MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous embedded URLs that point to compromised WordPress sites and other disposable hosting, suggesting it functions as a link farm to distribute malicious content. The primary purpose appears to be directing users to external, untrusted sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://synerhu.ru/uplcv?utm_term=enneagram+and+jungian+archetypes
- https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3c10c2d53ee460b999a611db60f2b43c/kiludowujevorabo.pdf
- http://theemasternetworker.com/ckfinder/userfiles/files/13108630495.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b523a641727---jidepego.pdf
- https://brod-plovdiv.com/images/98656473779.pdf
- http://uforoi.com/app/webroot/uploads/files/sixanuwoko.pdf
- https://manuscripthandler.com/userfiles/file/wuwefenufu.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/l9e7m4pkvmp39ie4snuso4df41/55478492564.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160907f8d34be7---jozozaponozapa.pdf
- https://mebelihome.ru/upload_picture/dopidifirigi.pdf
- https://big-affaires.com/img/pics/files/dikedavibajejugukazurufon.pdf
- https://zlatartopalovic.rs//files/komumotusijulimofadulezi.pdf
- https://alquimia.in/admin/fckeditor/editorfile/xujivifajabedutu.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/ido1dn5nrt3csepvpsrl1kcmsl/60907001456.pdf
- http://tfforming.ru/d/files/2341135920.pdf
- http://clubselectionvoyages.com/images/file/xovigilov.pdf
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/160db8d37a3f42---rigivivuz.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095851669f1d---43000105074.pdf
- http://mnogonomerov.ru/uploads/file/wuxiboxis.pdf
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/0b88aa34aa083ad0c0c6868939dfa75c/74306407118.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081123341301---pireferavuvut.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9a7fc202dd---safekoma.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_off0000fe4f.bina2c40c76b486eeba86f9e0229ed5c0797b6c8226fb8e3fcdd125e0728ad59160 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE4F | 17480 bytes |
font_01_sfnt_off00012c65.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C65 | 16792 bytes |
font_02_sfnt_off0001447c.bine5b3ba579ab4f7da29a76dd6087dbcb0eaa2809e0151ff9f544328c21b5d5409 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1447C | 11120 bytes |
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