MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed for SEO manipulation or redirection. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent to redirect users. The presence of embedded JavaScript suggests potential for further malicious actions beyond simple redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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://vanxuantravel.com/upload/files/26495610771.pdf In PDF document text
- http://cherishedmomentphotos.com/clients/8/84/84fe84b553acfcd191e166b7401b6f02/File/togumumodazafet.pdfIn PDF document text
- http://orvosvalaszto.hu/uploads/files/29742225217.pdfIn PDF document text
- https://jamurgoreng.net/contents//files/52862621652.pdfIn PDF document text
- https://soyana.de/js/ckfinder/userfiles/files/59241417255.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/6dd0fcd8cb6eb50737692e3bac9d088c/rupevifawozuba.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606da668436a4---vilejavodubate.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16075c75772ef1---mutik.pdfIn PDF document text
- http://lso-msm.fr/userfiles/file/wupakobujameludukuroj.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-6-18/20210618122452823075.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f98a570b7---47037153857.pdfIn PDF document text
- http://clinicoral.com/img/userfiles/files/51507745903.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1610d513288af6---77435760560.pdfIn PDF document text
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/f3c9665243ea8168bf7831ee1162019a/kavewew.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-6-10/20210610033245982786.pdfIn PDF document text
- http://industrialdevices.in/uploads/vivabiwofimagafe.pdfIn PDF document text
- https://minervatech.work/js/ckfinder/userfiles/files/wowesuzakuxitivo.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/c8d675d4b096594e333989a23cf19f2f/18522745287.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b7b268a72---36428607514.pdfIn PDF document text
- http://alliance-ltd.com/userfiles/9005941887.pdfIn PDF document text
- https://plentis.eu/ckfinder/userfiles/files/muresaludejenesodafeke.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab0e759ffb---25558321999.pdfIn PDF document text
- http://ccshecea.org/upload/files/16091751667.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607a27ae11e6d---4561124919.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=fun+sight+word+worksheets+for+first+gradePDF link annotation
- https://mediacentre.aerlingus.com/js/ckfinder/userfiles/files/ganipovarir.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_off0000df98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF98 | 10844 bytes |
SHA-256: 749eed70b4a34ca86257b90578a183bde97f2105ef1ff14a65ada3830889cbf3 |
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font_01_sfnt_off0000f873.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF873 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011085.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11085 | 18872 bytes |
SHA-256: 76ddb8f1110eb4404f806a5b7c9ccf1efbe25080336262e15ceea6fd2c67637d |
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