MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as a phishing trojan and by a machine learning classifier. The 'SE_CLICKFIX' heuristic indicates the document instructs the user to press Win+R or paste a command into a terminal, a common social engineering tactic to bypass macro restrictions. This suggests the PDF is designed to lure the user into executing a command that would likely download and run a secondary malicious payload.
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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://pistant.ru/uplcv?utm_term=android+usb+tethering+no+internet PDF link annotation
- http://newbiesites.com/userfiles/file/63795035250.pdfIn PDF document text
- http://munnarinfo.in/userfiles/file/naxunefurepimaxazenujo.pdfIn PDF document text
- http://anquocrealty.com/uploads/image/files/votojofogitof.pdfIn PDF document text
- http://fsoa.cn/userfiles/file/78977462997.pdfIn PDF document text
- http://eia-edu.com/userfiles/file/46308212492.pdfIn PDF document text
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b568be1d96---rejorigadugodor.pdfIn PDF document text
- http://tonyprins.nl/images/uploads/file/vatesovot.pdfIn PDF document text
- http://bubb.cn/up_file/file/70982686927.pdfIn PDF document text
- https://dangeloremodeling.com/nbloom/fckuploads/file/navamuxito.pdfIn PDF document text
- http://pileki.com/imgup/file/11938223543.pdfIn PDF document text
- https://damsindia.org/admin/uploads/file/96570792204.pdfIn PDF document text
- http://coinproject.com/userfiles/image/file/lukefasojekevibadepazo.pdfIn PDF document text
- http://tomgiongvip.com/uploads/files/file/zorobowovunipasojapatuv.pdfIn PDF document text
- https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/73925682097.pdfIn PDF document text
- http://aldo-ins.com/userfiles/file/surobinofazogenaguxosezog.pdfIn PDF document text
- https://pharma-tools.eu/galeria/file/95710747782.pdfIn PDF document text
- http://zjgyuanhong.com/v15/Upload/file/2021911542593659.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16145cd59465b5---94159039275.pdfIn PDF document text
- http://chi-kara.net/Upload/files/98042035542.pdfIn PDF document text
- https://universal4shipping.net/userfiles/file/tusozadotavatibaganomo.pdfIn PDF document text
- http://pincesorvarshop.hu/editor_up/83898476564.pdfIn PDF document text
- http://sarica.com.tr/ckfinder/userfiles/files/pisajaxenolasimuwe.pdfIn PDF document text
- http://dienlanhtruongson.com/upload/files/86674753571.pdfIn PDF document text
- http://hamlineparkplaza.com/assets/amund/ckfinder/userfiles/files/13570865610.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/80128383539.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_off0000dccd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCCD | 10540 bytes |
SHA-256: a469490aff10b72c770777354679b75cbfbf74a433c75fd86e7595a5f2e2202d |
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font_01_sfnt_off0000f495.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF495 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ca7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA7 | 18788 bytes |
SHA-256: f90e54f3928806c45d12635ebaa46924e272a8c91ce5387925f6098573678a95 |
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