MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple potentially compromised websites hosted on disposable domains. The presence of numerous PDF link farm heuristics and embedded URLs strongly suggests a phishing or malware distribution campaign.
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://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/26486b0afb39516b14c0434b9ac1c9a5/40313821539.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/qicu6ghlfqctdf68mka4h06nbs/xufugetavetenuvezowusami.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a65c4514cca---29924593029.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160a87dbb9fd34---16178175999.pdf
- http://elma1.ru/!upload/files/2427307501.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160945f8423eda---jororotipunizawuluxifimu.pdf
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/e26c79abbae340c96358980bf8ef7651/wevejepoverinodifobi.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/cc219bff76a7bab6e0092bd5036fb320/zarox.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/57066956795.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a70c7bc0fd2---begegulut.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608116b6e9057---87894000976.pdf
- https://phuketwebstudio.com/ckfinder/userfiles/files/11254457374.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b648ae8c0f3---82655686491.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adf41ee80ef---laletoji.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160bb3a4c1876a---wujibaju.pdf
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/p77kn816dumkk79t7lp21c3guo/boxowi.pdf
- http://kangs78.com/clients/66216/File/36432255599.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=best+mac+snipping+tool
- 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_off0000e642.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE642 | 16792 bytes |
font_01_sfnt_off0000fe59.bin62114375aa713fb0799558cbe27459c22fe9b6def88aba7f79611edf43994da8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE59 | 10668 bytes |
font_02_sfnt_off000116d1.binf6b4e375520a30bd1d1bf5a63b41ac8c64130145d3330bfe87e107fef37963d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116D1 | 17044 bytes |
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