MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to numerous external URLs, several of which are hosted on compromised WordPress sites. The presence of multiple links, including one with a 'utm_term' parameter, suggests an attempt to lure users to potentially malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://irlanc.ru/uplcv?utm_term=cosigning+a+mortgage+for+your+child
- http://bfr-bialapodlaska.pl/userfiles/file/boguwixutimavi.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5935f51d46---81935917021.pdf
- http://charivne.info/images/file/55052767873.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bd18282ecf1---77531205046.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160adaf283cd4f---17965483935.pdf
- http://hhs63.org/clients/8/88/88ec95b665b56da82b1de85f097fba10/File/99960935890.pdf
- http://ankaser.com/userfiles/file/48569980222.pdf
- http://brilspa.ro/userfiles/file///25853340468.pdf
- http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20210702113709.pdf
- https://acryl-bg.com/userfiles/file/63074476501.pdf
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/16084983146.pdf
- http://chukgoobok.com/files/fckeditor/file/42382188863.pdf
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/59dc81fc59abc3983f40f51730a8409c/dutulivakiwodezu.pdf
- https://celebicatering.com/upload/ckfinder/files/75590759691.pdf
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/dbf31fbed97abb415c53bc07cf311c0a/gonukumowujilob.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/883953dc4880415e3dc001abf422a04a/filidixibodeguzalal.pdf
- http://drapa-technika.cz/UserFiles/File/gumoraledonofogavu.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9dadc275f---17180101562.pdf
- http://amoy-art.com/Upload/file/lameminiro.pdf
- http://sparkpro.lv/content/file/63475814643.pdf
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/a4c7ebfdc59f15a7631ed43360898b58/vupiginugofetuxudi.pdf
- http://jiuxingchaoshi.com/uploads/file/301412317487.pdf
- http://starrsgazette.com/admin/images/file/wuzokufoxapefedexego.pdf
- http://builderall.info/userfiles/file/2612550736.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_off0000ea85.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA85 | 16792 bytes |
font_01_sfnt_off0001029c.binf70aba0c058dfbc45a41fd185eb15614221f60ca349e5bdeec7a86dfcff8b63a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1029C | 11168 bytes |
font_02_sfnt_off00011c59.binb357b9fefeb74d6e209a4b2e2b7def5b0c55d126079b5e16b5ef604738d640a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C59 | 17516 bytes |
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