MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress upload directories and other potentially malicious sites, suggesting a phishing or redirection scheme. The PDF structure and embedded links are indicative of a technique to host malicious content on compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a66d943b381---31235317197.pdf In PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a90f8d5c7a4---93178461296.pdfIn PDF document text
- https://residenciasanamaro.es/userfiles/files/59711795941.pdfIn PDF document text
- http://bischofs-scheune.de/userfiles/file/48574024287.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de1cd751f2---biregubalitowexabeli.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877bbe33625---fufuzolegodaratinefaw.pdfIn PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/ad8622e1d684ce160ff19dbff5473c7b/buvutekaxakomegizonaxep.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16106b334b6ed4---90888743294.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/77363234711.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/o47psnai55abngullcjbicke42/66022726376.pdfIn PDF document text
- http://axwelindia.com/uploads/43619664126.pdfIn PDF document text
- http://americanpetrochemicals.com/customers/CMS-IMAGES/file/rariwanoxeduzaka.pdfIn PDF document text
- http://jnejendomsdrift.dk/userfiles/file/danibut.pdfIn PDF document text
- http://kfnmsz.com/upfolder/e/files/20210826193044.pdfIn PDF document text
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cd33f057f21---86904534727.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a48e00199---xubexejuxumugezajewov.pdfIn PDF document text
- http://camel-republic.com/media/userfiles/files/kavag.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a4514ad5580---80060120345.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/3l83rpfffktrvem2b7qpc62l2t/17080818885.pdfIn PDF document text
- https://ratco-hardware.com/Ups/files/38377657076.pdfIn PDF document text
- http://slphs66.com/clients/e/e6/e62fa13cff665df70d7481f632b33819/File/54316942053.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160989f27cbe7e---kapuruzuvijebetifuxowu.pdfIn PDF document text
- http://seasonsblinds.com/uploads/ckfinder/userfiles/files/xibuvavokutebego.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/j6l027fg95d1kcu4upsr9s0tfp/38881764148.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=geography+optional+syllabus+pdf+2019PDF 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_off0000d35f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD35F | 17548 bytes |
SHA-256: e8b4efa5b1cc0102565a672a6c0ed73b5e1aec4fa8db483cda17f26368d25519 |
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font_01_sfnt_off00010063.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10063 | 11632 bytes |
SHA-256: bddd59dfee1ffb8c097faeda2aeb194bb7d3a12c39d7eeffe36dd35a6e9e8ab7 |
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font_02_sfnt_off00011ba7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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