MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://inwebjor.ru/uplcv?utm_term=cogeneration+plant+how+it+works+pdf PDF link annotation
- http://ntep2008.com/UserFiles/File/63154178822.pdfIn PDF document text
- http://kaitosushisb.com/uploads/files/66770374368.pdfIn PDF document text
- http://philipsphotographystudio.com/83173626009.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210719122052678.pdfIn PDF document text
- http://smepil.com/ckeditor/userfiles/files/71340971559.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa37fbb1fa---54924569926.pdfIn PDF document text
- http://orderkiwicafe.com/uploads/files/jakijodinowilifafebubug.pdfIn PDF document text
- http://195exim.com/datas/files/rifulivarew.pdfIn PDF document text
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea734214f2---45180222886.pdfIn PDF document text
- http://monkey-do.net/userfiles/file/sijajitetofen.pdfIn PDF document text
- http://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/67142722811.pdfIn PDF document text
- http://55thocscompany.com/clients/62662/File/wizulax.pdfIn PDF document text
- http://rydelko.pl/userfiles/file/13337192888.pdfIn PDF document text
- http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f4cf0b12b---79631902208.pdfIn PDF document text
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/f56f10e07ce73cac25ecf2f1e20083e0/65521437465.pdfIn PDF document text
- http://dgjinhak.kr/DATA/upload/files/202108220951561557.pdfIn PDF document text
- http://aptchasers.com/FCKeditor/userfiles/file/vasidimusasovawesitotes.pdfIn PDF document text
- http://hollandunitedreunion.com/clients/5/52/52f3fdf721cdccceb566e47094f1d9de/File/kitumamefuduxitexewusi.pdfIn PDF document text
- https://znalac.com/userfiles/file/43915361633.pdfIn PDF document text
- http://zoldjogsi.hu/uploads/files/86307619478.pdfIn PDF document text
- http://juliesfundforkids.com/clients/d/d6/d6f17a7a4e9d342a12f8f8eeddb80b2d/File/vuluvasokugakimasijoma.pdfIn PDF document text
- https://mebelihome.ru/upload_picture/42204777007.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_off0000cc65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC65 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e477.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE477 | 17656 bytes |
SHA-256: 1ccd2e32f12959c8ebcda5579a3899f1d4a100581f3dc325911486126c606eb2 |
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font_02_sfnt_off00011227.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11227 | 10984 bytes |
SHA-256: 4e4aa5017e934df1491ccb946cc4c4c555be740f45ccfdce6a09662e0f8f67c8 |
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