MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress sites, likely intended to host malicious payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically a phishing or trojan distribution campaign. Although no scripts were directly extracted, the nature of the link farm suggests it's part of a multi-stage attack, potentially involving embedded JavaScript or other exploit mechanisms within the linked PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/a8840cef93f00a6b579a609d6a5befe8/tofepawozubavideligivodo.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a213045b992---41097571792.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079adc52ccbe---zokovawawekoweguxiduvul.pdf
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160997b10214d3---mawugowuful.pdf
- https://fotoprint.lv/downloads/file/48076496126.pdf
- https://wita.lt/images/files/tivagikuvow.pdf
- http://hotelamadeustorino.com/userfiles/files/tanewubaz.pdf
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/fdrc6g036nmvq8aem3ibt8nro4/17864608358.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607fed1c79e2e---99512336706.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609d01a7011fe---86200307476.pdf
- http://sanzmendia.com/userfiles/files/fibokotagi.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/fc364cbaa657a3fde885dc8aba4f0f6a/wilafofexikixuku.pdf
- https://audit-advisers.com/userfiles/file/98657786566.pdf
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608719ea22558---68206641458.pdf
- https://gilbertems.com/videos/file/97631318600.pdf
- https://driftwoodcc.com/userfiles/files/janowesemimiwibutaviru.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/46a5112fe4a0cde70c893b748de85291/rowotadokerakunosezesibev.pdf
- http://goldmustang.ru/files/files/bomidagabatuvi.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a537ad4be53---rajuxolorepuresi.pdf
- http://oasis-inwaste.asia/files/file/54631052415.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160efda859c6f8---pibiboba.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/761cd053395b3d349b47cf7099edb6ff/zevoniduwesefokunivomex.pdf
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/19947879055.pdf
- https://noddy.nu/images/file/77309063885.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=knowing+who+i+am+in+christ+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_off00019449.bin12a0b190599e39e169ae5e8383d73bff3dbae8e51657b5f42c76d40e890b8ffd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19449 | 10968 bytes |
font_01_sfnt_off0001ad6d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AD6D | 16792 bytes |
font_02_sfnt_off0001c57f.bin3a6f121415920bd25eb008434f5d401d8ac66b816a052f86006e4df06e39d4ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C57F | 17476 bytes |
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