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 http://akkoryazilim.com/userfiles/file/94412119552.pdf In PDF document text
- http://leadershipcareer.kr/fckeditor/_upload/file/sodumabetupe.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5170f9c1c5---duratezirapijemedokawa.pdfIn PDF document text
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/ff4596eb6c721b876b0f33141777f9ae/48293892890.pdfIn PDF document text
- https://bistakalikotenetwork.com/userfiles/file/66310109732.pdfIn PDF document text
- http://alnoorcity.com/userfiles/file/fizexu.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160829f45c2552---21723035103.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6328ec55d6---sariwijiwe.pdfIn PDF document text
- http://gw73patriots.com/clients/1/1e/1ed986c9d410becccfd9995a8318e329/File/501774998.pdfIn PDF document text
- http://newgatedesign.com/Images_upload/files/vokolanu.pdfIn PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c61b69c8d37---35415824484.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/0c2fda60f90176fbdc84d90185365248/xamoderuzilogifubojidep.pdfIn PDF document text
- http://restravel.ru/ckfinder/userfiles/files/nujipisifumamin.pdfIn PDF document text
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160aeef2f5931e---36540006359.pdfIn PDF document text
- http://ducthoaudio.com/upload/files/zusitozegi.pdfIn PDF document text
- https://mariellatriolo.it/public/file/mexibojimisovafusulig.pdfIn PDF document text
- http://fedorahosted.org/lohitIn 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/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=12+business+maths+book+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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off0000f677.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xF677 | 18632 bytes |
SHA-256: 63cfabad7d54fd88e1fa5c066f74fe494314a2e9dab4c650fdf0943bcc864dc3 |
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font_00_sfnt_off0000e416.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE416 | 5448 bytes |
SHA-256: a536a4c1194ac268188b9d8897f06d035c466da2223932e7adef563a1d5cdfe3 |
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font_02_sfnt_off00011f01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F01 | 11056 bytes |
SHA-256: 374cdce0a551934a9fb81cfdab926e23e1e2665f6132a30946a39fadae40e5c9 |
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