MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan PDF. It contains numerous links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of multiple external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.7972
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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097321d9caab---44716558882.pdf In PDF document text
- http://dtpokebar.com/uploads/files/xiledamilevegosekulimuriv.pdfIn PDF document text
- http://bkdesign.ee/userfiles/file/pemagonupikime.pdfIn PDF document text
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eccce58cae---kazizomukazopedolosam.pdfIn PDF document text
- https://bouwservicewinthagen.nl/userfiles/image/file/togumiponip.pdfIn PDF document text
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/msp93edohcn68g6adr8fkbio73/11024756706.pdfIn PDF document text
- https://studio-september.com/wp-content/plugins/super-forms/uploads/php/files/507bccf070bda6a99ec16e059d66a7c4/regazedovaj.pdfIn PDF document text
- https://nirmalujjwal.com/public/ckfinder/userfiles/files/89158732153.pdfIn PDF document text
- http://wojno-stal.pl/pliki/file/davul.pdfIn PDF document text
- http://ztkammer.at/uploads/file/41066562982.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c864c54600---89068961471.pdfIn PDF document text
- http://serdceprirody.ru/userfiles/file/53092636960.pdfIn PDF document text
- http://novussiteyonetimi.com/uploads/file/bovaketelenuzumepo.pdfIn PDF document text
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/v2v840ndheklb3d8ppmf9brds3/3250659760.pdfIn PDF document text
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/3c65b8f46fcd7b60f50deebdf93ea85b/mobusoravar.pdfIn PDF document text
- http://sjhrz.com/images/upload/File/wowem.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/3pqe19htgkfgv8ctqkck95gk0c/43118381673.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a23297eca43---94065181450.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16075c167f1874---fesuga.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a8547359b80---87569355452.pdfIn PDF document text
- http://mobydick-band.de/fckdata/file/5085054126.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81ed5a0de---78846752041.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=where+there%27s+a+will+there%27s+a+wayPDF link annotation
- 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_off0000e543.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE543 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fd55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD55 | 17108 bytes |
SHA-256: ea079ee576002ec69b713c0fd314f479716e4b1a2d1e974ab8868d57c9aed42a |
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font_02_sfnt_off000128d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128D1 | 10208 bytes |
SHA-256: 772d463271648f56ec88978ee74cdcfaa19469b8b20747562680daa5908448b6 |
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