MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting a tactic to distribute malicious content or phishing pages. The presence of external URIs and the overall structure strongly suggest it's part of a phishing or SEO poisoning campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/urdnl7il40ksjahlr8i585dii9/padak.pdf In PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/5b8013323613156069b9f5e3dc7db7c1/89559880563.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160831885c2f8e---60623719022.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc49773d86---51497661107.pdfIn PDF document text
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092b360e761f---towodod.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c42d9bc8197---zubuxotemunepifat.pdfIn PDF document text
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/52693970692.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16075dce88358b---wivemunilu.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad5e0204f8---37812875449.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083d6ee3fedb---wumagomuwigu.pdfIn PDF document text
- http://taiwanglassgroup.cn/userfiles/file/42936476587.pdfIn PDF document text
- http://eksan-ltd.com/userfiles/file/68907623027.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160cb0483520b6---vizupepegogonolo.pdfIn PDF document text
- http://www.contal-farmer.com/uploads/files/pudisole.pdfIn PDF document text
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2d1682b00---fasetefugideluvagagamirar.pdfIn PDF document text
- http://transinfosoft.com/userfiles/file/43636084082.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=class+4th+maths+worksheet+pdfPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dd6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD6D | 5428 bytes |
SHA-256: b75e1602b256d87d5e21d82ed09ab53e5ca1cf9ce272b5a94239ed47b2655868 |
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font_01_sfnt_off0000efcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCB | 11292 bytes |
SHA-256: d59b59c8c4715281c1ae9eeefe9da13b9e60e237b0b188c767308282a63f55be |
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