MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. Heuristics reveal it functions as a link farm pointing to compromised WordPress upload storage, suggesting it's used to host or redirect to malicious content. The presence of multiple URLs on disposable hosting further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://master.plus/wp-content/plugins/super-forms/uploads/php/files/0285ac4f335dedd74f26c34902769d7d/ripabosaniruga.pdf In PDF document text
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1606c74472b0d8---50755738048.pdfIn PDF document text
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ce2e68561c5---xemogoxogeruwuwiroweno.pdfIn PDF document text
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/29002a105bfc65428c508955b3e9388a/98482070485.pdfIn PDF document text
- http://aifamilyreunion.com/clients/59202/File/27501688264.pdfIn PDF document text
- http://muzeumostrowiec.pl/obrazy/file/13931546462.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa7de7cf113---zegefubagonuvunosesub.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/835f49dcf0054bc953c44eb75b4c8f7d/19473540629.pdfIn PDF document text
- https://atrax.eu/userfiles/file/tivemeluxenolilep.pdfIn PDF document text
- http://www.brickchamber.com/ckfinder/userfiles/files/wedinuxilejovojojuvagak.pdfIn PDF document text
- http://gsemilia.it/userfiles/files/boxuduxalojumen.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c603a420932---zokowipolijowokuk.pdfIn PDF document text
- https://maryamghiasi.com/images/upload/files/janafefadabuxugezoluzaxit.pdfIn PDF document text
- http://trungtinjsc.vn/upload/FCK/file/72902358671.pdfIn PDF document text
- https://codecs.ro/images/file/8569825652.pdfIn PDF document text
- http://sindikat777.ru/ckeditor/ckfinder/core/connector/php/uploads/files/vejemolodedasuvonimo.pdfIn PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/b633efc9996abf77244bb175ea9377f9/45320871420.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/e3087e73021169d30fa019f965c7d28e/51605873199.pdfIn PDF document text
- https://full-flavors.com/img/Data/file/44091982354.pdfIn PDF document text
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/0c76ea7126d9bbf2717dfeb4fa2f09db/ruwudimegawori.pdfIn PDF document text
- http://aryajob.com/user_upload/file/75743657335.pdfIn PDF document text
- http://hoaisonland.vn/upload/files/rusapotumilarumumi.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161048e64c3f1d---93721833339.pdfIn PDF document text
- https://abhimaninteriors.com/ckfinder/userfiles/files/85266475491.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d439a6a7c4---39120037135.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=desantis+on+the+issuesPDF link annotation
- 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_off0000ed24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED24 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001053b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1053B | 10160 bytes |
SHA-256: 863276c94e82fbb3d8fc9da13a161d0162072c752156bb0ff15a19d29763f51c |
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font_02_sfnt_off00011bef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BEF | 18816 bytes |
SHA-256: 6c16a3d15da40e221210e3ace0aaaaa203eb79bba7d77b9bbfc72ae14657f20a |
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