MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://archism.ru/uplcv?utm_term=lightroom+dng+download PDF link annotation
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160afcca0f3f0d---17535091879.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/e2da28d3d245e4711f36d7c42a8fa362/fizekupazawinaxav.pdfIn PDF document text
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/09afc8d97236321cdaa2faf9d8c62442/79359495980.pdfIn PDF document text
- https://aquafilling.com/userfiles/file/65337486428.pdfIn PDF document text
- http://sbsinternationalschool.org/sbsisnew/userfiles/file/33718919457.pdfIn PDF document text
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b5d000996d2---ziwamojopimugezizozokif.pdfIn PDF document text
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/6k837gsoc24uqncsfk88rsao11/27028062394.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6e74ae6675---31847123995.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce3d1db8b6---87854841016.pdfIn PDF document text
- http://traiteur-ribot.fr/userfiles/file/13771714719.pdfIn PDF document text
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/8oci9pqjbjdple0ndmjglsr74e/13707283643.pdfIn PDF document text
- http://axwelindia.com/uploads/41707318291.pdfIn PDF document text
- https://rocksoliddesigns.biz/userfiles/file/92284764693.pdfIn PDF document text
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/3da6eb5d65ca4bbe845cc8361a252da2/robasukexuzumiki.pdfIn PDF document text
- http://robertoantoniz.com/resources/original/file/nabamoku.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://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_off0000e883.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE883 | 5096 bytes |
SHA-256: 22f49e5f64dc65e7a0a071687696c9519b4ebbbda733865f79285f6067528dab |
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font_01_sfnt_off0000f9ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9BA | 10944 bytes |
SHA-256: cac6e0641fea658d1b2e395291a480c73830798decbf6513fb626988b22d7819 |
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