MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a link farm pointing to numerous compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://oniceh.ru/uplcv?utm_term=what+is+a+real+life+example+of+verbal+irony PDF link annotation
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a249e871798---9179897282.pdfIn PDF document text
- https://sharjahcements.com/images/bulk_images/files/fexupifit.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160743d61a4ac7---8266925253.pdfIn PDF document text
- http://chieucoingason.vn/files/torodetulale.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa9c75729b---tiwinadiji.pdfIn PDF document text
- http://tachikawa-derma.biz/ckfinder/userfiles/files/72710660401.pdfIn PDF document text
- http://koryosushi.com/uploads/files/xevidapakipijidewumon.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/89f14e1a439c6aa90ea149540fe9ea9a/29715179392.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073f6ee75186---gifikadux.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e63a8afc4---tipewu.pdfIn PDF document text
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1607c868691be8---24839952305.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/67376560a16cbb12565207487d78b5c0/xurelimisemexeduxegalil.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/vnmd7296j6ah630usn73665ka7/sufarila.pdfIn PDF document text
- http://poorclarescork.ie/images/18652993406.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/uamtk0hbnii41ts9iscet38u6j/wojixojikovumageza.pdfIn PDF document text
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071f56fbdce9---xopufukatanimezin.pdfIn PDF document text
- https://avflash.nl/upload/files/77592116618.pdfIn PDF document text
- http://ed-web.cz/userfilesfile/82596739081.pdfIn PDF document text
- https://nepalipublisher.com/ckfinder/userfiles/files/savape.pdfIn PDF document text
- https://businesslife.com/content/files/10935728654.pdfIn PDF document text
- http://pololanna.com/user_img/files/36789534729.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5e0a9c58a---gexemigu.pdfIn PDF document text
- http://gorisum.net/fckeditor/upload_file/file/bamowigupobi.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608c63c1c528f---65684125244.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f534.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF534 | 11040 bytes |
SHA-256: 9e442c242a70008308acd1e792dad3aaf575d3e0726abbee985f2b598af89a7a |
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font_01_sfnt_off00010e90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E90 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000126a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126A2 | 17036 bytes |
SHA-256: 08f1b9193c5380684aab6b3d97a101a5ae8a265d19efbd03357e4df6b29e5a86 |
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