MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of numerous external URIs, including those with UTM parameters, further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://oniceh.ru/uplcv?utm_term=solar+radiation+sensor+pdf PDF link annotation
- https://alakharia.com/public_html/userfiles/file/tagifuv.pdfIn PDF document text
- https://www.casestilistas.es/ckfinder/userfiles/files/45513342420.pdfIn PDF document text
- https://corianderedmonton.com/ckfinder/userfiles/files/42018381698.pdfIn PDF document text
- http://massageindex.nl/images/uploads/ruvibijiwarerirafimo.pdfIn PDF document text
- http://21cedu.com/pds/userfiles/files/80022176289.pdfIn PDF document text
- https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/27412220794.pdfIn PDF document text
- http://www.heksan.com.pl/file/movon.pdfIn PDF document text
- https://alshamiltrading.com/alshamilfiles/file/4098324482.pdfIn PDF document text
- http://aftckwt.com/uploads/file/mizotonepuxunixuz.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160825c4493988---12054854099.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/e017297118d211e42e59ed7a0bd54f57/76842501019.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081c200b812a---porovefejopavelumolupu.pdfIn PDF document text
- http://abw10thstreetne.com/uploads/files/84812828465.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/larubebojenogivo.pdfIn PDF document text
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/5ea840d976d75f5223493154a68ea1d6/sebesizevumuxuduni.pdfIn PDF document text
- http://interwork.sk/userfiles/file/200858695.pdfIn PDF document text
- https://audreyheselmans.com/_files/file/xevideluxisaxiri.pdfIn PDF document text
- https://akapacha.com/userfiles/file/ramoso.pdfIn PDF document text
- http://dynamic1984.com/user_file/file/nabitizifizarefewirasi.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16093bd4ed9ddc---dagat.pdfIn PDF document text
- https://www.edmcenter.xyz/ckfinder/userfiles/files/52246934302.pdfIn PDF document text
- http://jpind.pl/userfiles/file/16152603986.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160739a23a7e0e---15826278182.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160776bc438379---dadukaduxejofubeba.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_off0000d100.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD100 | 17548 bytes |
SHA-256: 3ac0e16063bffa6e333515cb8cfec156268012ef807dfdf0944105aa23509548 |
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font_01_sfnt_off0000fe27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE27 | 10564 bytes |
SHA-256: ce603a0533b69e689a2b12b356be16bad6b949901e5b59a1dfa0f649acdca7f6 |
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font_02_sfnt_off00011646.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11646 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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