MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The document also features a large number of external URLs, many of which are hosted on disposable domains, suggesting a link farm or phishing lure. The presence of JavaScript and numerous links indicates an attempt to redirect the user to malicious content or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://bywuf.org/upload/editor/files/wopuzapifusakexunagebu.pdf In PDF document text
- http://agrobud.net/uploaded/file/46825824881.pdfIn PDF document text
- http://abwalabamaave.com/uploads/files/jeworit.pdfIn PDF document text
- https://hamzakocakoglu.com/userfiles/file/14562845536.pdfIn PDF document text
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/fibarub.pdfIn PDF document text
- https://telewebmarketing.com/FCKeditor/file/37011212234.pdfIn PDF document text
- http://www.hebrewforreadingcomprehension.com/content/febotuwusoluredun.pdfIn PDF document text
- http://hsi-international.com/ckfinder/userfiles/files/rifakejikojomadoxabifodow.pdfIn PDF document text
- http://karlsbach.de/userfiles/files/wexefa.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/739cdc06cc09f861c99e0f1c9952fd3e/wugiwewebupuribixunuja.pdfIn PDF document text
- http://sartoriaventurini.com/userfiles/files/perobelitelofonu.pdfIn PDF document text
- http://duancanhotot.com/upload/files/domosimid.pdfIn PDF document text
- http://consade.com/userfiles/file/pitutolulesabapoged.pdfIn PDF document text
- https://camelcarpet.org/d/files/vimixef.pdfIn PDF document text
- http://mtjjt.com/2013/upload/article/files/2109301509215814218btbf.pdfIn PDF document text
- http://madmojo.com/fckupload/file/furipodu.pdfIn PDF document text
- http://ez-surveying.com/htdocs/cljr/data/files/zuxiganokatulogalade.pdfIn PDF document text
- http://terhautz.com/upload_files/files/68031831074.pdfIn PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/7b02f9b38db4b8faa12e1ab1b1d8773f/jijinene.pdfIn PDF document text
- https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/vixupa.pdfIn PDF document text
- http://www.taimaobi.com/admin/ckfinder/userfiles/files/88971415465.pdfIn PDF document text
- http://a1climbing.com/userfiles/files/19883723184.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=fifty+shades+darker+full+movie+free+watch+onlinePDF link annotation
- https://cakamuzejs.riga.lv/ckfinder/userfiles/files/26821010389.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_off0000b625.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB625 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ce37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE37 | 18548 bytes |
SHA-256: 286afab20555868bbd3bc2094b2c75df78d63fa11f93a4f9e576485f82d7fae8 |
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font_02_sfnt_off0000fe21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE21 | 11176 bytes |
SHA-256: 4c505e92a0fc3f4cd8c9b07da1557ae84a58cf49ffbf7a416024c76c243a3931 |
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