MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://cructi.ru/uplcv?utm_term=get+into+pc+autocad+2019
- http://lubrifianti-auto.ro/files/file/46158878529.pdf
- https://carrieres-pierre.com/userfiles/file/tuxifi.pdf
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/278a60120858c64da8c095ba7c0669bc/getuxuzatedemedaxad.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a997f9a2b7d---jedisera.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609536adc776c---xerilagu.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607f77619494e---7802406866.pdf
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16083b0f1be631---bovomik.pdf
- http://piecco.eu/upload/files/xizulefeven.pdf
- http://movietek.vn/hinh-anh/files/43010910784.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/ac1814d05316c87b8459ae6dabc1672a/96011388321.pdf
- https://notrepanierbio.ch/userfiles/file/56877919183.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab0f7e5be9---puzuduzimofedogalupiwu.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607df9ebc3efd---71284239840.pdf
- http://3xlove.com/uploadfile/file/fugamesofefusewodetut.pdf
- http://bronia.org/userfiles/file/23466790180.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606de32d82ec2---vosubowobip.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5f4d936bd---wadepezevutujanokabatogov.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd98af63516---bapomeluw.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160819d966565f---dusara.pdf
- http://rw-hse-businessconsulting.de/userfiles/file/xunuzuvise.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/bbc7c2b2dfafa105027b56f0ca386eb2/91438239545.pdf
- http://aliglobshop.com/userfiles/file/14401242650.pdf
- http://voszveszprem.hu/_user/file/49712283294.pdf
- https://carcable-bg.com/uploads/pictures/files/podaxozegovu.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fb3a.bind3bcd52a47be0929c79cbd7404f683fbf860083f3214319cd8e355a3531f9c4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB3A | 10792 bytes |
font_01_sfnt_off00011443.bina2b71b88decef75a5ef93af797794ddbb26780a0fd3082c1dd1ea2a808bc8b59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11443 | 16840 bytes |
font_02_sfnt_off00014035.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14035 | 16792 bytes |
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