MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
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, presenting numerous URLs that likely lead to phishing pages or further malware downloads. The presence of external URIs and link farms on compromised CMS uploads suggests a distribution mechanism aimed at tricking users into clicking malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://queure.ru/uplcv?utm_term=motivation+letter+free+template
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/9274fa9eb531772d728890a7c6f8b6c8/35590004673.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/srvpuniq8i6addm71gi63h6aeg/656125220.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f58fa9b407---tadiruliguvozofuzinuwujez.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/66721e807f756a17b0658228c88a8a2d/11110814698.pdf
- http://el-master.ru/userfiles/file/pupojiwavimokazibodimif.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9c4d5c321---40041677541.pdf
- http://riversedgefm.com/files/file/tafigadajubutavebibegot.pdf
- http://chronocertif.com/userfiles/file/buvexapit.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160747c112fc14---42063796358.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e578c3797---13022059539.pdf
- https://healthmatters.me/userfiles/file/pufisevewego.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160757c6d804b5---kujofejabonugonuwotudopu.pdf
- https://observatoire-omic.org/documents/file/gozet.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16073cc65d34af---87857583793.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/d1e47ae056ca7ba1ccb23039db25cae0/5499764798.pdf
- http://viprealestatebrokers.com/userfiles/files/zarerazol.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160bff29f24e4e---jixawonuzonurus.pdf
- http://indago-rovigo.it/userfiles/files/38415718031.pdf
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/11b61c739ee86d2dc3a8d955e784df12/83707925916.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/7d32935d33348f490b920d6c039594c2/kogazixisumizovopifa.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/rmqf6j6l63sqma8uvdtuiqb2eb/91559367243.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/v64dllc016qlq4l2cteafkmtrc/97366432524.pdf
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/69bab2ca7100b940fbe152320a1db422/56968564757.pdf
- https://melz-feu.ru/upload/kalotibaso.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a47f02c81ec---35734069826.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_off0000d275.bin79173a3ead20f71edf03cc5a501172032333d559b42eb47fa1d28c37f7810f54 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD275 | 17260 bytes |
font_01_sfnt_off0000ff2c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF2C | 16792 bytes |
font_02_sfnt_off00011743.bin5e056ba218b54f8826448a39e44bdb48ae87c74a837d4e864c79cf9f12ead3e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11743 | 10408 bytes |
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