MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document that contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm for phishing or malware distribution. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's content is designed to trick users into installing malicious browser extensions or updates. The embedded JavaScript likely facilitates this by attempting to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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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 http://abwcockeysville.com/uploads/files/tirofewejozilid.pdf
- http://eldmsh1.ru/js/ckfinder/userfiles/files/75367642356.pdf
- http://archissimo.eu/userfiles/files/42676116234.pdf
- http://floralojistik.com/userfiles/file/bovazebumu.pdf
- https://siliconautomation.com/userfiles/file/merupeduxewabixebix.pdf
- http://cokhiminhhien.com/media/ftp/file/51494949087.pdf
- http://opersan.com/file/77448587772.pdf
- https://rpdev.org/ckfinder/userfiles/files/folevexegenizumuxunipop.pdf
- https://keongracun.org/contents/files/18793628200.pdf
- http://mezon.jp/userfiles/file/wivexuv.pdf
- http://pcccmiennam.com/media/ftp/file/79128114180.pdf
- http://kyea.org/imageuploads/popuji.pdf
- https://hsiaoying.com/userfiles/file/lunipazigux.pdf
- http://abwingsde.com/uploads/files/vitedijidovija.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/1c032baeaed6606a23e7f308eb86a6ba/37292587414.pdf
- http://beamstraffic.ae/amb/userfiles/file/1244501705.pdf
- https://avela.md/userfiles/file/rupusezajuxilotozekojo.pdf
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/3oinh30q3nfos1nsvubnnq99if/powipidefogejozetu.pdf
- http://soepcentrale-dekeyser.be/userfiles/file/wanelafamiviwipal.pdf
- http://okmarin.ru/userfiles/file/nodijazuxifoxaridum.pdf
- http://studio-castiglioni.com/userfiles/files/23614557622.pdf
- https://martabaktelor.com/contents/files/30955349063.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16140298fac9c1---todajalubidutodisubox.pdf
- http://rkmaster.ru/uploads/files/17379436536.pdf
- http://pyroglobal.sk/app/webroot/files/userfiles/files/33205809025.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=how+transfer+android+data+to+iphone
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f954.binbc67c5259fa829c79b26e7d72cb2705a28b8dd6582dcc451a6795f9b16a06a5e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF954 | 17508 bytes |
font_01_sfnt_off0001269a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1269A | 16792 bytes |
font_02_sfnt_off00013eb1.bindb1f7b7f42e85e3f54472cd080841f192d35c2ae1f9d35f5c5329bc872a885ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EB1 | 10628 bytes |
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