MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload locations and disposable hosting sites. The primary purpose appears to be redirecting users to potentially malicious content or phishing sites, leveraging a compromised CMS upload mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://krisoc.ru/uplcv?utm_term=3+types+of+conjunction
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a58e7947319---xewat.pdf
- http://e-sportis.com/images/upload/pubodejulagizefifosuzewe.pdf
- http://dr-onesrl.com/userfiles/files/donutag.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/e3110243f7edd970664e12e738b5dddc/61670818431.pdf
- http://lapenya.cat/imgjovesnaves/file/kopuk.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/dobabavuxamikowoje.pdf
- http://chalappuram.com/userfiles/file/nubapivadepuvig.pdf
- http://kleinschaden.expert/userfiles/file/lewekurogitabaweler.pdf
- https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/acc191ba121450dee6ef92b82d814b42/18248520837.pdf
- http://motorlustor.net/userfiles/file/rujaxapomezedibe.pdf
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/b152afd20df3067a3a7dca6806fb4c92/57245968277.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/c3o9drs0ha9kq2r6rpjfbpl0mc/tovowemaxoxumisar.pdf
- http://tutek.eu/userfiles/file/18422547722.pdf
- https://go2germany.ru/files/file/rawinoto.pdf
- https://tiklatakip.com/calisma2/files/uploads/54281920649.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/8b19e6ccb4a679801dd0f1475e0083c2/70720442762.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160aabc708450a---tajusesipajasaxes.pdf
- http://assushop.com/userfiles/assushop.com/file/62689344153.pdf
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/fc11fc8a23e31e35651b6bdbbb5614bd/fowukelizorowarekasi.pdf
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160afb90eda422---22949375669.pdf
- http://richfieldhighschool1969.com/clients/868116/File/xibiligelofilexamem.pdf
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa242e0a5f---82914970981.pdf
- http://alpha-cp.com/userfiles/file/sewudatanomum.pdf
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/3lj5k33s0vbbmnma0cfn1gvem6/29775585810.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609abcf500e9e---26218433800.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_off0000ed09.binab1b56e1479fdda822772c87c294c47cce5b11dc69ca558c8294f6b682983236 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED09 | 10584 bytes |
font_01_sfnt_off0001055d.bin90c5597abda98c2b06ff65ba053ccfe1a0de4e30071371bc7719fc66bb8575a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1055D | 16792 bytes |
font_02_sfnt_off000130d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130D7 | 16792 bytes |
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