MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and numerous external URIs, flagged by ClamAV as Pdf.Phishing.Trojan. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates it's part of a link farm designed to host many other PDFs. The embedded JavaScript likely facilitates the redirection to these malicious links, contributing to a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://laborke.ru/uplcv?utm_term=vivo+funtouch+os+theme+download PDF link annotation
- http://ventensis.lt/public/ckfinder/userfiles/files/93038494026.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161425220a0cfd---31251273687.pdfIn PDF document text
- http://ahjygjg.com/upload_fck/file/2021-9-19/20210919190408158197.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/bb626ec990d4d17ebee50789fbdd11b0/30663381101.pdfIn PDF document text
- http://www.kevimotor-rock.hu/files/files/60234290092.pdfIn PDF document text
- http://baaningdoi.com/file_media/file_image/file/lazizuparujuranedetos.pdfIn PDF document text
- http://zjbfjt.com/upload/files/98546097604.pdfIn PDF document text
- https://signika.pl/Upload/file/dinubuwatafeb.pdfIn PDF document text
- http://bakefruit.com/uploads/files/202109070136158802.pdfIn PDF document text
- http://m2m2design.com/userfiles/90459439420.pdfIn PDF document text
- https://bizimpin.com/calisma2/files/uploads/ramuxopudevadulezozum.pdfIn PDF document text
- http://charontrade.hu/data/file/53044262689.pdfIn PDF document text
- https://fishboat.hr/files/76441054810.pdfIn PDF document text
- http://neilreardon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mavebasowaxemimaju.pdfIn PDF document text
- http://britishcytology.org.uk/ckfinder/userfiles/files/57469194250.pdfIn PDF document text
- http://chenruichem.com/upload/files/7796810766.pdfIn PDF document text
- http://zoldjogsi.hu/uploads/files/dazile.pdfIn PDF document text
- http://lokalsport.no/userfiles/file/54579835661.pdfIn PDF document text
- http://fuguchair.com/upfolder/e/files/20210908122629.pdfIn PDF document text
- http://www.polni.si/Images/files/36922095298.pdfIn PDF document text
- http://naasschoolofmotoring.com/fckeditor/userfiles/file/dulad.pdfIn PDF document text
- https://akproauto.com/nbloom/fckuploads/file/nerowokoratisobope.pdfIn PDF document text
- http://mastrodibaglio.it/userfiles/files/18631734995.pdfIn PDF document text
- http://receptlap.hu/files/nakum.pdfIn PDF document text
- http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/tudaferolakojabowuzesu.pdfIn PDF document text
- https://o2opr.co/userfiles/files/putebow.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_off0000d75b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD75B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF6D | 18596 bytes |
SHA-256: 6fd93e9be63cdf40647267cbd4dd3e1418ca593abcc9c8d8be37d12466421804 |
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font_02_sfnt_off00012041.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12041 | 10860 bytes |
SHA-256: f7cade9ca061933599c1c99fe6e27af7cbf1b28a5a705a820449dc430b6c07a3 |
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