MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external URLs, many of which are hosted on compromised or disposable domains. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, suggesting an attempt to distribute phishing content or malware through a network of seemingly unrelated websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://coretry.ru/uplcv?utm_term=order+the+following+fractions+from+least+to+greatest
- http://dobrasekacka.cz/userfiles/file/44774983653.pdf
- http://www.ximangsongthao.com/app/webroot/uploads/files/51528804557.pdf
- http://chia4kids.ru/ckfinder/userfiles/files/32066053478.pdf
- http://sictombbi.fr/ckfinder/userfiles/files/13842816087.pdf
- http://westtech1963.com/clients/d/d4/d4250bc21dcbbf02d7f9bc68df143add/File/47442639268.pdf
- http://fullx.net/files/sedevotogosiwaxedo.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b4a3f2cbb---55664095728.pdf
- https://fullhousetourism.com/UploadFiles/file/20210829080053142.pdf
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cb8648d10bc---pisolugumurobewukebe.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b88390a9690---90187045898.pdf
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/472f8cfe741aa30f38677a3ccba069bf/fitaliweris.pdf
- http://bigband-ulm.de/userfiles/files/masowijosekagavun.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f4b9aab267f---xiziwujafepurof.pdf
- http://botosani.ro/img/uploads/file/85160714101.pdf
- https://kampusogrenciyurdu.com/file/41123099377.pdf
- http://polishingmarblefloor.it/userfiles/files/30806615290.pdf
- http://righetti1970.com/clients/872956/File/82616231485.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1611161bd11d55---gaviveres.pdf
- http://asianaccounting.com/admin/fckeditor/userfiles/file/39738951948.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/3ddd78b86de04b1524e5a945018f849d/96964981359.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078f205e3b06---wugogin.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16078eddfd6465---85859018836.pdf
- http://eths1967.org/clients/6/6b/6b000f7c2bca5b3a89f93fde6b54c5e6/File/5464851742.pdf
- http://thetownsendfamily.net/clients/a/ab/ab79602242cca8f930cd52af13df1d51/File/jutapigoduzujo.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_off0000bbdf.bina25da6d73ae81a4f398d7253190ad1a565de5aac1514a8a824c014c71486e215 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBDF | 15396 bytes |
font_01_sfnt_off0000e2f8.bine674f9d2094d1561fe34d05704150bdb15c69d51fbb437090f4f561ade300983 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F8 | 11032 bytes |
font_02_sfnt_off0000fc4f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC4F | 16792 bytes |
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