MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites. The ML classifier strongly indicates maliciousness. The primary function appears to be acting as a link farm, likely to manipulate search engine rankings or distribute malicious payloads via these compromised hosts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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=ghost+of+tsushima+cooper+clan+cosplay+trophy
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16086d82e2dafe---bokufotutumoxamexu.pdf
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/sf7bakep6ujueedhsrq6ltaku2/42593403637.pdf
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608467671c5cf---luwamamodowaxu.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b9879c3f939---36209217308.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ed271c224---guwosopibunujuxodiwixat.pdf
- http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/gasorivenazurawajexoriz.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/fde9b56c2e39b99ffa0eda199b319def/64282865567.pdf
- http://abpaluso.com/upload/file/kakesetavakegujimiwivuz.pdf
- http://inlovehuahin.com/file_media/file_image/file/96442103885.pdf
- http://steakclubhn.com/campannas/file/jakivuwek.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c16e3596922---zozipu.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab9ee5740fa---64806823703.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16098889815452---joxajutorubezivija.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/4b49c2fb0eb1eea7d5b2cc1895be4807/98339686082.pdf
- http://championshipsportsrings.com/clients/23492/File/19045836791.pdf
- http://m.miwon.com.vn/app/webroot/uploads/files/52231852539.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d52c9a6ae1---90358184325.pdf
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/7ebb7e94d38cb33199babd57055777ff/jawexeluga.pdf
- https://twfern.org/upload/ckfinder_temp/files/20210610114817.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a84e76a50f8---28245378284.pdf
- https://go2germany.ru/files/file/47997214750.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_off0000e1ba.bineba2dd7e587bec107a3dd24205ba0766a587053d261e46c7e8ca06bc0b459698 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1BA | 10996 bytes |
font_01_sfnt_off0000fb30.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB30 | 16792 bytes |
font_02_sfnt_off00011342.bin2ea32377bb781ffb1408ca4d758c02d34b87c8e5aec08ff3696d86327e041f84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11342 | 16612 bytes |
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