MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are part of a link farm hosted on compromised or disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://garglob.ru/uplcv?utm_term=extreme+edema+in+feet PDF link annotation
- http://www.centrosanmarco.eu/img/news/files/81412421218.pdfIn PDF document text
- https://silverbirdmarketing.com/pages/images/file/19837578679.pdfIn PDF document text
- http://dmhu.eu/uploads/uplib/file/jatetuxomuwul.pdfIn PDF document text
- http://gapp.fr/medias/files/82052059576.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/fa08b0a091ed22b0331a4d98b6ff3fe8/54346947381.pdfIn PDF document text
- http://burattinojatek.hu/userfiles/file/26508137219.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-9-11/20210911043834957886.pdfIn PDF document text
- https://rowadalbyt.com/userfiles/files/37614448969.pdfIn PDF document text
- http://studiosaletta.it/userfiles/files/76035400960.pdfIn PDF document text
- http://lumieye.com/userData/ebizro_board/file/levobuto.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1615dfe328025e---19684981370.pdfIn PDF document text
- http://gaudi.tw/upload/files/75781618860.pdfIn PDF document text
- http://porpora.group/imagenes/imagenes_contenidos///38809397168.pdfIn PDF document text
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/b387n3g6g04iabsu6986pd29ec/pelari.pdfIn PDF document text
- http://sjar-tech.com/uploadfile/file///2021090322515820.pdfIn PDF document text
- http://akvari-um.ru/userfiles/file/18740980174.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1615bce1bc2ae3---70494058909.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/33571408064.pdfIn PDF document text
- http://brickform.cz/obrazky/files/vawotulexumewomujep.pdfIn PDF document text
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/dogabegoguloxemubavaz.pdfIn PDF document text
- http://houtackers.nl/userfiles/file/6894078827.pdfIn PDF document text
- http://asude.istanbul/ck_images/files/xasavixabafutaxijo.pdfIn PDF document text
- http://ulv-fogger.ru/d/files/reteso.pdfIn PDF document text
- 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_off0000eac4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAC4 | 10264 bytes |
SHA-256: 0c30a402084ae4acb67fb9f9e4f99873feaab9f953eb5a28f03cf3aa565e0829 |
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font_01_sfnt_off000101c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C9 | 19964 bytes |
SHA-256: 330a7c4bd5451e6bef4f3ea756e510e478a67020061e1d3415c082b1b27879df |
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font_02_sfnt_off00013478.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13478 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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