MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a link farm pointing to numerous compromised WordPress upload directories, suggesting an attempt to distribute malicious content or phish users. The presence of external URIs and the overall structure indicate a likely spearphishing attachment used to redirect victims to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ed121e6efd8---28815590108.pdf
- https://pypconsultores.mx/userfiles/file/1744117271.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/0639a330d34d938b6fab29174cb0e6a6/vorurenivajufazonadaj.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/e317459f43b5b8ece09b5af8be7bee3a/58006203478.pdf
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/fc2ob36us8un82sr72dr2cu7i7/jozirikavojepix.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/af3a2710b7fcbf50fd98956caae2ba82/56701018006.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609207bc6e424---bofixefadukoto.pdf
- https://cuisinescartier.ca/upload/editor/file/voxevuwali.pdf
- http://forumts.com/ckfinder/userfiles/files/14181786899.pdf
- https://arrayamed.com/userfiles/file/pesidipa.pdf
- https://alperbehang.nl/userfiles/file/fogogol.pdf
- http://china-hold.com/UploadFile/file/20210611135305187.pdf
- http://studiotecnicofrisoli.com/userfiles/files/xemujigiserigixupugidudat.pdf
- http://cafegreenwichvillage.com/uploads/files/vatowilirukabeviwemenif.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/d3182c739fb406b3007acdcb8c56bf0f/rasud.pdf
- https://alakharia.com/public_html/userfiles/file/74876142047.pdf
- https://acrgroup.nl/userfiles/file/vabakutuweliko.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/26432e30cb9c60dfb01b934848f5fbb2/vemadolanirofubo.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1608b00025d9c9---34922883173.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9f1e0de14---belupavamex.pdf
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/e9279cm786mspm1qm2e4vfel13/kebawoxixaj.pdf
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d226874d1---porofewewa.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=how+to+use+elytra+wings+in+minecraft
- 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_off0000e51a.bin2eff31d7b6e79b38ffc477b5b43c13c1880fca9bce29c71203f675108808b800 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE51A | 10968 bytes |
font_01_sfnt_off0000fea5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEA5 | 16792 bytes |
font_02_sfnt_off000116b7.binbe00d68c10acd57594d0b53b19dfb7590b13e59d6db164163fa7a3e6fdc9596b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116B7 | 17088 bytes |
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