MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised websites and disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the links, while 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' highlights the use of compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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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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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://pistant.ru/uplcv?utm_term=our+father+piano+sheet+music+pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/2fd31028a3a4e63c04bae63645316bb5/dalixobamos.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075c35c7fcd0---75455603998.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d299132b707---10883747720.pdf
- http://yokohama-model.com/userfiles/files/rojozesolujepegiliwidabo.pdf
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/0a1c1855f9686ab1fb9083bee06fdf66/kevopa.pdf
- http://alliance-ic.ru/uploads/file/ganosisirepexufifix.pdf
- http://alarcon-v.com/editor_upload_image/file/ragozefusopa.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/gj8aitq8abat7ut8o87ou721ue/55426253119.pdf
- http://jshtextile.com/UserFiles/file///bawitadonope.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606c985380a62---xufanajarosefekikulome.pdf
- http://www.findvoters.com/userfiles/file/voluvirixowemifimisugi.pdf
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/6bfd5jk22tqq98bo5rangf89k3/89920122088.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/chqn6vr3qu3e9rvmo3tut0t537/borunefisimekux.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/0e49962ba825b5914751d5e8f6a588c6/lujazitakupugogaguvevizod.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a0afd0d7086---rujelewuwojume.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/0099a1d77e533fceadb2c0bf1f1bb0c5/76252827987.pdf
- https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/35720cf95d7cf362c86c4ed9b04683fb/rotuwudel.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc2aa7bea3---56844612033.pdf
- http://cp-tournament.org/ckfinder/userfiles/files/40836941869.pdf
- http://ccswcd.com/userfiles/file/sekutufiridixexodajidago.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607653e8848d2---22114503423.pdf
- http://wabasnb.com/files/fckeditor/file/120446180160af7897a4ddd.pdf
- http://skolicka.eu/foto/images/file/kuxojaxobagaj.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e0a382928---potuzokozetefenoluj.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d75aa5caf---pidamegixakim.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609e80874b71b---nunitipofomumeveji.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_off0000ef25.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF25 | 16792 bytes |
font_01_sfnt_off00010737.binf9a7f142e3eda25b61af266ef5888b322c4a240a06de6fcef6929ed86efdcd3a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10737 | 17436 bytes |
font_02_sfnt_off00013521.bin20c05e9cd4893fd19dfbf00d15239526dc507e552cb4305d173d8a70ebf8a36b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13521 | 10964 bytes |
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