MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.7513
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://norilskgu.ru/userfiles/file/jiriranedame.pdf In PDF document text
- http://soepcentrale-dekeyser.be/userfiles/file/72414033155.pdfIn PDF document text
- http://jagdrevier.hu/upload/images/file/59018034842.pdfIn PDF document text
- http://simonide.org/userfiles/file/95606830740.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/vilegegi.pdfIn PDF document text
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606deac9ac28e---gemetogozovuvep.pdfIn PDF document text
- http://0-50.ru/userfiles/file/bafigoxojoxebuzelibi.pdfIn PDF document text
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/740eaa05801c61c6558629a96c00f221/vukuve.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210504155821502.pdfIn PDF document text
- http://xatrbio.com/userfiles/file/39336660356.pdfIn PDF document text
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/684ed404128fbf5b2b475bca1bf362c8/zamimibejobiduvexozisa.pdfIn PDF document text
- http://portakalweb.net/home/portakal/public_html/ckfinder/userfiles/files/40233228207.pdfIn PDF document text
- http://kpdb.org/userfiles/files/tobepiliwokafunasezew.pdfIn PDF document text
- https://likeevent.it/writable/public/userfiles/file/60512596652.pdfIn PDF document text
- http://uptownherndon.com/uploads/files/73661476714.pdfIn PDF document text
- http://portalcom-b2b.es/img/user///file/_0386802001620224388.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/fa50f4ad541e3d863fab7a63be6d06d9/64956716497.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611574bcc1b50---68824120836.pdfIn PDF document text
- http://opusincertum.it/userfiles/files/95523888603.pdfIn PDF document text
- http://daoltrading.com/userData/board/file/didukesiwupezisavabixawi.pdfIn PDF document text
- http://taumed.kz/upload//2021/08files/210808203638804421j0f6x.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5e3d5209e---diloxad.pdfIn PDF document text
- http://dorp.pl/userfiles/files/64878930093.pdfIn PDF document text
- https://poulinstrapscan.com/userfiles/file/wetuvegipositojemowesuna.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081f0280aec8---34923086486.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+install+save+game+need+for+speed+underground+2PDF 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_off0000ec7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC7C | 11204 bytes |
SHA-256: b1cdc5eeac48482f29f57064ad11b7c6d077570429324ff7cb4730f4fe0d11a7 |
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font_01_sfnt_off0001068e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1068E | 17536 bytes |
SHA-256: f3c7b2cc6d66fcc6b851a1fa4ad289c6c64ee868950aea23c14393302a57fa9f |
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font_02_sfnt_off00013420.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13420 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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