MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised WordPress sites, suggesting a link farm designed to redirect users to potentially malicious content. The 'SE_INVOICE_LURE' heuristic indicates a potential phishing pretext, although the document body is heavily obfuscated and unreadable.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/ord6q0e4vpb0cpbgfbb5stkkrv/domitegusosofowonekure.pdf In PDF document text
- https://sayurhijau.com/contents//files/dulizaguki.pdfIn PDF document text
- http://davidhammerstein.org/userfiles/file/kumazubezibedidese.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/b363588fcd65bd9d92188b474a0d1b22/90760173697.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16100d9633f27e---23598178937.pdfIn PDF document text
- http://dinskayarealty.ru/media/file/bavemuzabodizizikakivi.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/3b2o358rqo5ov5shb7acr6r52l/99736155298.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/8b60a330947c877149ccbb5c7343385d/98454875661.pdfIn PDF document text
- http://czdashan.cn/uploadfile/file/2021062300554473499.pdfIn PDF document text
- http://areaengineeringsrl.eu/userfiles/files/46439303312.pdfIn PDF document text
- https://bushregenerators.com/userfiles/files/pixovapu.pdfIn PDF document text
- http://vngo-cc.vn/cooker/public/files/35141285647.pdfIn PDF document text
- http://clubesquilacoma.com/uploads/files/63462558810.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd30b6f2d1---11446710271.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d558aeedb92---35573087115.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608170e871553---molufoxobuwabujolopikusiw.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a53e9fb6eea---kofuwetobibepuxeb.pdfIn PDF document text
- https://uniontend.com/userfiles/files/kisusoselopipixukirala.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a639f6a1b94---28951568044.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6b6fcd934---jimijudilejikutidigibulu.pdfIn PDF document text
- http://americanpetrochemicals.com/customers/CMS-IMAGES/file/77574982859.pdfIn PDF document text
- http://aps-mes.com/files/file/85726895689.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e375cad93---kemole.pdfIn PDF document text
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16081f20319f13---mudoxolapazawigubegi.pdfIn PDF document text
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0d21d74e2---donezulijitiniverakom.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=how+to+get+a+small+business+loan+to+start+a+business+with+bad+creditPDF 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_off00010b4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B4F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012366.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12366 | 11136 bytes |
SHA-256: bbe00f6c1a932d7b43a1f5347c6c650d1afbf9b757eaf2989580985c2321fda3 |
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font_02_sfnt_off00013cfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CFC | 17196 bytes |
SHA-256: 4208ff361fc1da43698284d55e9b3a5fa2c30d6db98c0acc82dd13449a47605e |
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