MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to compromised WordPress sites, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple distinct hosts suggests a coordinated effort to distribute malicious links. No scripts were extracted, but the structure and URL patterns are consistent with SEO poisoning or redirector schemes.
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://queure.ru/uplcv?utm_term=how+hard+is+it+to+become+a+paleontologist
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609faa418e8c9---28097421370.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/74r6dbktbm6j9lfhjm2j7bfetb/jizojelawudep.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a241fc23721---weforagexepuj.pdf
- https://www.basur-tedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607280419cf3d---lutogazezukakilukak.pdf
- http://charivne.info/images/file/wugamemorugapu.pdf
- https://deniz-sogutma.org/img/userfiles/file/vaxobefobogir.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b87d7de96bf---55658467401.pdf
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/614d87fa0a76e9b1c0365f895943117a/76622518119.pdf
- http://clinicaveterinariailmarzocco.it/userfiles/files/tegajevunu.pdf
- http://didocrosby.com/imagenes/file/nuvap.pdf
- https://bookatowncar.com/userfiles/file/fekog.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/55fe5c06f2fa53d4808f8f2be461cfd6/80397905934.pdf
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0b347287b4---nomujunibuloka.pdf
- http://universalestetic.com/userfiles/file/mupatifodibotupokatezu.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd0f26d53e5---xifuxifunonukok.pdf
- https://binhvi.com/upload/files/sozugepowusuw.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a136af029e---55416410183.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/2c929d43953a37f0d090b877b1fc09d1/juromokajarusevubu.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a81c69a0644---84265339325.pdf
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/vhoqo7p6jgpbo36cpnebp7eodb/67937520843.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae7899cfd6b---79854172606.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a49ed27472f---44987283715.pdf
- http://nikacarpet.com/My_Project/Hamishe_bahar/ahar_img/files/18008319458.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_off0000f36e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF36E | 16792 bytes |
font_01_sfnt_off00010b80.bin0af9efdbbf82dd908ae4bafddadf1b9330efabd68fa32a0942ca05874be0f00a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B80 | 16692 bytes |
font_02_sfnt_off00013704.bineebc7db490ceb9b9536d3e5385beae3f118d2f42e32f9dc77532ff586f814d9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13704 | 11180 bytes |
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