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 0.9784
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://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160bc16c22751f---rikivag.pdf In PDF document text
- http://biomassasia.net/data_ed/userfiles/file/feneralisemaxuleguw.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16086813ae00ee---6143233256.pdfIn PDF document text
- https://alexandrapanayotou.com/web/images/static/file/43320665073.pdfIn PDF document text
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16208004185361.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1606f687e3376c---83045675855.pdfIn PDF document text
- http://seventyfirstclassof69.com/clients/60772/File/pidenus.pdfIn PDF document text
- http://akicgiyim.com/userfiles/file/40490247733.pdfIn PDF document text
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c058612906---20710831646.pdfIn PDF document text
- http://baugeraeteverleih.de/benutzerdateien/gozegizajudomekeladulevi.pdfIn PDF document text
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/5fc90b3f933b41b8c04baff37c0a139d/86056928401.pdfIn PDF document text
- http://landmanenterprises.com/clients/6/66/660ad4be7ac834282af30b44844c6003/File/43146005927.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/1e25fe3ccfc9a5a3a54eb2159f4467f7/60292801179.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210614044634_p7r9b1.pdfIn PDF document text
- http://americanpetrochemicals.com/customers/CMS-IMAGES/file/24221505207.pdfIn PDF document text
- http://emannsltd.com/userfiles/supitewipuwero.pdfIn PDF document text
- http://seyrimerdin.com/userfiles/file/53564328826.pdfIn PDF document text
- http://mbcasc.net/imgs/file/nawamezitigopowivit.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ae74c4b2339---944160420.pdfIn PDF document text
- https://narimasu-chintai.net/jcfiles/file/6637438288.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a32d2ca275c---91799536843.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d59c11c980---63615485426.pdfIn PDF document text
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec14d800c6---fuzikepozuludurafoxa.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c18d932024d---noxomivumifoza.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160bd338575b29---151325788.pdfIn PDF document text
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/62362648ee359f0b219940e7ca4609a7/fenagaturawukeda.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/ad8c4d2b1458502eb692375b29224667/fenabutapabogelosuluvobow.pdfIn PDF document text
- http://goodwill.pl/userfiles/file/10668311962.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=dramatic+editing+in+photoshopPDF 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_off00011d46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D46 | 17936 bytes |
SHA-256: 976fabea7b0a1f1c24713062b66cb3769ffac03a899289058c8af89de0c285ac |
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font_01_sfnt_off00014ca8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CA8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000164bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x164BF | 10916 bytes |
SHA-256: d5142ba6f0c0f890dc5555d26eb7d06784cc8ff4ef2aaffee578ed495cd6c1a7 |
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