MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The PDF structure and embedded links align with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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://infrive.ru/uplcv?utm_term=time+worksheets+for+1st+grade
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/fca64ec805e138250d339ccf1ba777be/36613696400.pdf
- http://animalscipublisher.com/files/upfiles/file/kegirujedabigakobip.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/rovpnpvrni5g6du5gpknd1ngg8/4149713383.pdf
- https://ratsimae.ee/media/contents/file/jipowivatakone.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abddcd6899d---83560652261.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077e6c14c5e0---90467253245.pdf
- https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/7b0d31d44103b8d8f771955718c2f3e4/wijelazo.pdf
- http://kstarsmall.net/userfiles/file///81779587216.pdf
- http://bjhtdszdh.com/v15/Upload/file/2021510055299349.pdf
- http://fruitsad.pl/images/file/kewubikavufo.pdf
- http://risme.vn/files/81829446791.pdf
- https://menlopark.com/wysiwygfiles/file/69523728800.pdf
- http://www.iece.in/userfiles/file/86940864319.pdf
- http://www.cerathai.com/image/upload/File/63934070238.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/omkbjoekcquj01e50e6aimvrh0/vovevegogemixaxakudev.pdf
- http://czdashan.cn/uploadfile/file/2021052719425273499.pdf
- https://anhhuynoithat.com/asset/files/51386371842.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d3fd79118f---mopapukinaz.pdf
- http://duoctruongxuan.vn/userfiles/image/file/56050959764.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/56a60d2405c5131cd03dc23258d3aae5/pinilebabeviwod.pdf
- http://biosurfest.com/userfiles/files/28274330529.pdf
- http://sp3siemianowice.pl/userFiles/files/xilateluwixalakipuzo.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f135ea0133---98230517694.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/566fb6d00d42a7b6694897ca1322ab20/46246607495.pdf
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/5bf884b576860c623aee5340de5b6bd8/wibodemogolakudanod.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dae6.binfffd443869fd6484a9affcaae3621ccc8104a9c4ed2c92830255561ca5aeb624 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAE6 | 10844 bytes |
font_01_sfnt_off0000f3eb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3EB | 16792 bytes |
font_02_sfnt_off00010bfd.bin97d32e424b51b5bbef4daf6d7a6481c29566770a63d9ef292260cab5213d87bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BFD | 16988 bytes |
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