MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm pointing to numerous compromised WordPress sites, which in turn host other PDF files. This suggests a campaign focused on SEO manipulation or distributing malicious content through a chain of compromised resources. The ML classifier strongly indicated maliciousness, and the heuristics confirm the presence of external links and a link farm structure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/qod1h966495terei0jf5dh4tme/72538825874.pdf
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609c29211ac42---20038301082.pdf
- http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608692930408a---74797896729.pdf
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a8e678eed3---93507582260.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/9ugagmt4a6051urk333pb0nhlb/7488217107.pdf
- https://hagabb.ro/ckfinder/userfiles/files/640955369.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/lmj8j3nfb4albv58gb8obk3tr3/20056792541.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f534f1339---67877953434.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/6qi63v8ouugb5k6iih9taqes13/sozupewaw.pdf
- http://studiomuraca.eu/userfiles/files/23321236763.pdf
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/ol86jbicdlcvgh2b45021dju7u/sapanajafudaxolon.pdf
- http://theettiaresottawa.ca/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/66731094823.pdf
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b658d35125e---legufuxenojixafiku.pdf
- http://alexlunacoach.com/img/editor/file/78391486413.pdf
- http://msamerica.net/clients/873634/File/12466543883.pdf
- https://planet-for-events.de/userfiles/file/venasak.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa49b6a167---dodizepuzugugelunixu.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/73be196d780681109928fcea5692b8f4/sukomotogowutifuwoku.pdf
- http://sb-78.ru/files/file/3014114177.pdf
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1608045d326240---wazovab.pdf
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/4kf615a345rhv56rlqevqagfaj/durimu.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160987a0dbabd5---seledalilumi.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/e54953a5a633aff4e36c4481ec13fe11/kukefiwu.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc751a53e2---63186809378.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=veryfit+for+heart+rate+download
- 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_off0000e832.bin9716370d3ef1b619f9305e8b389495988a9ec8e8a06b268389e6e554e39a4ff2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE832 | 10452 bytes |
font_01_sfnt_off0000ffe9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE9 | 16792 bytes |
font_02_sfnt_off000117fb.bin5dc3dc037b3d8e3a4c597a180b548d1748de5ae90ae38a773b252e95426d7329 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117FB | 16720 bytes |
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