b4651---96623770851.pdfIn PDF document text
- https://namkhoasaigon.vn/web/images/files/xisajanite.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c055.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC055 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d86c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD86C | 11192 bytes |
SHA-256: 319e8ab8aef307b2cd1c331fef4e4c3c0d158f4c160a8f138c52155d02a52bc1 |
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