MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by both a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple compromised WordPress upload sites and disposable hosting domains. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://biodent.ro/m4fm_files/m4news/ck-uploads-files/legorilixidizupikuliz.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a33eef2c37a---zafewarunikukebifa.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a54a46acb38---ginoneto.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085372dbe807---41971099608.pdf
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/b5e6b7506fee7a7a5d71aee780afc09b/35097059985.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607362e838cde---45612111481.pdf
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/662e5fa71b40cb684928f9d500cb7565/modumozinipotinatebegasis.pdf
- https://nepalimodelagency.com/userfiles/file/55175396789.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bf4e2b35c99---xudinovijaxijuvidadetibaj.pdf
- http://tamker.hu/userfiles/file/92381715792.pdf
- http://arohitourandtravels.com/userfiles/file/28834782641.pdf
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9f468350c---juzeperogowasasevosela.pdf
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f87acf867---31594705844.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/gji0geolsff1jaabp61mh8l1e7/75211513069.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ad5b6953f24---zokogakerutuzosomibi.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092c2dca14c9---defununiwifutekered.pdf
- http://bafiti.com/sklep/userfiles/file/63681951554.pdf
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/7d036e0904325e60469063d68c5314e0/jesezepufowukozojalek.pdf
- https://soudurelauziere.ca/upload/editor/file/86450828948.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/278ea75d95d125fcd8dde5f9366b7b87/ziwifokebirafalosur.pdf
- https://aviatroglo.fr/IMG/file/13945860776.pdf
- http://vstarmp.cn/upload/files/20210611_145054.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=village+point+family+medicine+clemmons
- 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_off0000d651.bin45f332262e38c95d6f7c434e48e174e9a265f899adf099d576e9fbf4f0ee86ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD651 | 10948 bytes |
font_01_sfnt_off0000ef7d.bin9f227cdd6aa8a805d44d453c278e59d13c889c14478e6c63795b9dd9a2abab17 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF7D | 16460 bytes |
font_02_sfnt_off00011a7f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A7F | 16792 bytes |
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