MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as a phishing trojan by ClamAV and flagged by an ML classifier. It contains numerous external URIs, many of which point to PDF files hosted on distinct domains, indicating a link farm. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests the presence of command-line execution indicators within the document text, likely related to the exploitation of the PDF format. No scripts were extracted, but the overall structure and detection indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://jocafoto.com/fotos/file/81344799349.pdf In PDF document text
- http://rayocazar.com/images/elfinder-1.1/files/file/68478321215.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210913130510_wlkx7d.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/36810208829.pdfIn PDF document text
- http://portalpr-b2b.es/img/user//file/_0698899001630686337.pdfIn PDF document text
- http://car-zone.sk/data/data/file/zowadezowaxerolabom.pdfIn PDF document text
- http://musthighschool.mn/ckfinder/userfiles/files/76914018845.pdfIn PDF document text
- http://stringquartet.biz/web/images/fck/file/18661549563.pdfIn PDF document text
- http://picart-personal.pl/fckupload/upload/file/72019317499.pdfIn PDF document text
- http://hanauhrova.cz/files/purudukomuzusofepowuxabu.pdfIn PDF document text
- http://nirmalapublicschoolerumely.com/userfiles/file/4625551482.pdfIn PDF document text
- https://vitanov.rs/files/47694278716.pdfIn PDF document text
- http://architettoangeli.it/userfiles/files/3429473227.pdfIn PDF document text
- https://sonerofset.com/userfiles/file/38527182796.pdfIn PDF document text
- http://russia-ex.com/images/blog/file/9150237531.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///85404567345.pdfIn PDF document text
- http://raczcsalad.hu/files/18204177836.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/wumewefarol.pdfIn PDF document text
- https://perfectprojects.ro/userfiles/file/79863594834.pdfIn PDF document text
- http://cpghollywood.com/userfiles/files/67843530223.pdfIn PDF document text
- http://hosungtour.com/FileData/ckfinder/files/20210914_03EF992F3CA31163.pdfIn PDF document text
- http://qdcmd.com/data/files/36148658826.pdfIn PDF document text
- http://ketoanantamhcm.com/uploads/files/rafaso.pdfIn PDF document text
- http://tomgiongvip.com/uploads/files/file/korupexuxejo.pdfIn PDF document text
- http://ketoanantamhcm.comIn macro / runtime command snippet
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=how+to+transfer+pictures+from+android+to+laptopPDF 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_off0000d38f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD38F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eba1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA1 | 18992 bytes |
SHA-256: c7f0e55cdc0e709388cc2961e74805d7389d5611c5ce6347fac43990394f8faf |
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font_02_sfnt_off00011c53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C53 | 10956 bytes |
SHA-256: 7bf7d1a747ef9624063018a35accc1a7b9cda8ec1fdc8bd66c88cc0123db3b3a |
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