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. The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links aligns with phishing or SEO poisoning attack patterns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/d35ab0f48beefe9bdc1ebc3c9050a02d/43358182166.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6c0480c4ca---woliruzaxagetaxaw.pdf
- http://z-i-f.ru/userfiles/file/savivafezomamotokaguresuw.pdf
- http://wrtour.com/FileData/ckfinder/files/20210531_F35BCE8C83FCA54D.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087235c95ec1---puvusefedubarewosuvamilag.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078e030cdd74---33194047791.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/3489043e3f2190d5cfabde9c38268d7f/vogitejinurivixima.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/idn5m820cvdih2pbd4a0i312g4/satononukep.pdf
- https://namratalakhotia.com/userfiles/files/zakewefiwu.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/304899f68c538e8607b6b3e3f0a846bf/fotubemuvev.pdf
- http://jtour.vn/userfiles/file/38756959001.pdf
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/71518719209.pdf
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160893a788fc37---95605885617.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/8540cd977c33b1629a0dff9968313e4e/65087759814.pdf
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd0db64fd1---15111012358.pdf
- https://aawyx.com/sites/default/imageuser/file/wixobazisakeda.pdf
- http://studioambienteterritorio.it/userfiles/files/ziwetegusez.pdf
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2a2fc914f---femosubobow.pdf
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce86a07a5f7---47114268639.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f160a41bd---62414238622.pdf
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/2c8dkc72dv0ef1m7qel1bt10kg/vitalopozoxitobi.pdf
- http://learnazia.com/fck/imagesfile/gokapumasixeta.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=technology+makes+people+lonely+speech
- 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_off00010226.bin749fc63a66abf6f07c4a0293767051539c7a392ef9730a2fab1318b412019371 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10226 | 10700 bytes |
font_01_sfnt_off00011a94.bin78ab2eb11663ee0181a9788c0ed6efdca540ce89d6922b6456947a7c27d99afa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A94 | 17196 bytes |
font_02_sfnt_off00014721.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14721 | 16792 bytes |
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