MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to compromised WordPress upload directories and disposable hosting sites. These links likely serve as a lure to download further malicious payloads, a common tactic in phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fae89b5d51---92359878844.pdf In PDF document text
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/8382f623c5145aabf3b6c4f67776ba92/8309132688.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609832c6e6737---nagekazavelefubudiparixo.pdfIn PDF document text
- http://simonide.org/userfiles/file/31916166289.pdfIn PDF document text
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/r7nje2nbslspug3p275hsgjjt7/pogevupapekuwejotigomi.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c5fa6a26d68---jitegagijisu.pdfIn PDF document text
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/c970ef79c3abac6ac8f09dc89b69dc05/vigedunulunonetipimil.pdfIn PDF document text
- http://krikrik.ru/uploads/ckfinder/files/1154015894.pdfIn PDF document text
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/5127a44d51b3dad943c9e81bcf0c56e4/zojajomunu.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160987fa642b2f---delexezaxiwidobaxujarizu.pdfIn PDF document text
- https://cottonweb.net/userfiles/file/75396235745.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090aa5e7dd4a---92464980279.pdfIn PDF document text
- http://jump360.co/upload/files/20210707054215.pdfIn PDF document text
- https://cissud.com/uploads/ck_editor/files/91341641036.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/43a3efe336a56a15497bfd4adf234665/sejizukedekerezomakomib.pdfIn PDF document text
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/3299ef7c0b8951851cfb5aec6590d824/pozelefepanavoxazuxopej.pdfIn PDF document text
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609191b5d8d28---joloborebeganizamafelene.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608c21e79bec0---dukobevutaru.pdfIn PDF document text
- http://www.zywawiara.pl/pliki/12581504910.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202105/file/negubaxobimuk.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a76a0aa13c---90413105029.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16090411b28962---pukapito.pdfIn PDF document text
- http://okna-dvere-online.cz/media/upload/upload/file/26237012682.pdfIn PDF document text
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b233f9b1de1---bewunomolanivaz.pdfIn PDF document text
- http://gediklimakinahidrolik.com/resimler/files/89665827405.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=diccionario+yoruba+espa%C3%B1ol+pdf+gratisPDF 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_off0001c6ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C6CE | 11356 bytes |
SHA-256: cae353f04bafad31d5dd990f3204a17e99069eba9014033f2ae0b9f762ee41b4 |
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font_01_sfnt_off0001e10e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E10E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001f920.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F920 | 18100 bytes |
SHA-256: 5de18e73042ead188f8741a68a64e643fdaa82ea6d49b9bcc394ef596d7d3564 |
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