MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple external URLs, several of which are hosted on compromised WordPress sites or disposable domains. The presence of embedded URLs and the heuristic 'SE_QR_LURE' suggest an attempt to trick users into visiting these sites, likely for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://drafthe.ru/uplcv?utm_term=android+9+pc
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b2f8d9354---35410102181.pdf
- https://liur-krd.ru/userfiles/file/36216008768.pdf
- http://primeasset.hu/fileok/file/fipazozepaworofegev.pdf
- http://sporteambiente.it/ckfinder/userfiles/files/90771523406.pdf
- http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/72194353417.pdf
- http://casaledellasignora.it/userfiles/files/97392147252.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161418597b2dd4---56962256726.pdf
- http://china-engine.net/ckfinder/userfiles/files/89271779561.pdf
- http://dongkoo.com/uploads/editor/files/xeguwexumow.pdf
- http://progettogeometra.it/userfiles/files/suwagitulenivolek.pdf
- https://heart-calligraphy.com/uploads/files/202109070244138645.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba253be070---fupedanumata.pdf
- http://hamkr.com/userData/board/file/rupijo.pdf
- http://ammk.sk/userfiles/file/vagevijedozigov.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/4d62950785c8f71005647142b4c3ba41/43967784737.pdf
- https://bisleriuber.genefied.co/ckfinder/userfiles/files/48267321187.pdf
- http://topenglish.sk/app/webroot/gallery/files/fewaderugusaxif.pdf
- https://abyway.lv/images/ck_images/files/woxorowobabuxo.pdf
- https://barcelona-health.com/files/galeria/files/tulowurise.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/09a6aa176261b0e2b1140149864319e5/87653966215.pdf
- http://kochamsushi.pl/UserFiles/file/loxotuwozevagizub.pdf
- https://hkpefa.org/editor_upload/file/45096954397.pdf
- https://lifeteacher.tw/uploads/files/202109092229373926.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/ec31ca560d28948004ddc58d478f1f5c/50551317217.pdf
- https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/xixewujetugobatatitu.pdf
- http://agierresrl.it/userfiles/files/xarubatevu.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_off0000df36.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF36 | 16792 bytes |
font_01_sfnt_off0000f748.bina10a865bed3b3afd57b8fd73977d6de482ba7b4081aab6820a041a24740233a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF748 | 18160 bytes |
font_02_sfnt_off0001263d.binc4c3e23dc888fa70fd6cbe5358385dc9e76ad9ecadd88776cd1b897470fdca20 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1263D | 10048 bytes |
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