MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI and link farm heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.7511
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 https://coretry.ru/uplcv?utm_term=whatsapp+backup+apple+android PDF link annotation
- http://portamarioarchitetto.eu/userfiles/files/funid.pdfIn PDF document text
- http://mega.kz/media/upload/files/pemosawepizesu.pdfIn PDF document text
- http://kammed.com/userfiles/file/sawasibazomos.pdfIn PDF document text
- http://printific.com/images/contentimages/files/85279918100.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/3cad39d7bce1e8b896eb04dc87d38c87/mapofewomox.pdfIn PDF document text
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/70e65ee24b4fbcfe23bde7485acc2492/togetoletil.pdfIn PDF document text
- https://dalilak1.com/userfiles/file/magusonoxinavofiridoxis.pdfIn PDF document text
- https://vpmemorial.net/images/file/verasolofeketixe.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132df3a145b2---39989304977.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4123b3561---22179002748.pdfIn PDF document text
- http://tuttotop.com/userfiles/files/gexadalabilibikusube.pdfIn PDF document text
- https://chataigne-cevennes.fr/imgs/files/duxobopawofima.pdfIn PDF document text
- http://aeusjtu.pretty-match.com/upload/files/ganev.pdfIn PDF document text
- http://www.yeosung21.or.kr/ckfinder/userfiles/files/1631259341.pdfIn PDF document text
- http://ekachaiguitarist.com/ckfinder/userfiles/files/36469459124.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613421a43a1cf---86314983428.pdfIn PDF document text
- http://sitarofindiamd.com/userfiles/file/28811893322.pdfIn PDF document text
- http://fence-alarm.com/userfiles/files/21076769926.pdfIn PDF document text
- https://everestart.com/images/stories/file/47430953111.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ef9350358---27848614510.pdfIn PDF document text
- http://landpas.pl/upload/file/welenusorajesevasu.pdfIn PDF document text
- http://gcoekmr.org/cukashmir/User_Files/imagefile/10319507834.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/pinuvijazata.pdfIn PDF document text
- https://mayxaydungthienlong.com/uploads/files/files/36025498942.pdfIn PDF document text
- https://mlspoland.co/files/file/vefigerakiwovovofadozabod.pdfIn 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_off0000ecb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB9 | 16536 bytes |
SHA-256: 7b5fdb7d34c0ecca96ff9aaf0a48cbd32cc3559a7e18d2f56f359b2cd349535d |
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font_01_sfnt_off000117c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117C0 | 10936 bytes |
SHA-256: a287220a1ba3f0238c8a7b586780ed65e3bc119ce1af72c01c2cfd79730840d1 |
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font_02_sfnt_off000130d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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