MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of malware. The document contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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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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 https://laborke.ru/uplcv?utm_term=ionic+and+covalent+bonds+worksheet+answer+key PDF link annotation
- http://slsnn.ru/content/file/92666816718.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dea540bd5f8---xovenigajujavakugija.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/b6g9si6eng5alahgbhbdr1adtn/68675335126.pdfIn PDF document text
- http://abacusnancy.com/userfiles/file/69351674101.pdfIn PDF document text
- http://yule-sign.com/upload/editor/file/20210722141017.pdfIn PDF document text
- https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/43860441111.pdfIn PDF document text
- http://chaodontuonglai.vn/uploads/ck_upload/files/taminik.pdfIn PDF document text
- https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608e832e0fa34---64981890281.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/c0qjibbqrbj47rqd3moflcpteo/tatad.pdfIn PDF document text
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/8237d02082b4f6c6da7d77d2ce4e80ec/gutizam.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/96b7c650b3bfd14b0ab9c0bffa827805/65649979798.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/161061e8b0991e---romoweka.pdfIn PDF document text
- http://hzjksj.com/images/upload/File/68593127435.pdfIn PDF document text
- http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/89489970156.pdfIn PDF document text
- http://funperm.ru/content/file/peninumumefitalab.pdfIn PDF document text
- https://cepatdaftargroup2.com/contents//files/95624088599.pdfIn PDF document text
- http://lasfyy.com/uploadfile/file/20210716003031206.pdfIn PDF document text
- https://mimpishio2bet.com/contents//files/12162663953.pdfIn PDF document text
- http://studiopignotti.it/userfiles/files/64947749341.pdfIn PDF document text
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/86eff448ee8e959aabac6798b7036014/86923419574.pdfIn PDF document text
- https://songhong.info/userfiles/file/fulibunaganuripozadatel.pdfIn PDF document text
- http://huerural.com/uploads/image/files/80394944422.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210723_EB09E2C7E81787A8.pdfIn PDF document text
- http://asianaccounting.com/admin/fckeditor/userfiles/file/42057886040.pdfIn PDF document text
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e37dd6cc8---rivufanogiwufuxum.pdfIn PDF document text
- 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_off0000cd72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD72 | 10916 bytes |
SHA-256: b5fa5c64457723f11499a119670217c6a23029c4c62de855924ca82e22a5a385 |
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font_01_sfnt_off0000e6bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6BF | 16080 bytes |
SHA-256: 17d16fd8c1c3da31e57451b3d8128c37d4a6d8c21b9805541e7f9a6242f9c851 |
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font_02_sfnt_off0001104c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1104C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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