MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file identified as malicious by an ML classifier. It contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting domains, indicating a link farm likely used for SEO poisoning or phishing. The presence of multiple compromised CMS upload links and disposable hosting further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 5
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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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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://wastran.ru/uplcv?utm_term=post+occupancy+evaluation+meaning
- http://ruegen-ferienhaus-schneider.de/userfiles/file/timiw.pdf
- http://elcampoeco.org/FCKeditor/file/dologorirevifowiz.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160d87570ae84e---modom.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/pudatifefamib.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/ghsg9catejphcekhjc83qr7cmh/59465850242.pdf
- https://washlounge.in/ckfinder/userfiles/files/5476171546.pdf
- http://bangdientunhk.com/upload/files/2214202666.pdf
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/4230c3d27216c17908909666e5cc9745/56033428216.pdf
- http://kurier48.pl/files/userfiles/file/91466700761.pdf
- http://kayamedbursa.com/userfiles/file/14050817662.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160750bc0c4e4a---gigilivodosezo.pdf
- http://daotaoyduoc.org/wp-content/plugins/super-forms/uploads/php/files/4le4cqre2t2m04dg35kpndt5mp/70315160557.pdf
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850c415fc84---zefudopenikimaxibidi.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9b24be1c1---wifodeganitudibiravip.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/bb9cd58f05eb3012d20b0a228fb07d73/bataxi.pdf
- http://bigxra.com/uploadfile/file/2021062919173173499.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a3fdce6a4cf---55198701091.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6ae957dfc---30466505956.pdf
- https://stopserv.ru/files/file/8561511380.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/4f9b7dcbb185769712bb56b0999ee201/63157179852.pdf
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/42989519310.pdf
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/28566b283b6eeb27d97eb56e61b6ec81/folowu.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2a8ac22b8---morezeveturuwerum.pdf
- 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_off0000f0c5.bin6519de6bbebbefdf14477365503e32db152c14307f2d662b82308140082ea5b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C5 | 17604 bytes |
font_01_sfnt_off00011f28.bin297f373a7e339e344dbcebc41110b0133cb71f4a15fd0a77f2e65e046e953cd0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F28 | 10900 bytes |
font_02_sfnt_off00013880.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13880 | 16792 bytes |
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