MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple compromised or disposable hosting sites. While no scripts were explicitly extracted, the nature of PDF-based link farms often involves embedded JavaScript to facilitate redirection, hence the inclusion of T1059.007.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 http://taispacedesign.com/upload/files/kazinomol.pdf In PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/93232beacde9aca5ca15a9d7ca8bc3f7/gefavitusumesunikonorogo.pdfIn PDF document text
- http://modelseafarm.com/kweb/ckfinder/userfiles/files/99544130958.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a0ecd040a0d90365b19aa4945b103058/35609375047.pdfIn PDF document text
- http://falegnameriacastiglione.it/userfiles/files/62810911910.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a74d5b178b1---kiliwopobetetuzikokefa.pdfIn PDF document text
- http://physocare.com/Images_upload/files/nofejejiritosuse.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c1aab5f2339---laguxijozuxikuworer.pdfIn PDF document text
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/3b7930f48eeadab57dbb790ff9200f21/3613290280.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/b45f23895d10f0396fab020bc68f25fd/jirinojukotu.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/nuxuzamokujorunexemusegaz.pdfIn PDF document text
- http://a-kamen.com/userfiles/file/33561569274.pdfIn PDF document text
- http://seoulsquare.com/userfiles/file/devajefikanodufowaliraka.pdfIn PDF document text
- http://musicpark-live.com/userfiles/file/xalefozovitigozage.pdfIn PDF document text
- https://clinicscrm.com/img/files/86452939455.pdfIn PDF document text
- https://cli-kh.com/uploads/files/202108240920541280.pdfIn PDF document text
- http://rogo-rotterdam.nl/files/xebutuvuvuvapunipuvevis.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=1+ml+to+tablespoonPDF 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_off0000db15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB15 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f327.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF327 | 19064 bytes |
SHA-256: fbacc4c5f4e98ff1c49c5a6545c4822cd626e20c6e6ec2e662114935dd9b771b |
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font_02_sfnt_off000124d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124D4 | 10316 bytes |
SHA-256: 5c74ffedd133053c41b8b84dbb0797875c1cbaac85c32b470b1f0f3c97c1287b |
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