MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics further supports the attack pattern of luring users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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=ps+suite+user+guide PDF link annotation
- http://richmediahouse.com/admin/uploads/file/dowowenugoxib.pdfIn PDF document text
- https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/36823797718.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/1614756be3f449---48138578169.pdfIn PDF document text
- http://meta-min.com/files/rozidibeba.pdfIn PDF document text
- http://hyunshin.net/userfiles/file/forofirav.pdfIn PDF document text
- https://plentis.eu/ckfinder/userfiles/files/pipojofexisu.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161533c1a48119---furosivexoginuk.pdfIn PDF document text
- https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/42758916447.pdfIn PDF document text
- https://delcinfo.ru/img/files/files/30043092350.pdfIn PDF document text
- https://ipssecurityconsultants.com/ckfinder/userfiles/files/57939808779.pdfIn PDF document text
- http://markjfox.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/susupikemenamefirejubizub.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/2dfa076001e9eecbab473c0a8717e590/bufoluvevekunimutu.pdfIn PDF document text
- http://relaxzenter.com/uploads/files/59182695514.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161494d50b865c---kepar.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/50297055331.pdfIn PDF document text
- http://secureyun.cn/uploadfile/file///2021092217460066.pdfIn PDF document text
- http://kpotplace.com/uploads/files/radufagawetet.pdfIn PDF document text
- http://mmckno2010.zkosuchdol.info/files/15783610957.pdfIn PDF document text
- https://amoslodge10-org.alljobsinliberia.com/ckfinder/userfiles/files/4865239639.pdfIn PDF document text
- http://straub-online.ch/userfiles/files/53828726303.pdfIn PDF document text
- http://jongauger.com/userfiles/file/nomofibamubexe.pdfIn PDF document text
- https://zoldlaptop.hu/ckfinder/userfiles/files/movapufefesikifap.pdfIn PDF document text
- https://remini.hu/userfiles/file/69997733869.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/30047ea2ee2a9de8396e555da4e81ea9/20671210956.pdfIn PDF document text
- http://www.tm-africa.com/beta/public/uploads/cms_filescms_files/9337739003.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_off0000b394.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB394 | 17800 bytes |
SHA-256: c1e783ea05bc7e54bf7680047b130f0db33cfa99be58a2e33fd06e14870cedf4 |
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font_01_sfnt_off0000e0e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E3 | 10092 bytes |
SHA-256: ebc434a84547b77eb8bb419c7a9be3d6c804084439536f28f22907c8b5471a2b |
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font_02_sfnt_off0000f755.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF755 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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