MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the presence of external URIs and the overall heuristic firings indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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.oteliapelsin.ru/ckfinder/userfiles/files/72693523155.pdf In PDF document text
- http://hadt.vn/upload/files/wajugofoxewuj.pdfIn PDF document text
- http://dailynewsodia.com/assets/ckfinder/core/connector/php/uploads/files/sajat.pdfIn PDF document text
- http://wsystem.sk/userfiles/files/52256582463.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/wejajebumube.pdfIn PDF document text
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/jimoti.pdfIn PDF document text
- https://artcorner-fiberglass.com/userfiles/files/88928091969.pdfIn PDF document text
- http://dakov.hu/_user/file/majijol.pdfIn PDF document text
- http://pantipplaza.com/userfiles/file/11449075699.pdfIn PDF document text
- http://e-menu.hu/editor_up/vaxanesobinalokuxedid.pdfIn PDF document text
- http://vetcasatenovo.it/userfiles/files/71698036546.pdfIn PDF document text
- http://viethanit.vn/hinhanh/file/dedukakuvabamorosaje.pdfIn PDF document text
- http://puntolinea.org/userfiles/files/96224180778.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613963f2b17bb---nodulokevezelot.pdfIn PDF document text
- https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/40574854688.pdfIn PDF document text
- http://portaldeaquidauana.com.br/ckfinder/userfiles/files/rumugipuwepasulijesetu.pdfIn PDF document text
- http://ledspectrumthai.com/ckfinder/userfiles/files/fuzoxefupa.pdfIn PDF document text
- http://lingeriedediva.com/UploadFile/file/2021090702181673499.pdfIn PDF document text
- http://fishtech.org/uploads/userfiles/file/file/84095453924.pdfIn PDF document text
- http://j-line.ca/fck_upload/file/22976376092.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/698bb2c9a948502b5671a61c442463a6/ginawajaberov.pdfIn PDF document text
- https://ms2gacor.com/contents/files/tawoxeranudipeji.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/03e87c74cbe125a2be113771cb9bedae/pizux.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/88fa0c96ea7a780917323fe595087fe8/latelegaxewenojebew.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=secrets+of+the+secret+place+free+pdf+downloadPDF 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_off0000b2b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2B8 | 10784 bytes |
SHA-256: 7c82cb2c58e0f1daec09a6769465ce9d004e438b40987b6edb7873d7e6963a1a |
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font_01_sfnt_off0000cb96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB96 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e3a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A8 | 15452 bytes |
SHA-256: 38c78c3d858c021bff21bf8e8b0cf4f4d78b328d6cbad4f59f988c240b84794c |
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