MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document contains a large number of embedded URLs, many of which point to compromised CMS upload directories or are hosted on disposable domains. The ML classifier strongly indicated maliciousness, and the structure suggests a link farm designed to redirect users to potentially harmful content or to manipulate search engine results. No scripts were extracted, but the overall pattern is indicative of a malicious document designed for redirection.
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://smidgel.ru/uplcv?utm_term=carnivals+near+me+with+rides+2020
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b991032cf8d---gojepulesibowebive.pdf
- http://elcampoeco.org/FCKeditor/file/donim.pdf
- http://status-go.net/gfx/userfiles/files/9763868605.pdf
- https://bjsteelvietnam.com/upload/fck/file/61715692879.pdf
- https://clubforeducation.com/FCKeditor/userfiles/file/besomofinidezanum.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/15fba198a0b869b5c96e77f7b49a9e02/45708371870.pdf
- http://aelma.com/sites/default/userfiles/file/wilixupazezufenewiriwug.pdf
- http://vonkoenigsmund.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7d46cd5a4---tijomadisabososijubikone.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ae044442eeb---suzez.pdf
- https://aiaciran.org/cache/fck_files/file/vidukudikexe.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/3703dbde19d29c0bdeea3472bc80f97b/feseva.pdf
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/f2f40f3c155b7fe3716b344a6c79bf50/72314464461.pdf
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/8d847265413a0a39692fc8e741c3b6f1/fewojotupotutozumavutiw.pdf
- http://prestopc.it/upload/file/5281746558.pdf
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8a0df005f---kagotiluviduxoguti.pdf
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/8a77f4177f9a421b59eef30b2ace8c37/bakulibofuwabixixiz.pdf
- https://planet-for-events.de/userfiles/file/xuselaveki.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/16074dbaf42b50---gimutobodowuxadutibif.pdf
- https://leosservices.com/userfiles/file/boralupakivafinirifexu.pdf
- http://kasargod.net/uploads/file/68885311974.pdf
- http://sheeld.org/clients/d/d0/d021426cee8527c21a172be12ef3d645/File/33712911756.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160897055ecb07---76783673943.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/krbl72iurnvr3shjsf0klokifg/nokolurugodarofut.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16071d3c59828f---56546976951.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_off0000d9a2.binf35ad5a50e8738699428a7f2fe0418d7e99dd853e48fe3780adf2e1d800899e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9A2 | 16716 bytes |
font_01_sfnt_off0001053e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1053E | 16792 bytes |
font_02_sfnt_off00011d55.binb7e849cc50322794100b7cf8f81ed18d8ada71127758a4aa24640595fce5f3bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D55 | 10820 bytes |
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