MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for malicious PDFs. The PDF also contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious content or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://zenithmetals.com/files/fekozobipojolonoledi.pdf In PDF document text
- http://megaprestige.ru/uploads/files/rixugivuzexi.pdfIn PDF document text
- https://inprovitchile.com/ckfinder/userfiles/files/sinasojelimizob.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/bb1e14421b41e220438be39bbf03c46c/49890706978.pdfIn PDF document text
- https://eastmanllc.net/ckfinder/userfiles/files/47805148055.pdfIn PDF document text
- https://kueapem.com/contents/files/49027959931.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16131db749cc82---8193397457.pdfIn PDF document text
- http://stellarp.com/userfiles/files/917897301.pdfIn PDF document text
- https://iva-vietnam.com/userfiles/file/gakekixodowete.pdfIn PDF document text
- http://groupkaishan.com/d/files/kosugerumurewegij.pdfIn PDF document text
- http://kabaretyimpresariat.pl/Upload/file/24810277335.pdfIn PDF document text
- https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/61492078396.pdfIn PDF document text
- http://zuszdounky.cz/files/farexibap.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/f2a526ec0d82c16de9adcbf3a0e6723c/4194237782.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/710781821cfc9ae291cf0658fbe8600f/28978610657.pdfIn PDF document text
- http://www.yt333.com/userfiles/20210912/file/1631424384.pdfIn PDF document text
- http://chiari-web.com/ckfinder/optimist/files/1839091637.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614adc488077c---86464330589.pdfIn PDF document text
- http://hiace-yoshikawa.com/js/upload/files/vorifuvavinimixobijum.pdfIn PDF document text
- http://bulgankhangai.mn/userfiles/files/vaxofejukumon.pdfIn PDF document text
- http://dietgame.net/admin/fckeditor/data/file/20210924211753.pdfIn PDF document text
- http://fullx.net/files/93272057928.pdfIn PDF document text
- https://myagenda.myagenda.cz/pictures/editor/files/misitoxufot.pdfIn PDF document text
- https://menuiserie-sainte-anne.fr/userfiles/file/dedobobibexikosozewugezak.pdfIn PDF document text
- http://piannocreativo.com/js/new/fckeditor/userfiles/file/liwubagez.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=molarity+and+volume+formulaPDF 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_off0000b199.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB199 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9AB | 15812 bytes |
SHA-256: 3aad02b35779c0243bd741ade42af0fcf5e86661f17e3cc37c38d75d951ac2d5 |
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font_02_sfnt_off0000f223.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF223 | 10620 bytes |
SHA-256: 64c54d383b431c79b6f6484e730b375ee982d866c3366752268d68d7a4e2d112 |
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