MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that function as a link farm, directing users to various external sites. Several of these URLs point to compromised CMS upload storage or are hosted on disposable domains, indicating a phishing or malicious redirection scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9941
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://solarexperten.ch/fckeditor/editor/images/file/wedilekoloporowi.pdf In PDF document text
- http://a-kamen.com/userfiles/file/41380376150.pdfIn PDF document text
- http://plncse.hu/php_data/file/bisaxovafito.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/2aa17925360d0dcda8e1d520ee2403a1/piwowumexugunines.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160bf0587b306a---97628086956.pdfIn PDF document text
- http://ncdesign.it/userfiles/files/59514646082.pdfIn PDF document text
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/58208019184.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/0pgdtd7uletguicqd0d2q54knm/pepek.pdfIn PDF document text
- https://akapacha.com/userfiles/file/78363176415.pdfIn PDF document text
- http://tv-kitchen.ru/files/files/wudejubivusepaboxokeli.pdfIn PDF document text
- http://albatrossmrn.com/konadnew/userfiles/file/jaludiremoke.pdfIn PDF document text
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/fc942688a21ed1f29d94123f7bb3ce4f/pomezuxirudaje.pdfIn PDF document text
- http://buchtel1967.com/clients/26382/File/jafufukesevilol.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16096b7d8b6074---69121842235.pdfIn PDF document text
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/983mpjbrp73i0f4vd93d60i3b7/79253768900.pdfIn PDF document text
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/oc6qp0fn726vs3ccfdalh5s1la/pufebeka.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-5-18/20210518115401351219.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/7676d7120bfd2cf281bc904bca9e8f3c/47908954300.pdfIn PDF document text
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90ed39379c---63537831385.pdfIn PDF document text
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c27da29ad16---69428433645.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc87e64c16---gujuminafapizeno.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/61704184b7a1c37ce99eec2377219bd5/91695779864.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/bipalugejozisigexaradagij.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=farm+and+homePDF 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_off00013d9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D9D | 17904 bytes |
SHA-256: 709e8f579bc636bc913cba5b5ba5f2f8a3dc72e34bafabf77e236e642253b57f |
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font_01_sfnt_off00016ccd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16CCD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000184e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x184E4 | 10084 bytes |
SHA-256: 256b5df77c7803fa3a72f27445ecb3d933589b01b7ffbad34d5bd9a2c32411b3 |
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