MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple compromised WordPress upload locations and disposable hosting sites. The embedded URLs, such as 'https://oniceh.ru/uplcv?utm_term=toyota+yaris+2013+user+manual', are likely used to distribute further malicious content or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://oniceh.ru/uplcv?utm_term=toyota+yaris+2013+user+manual
- https://vhssirimpanam.org/ckfinder/userfiles/files/16468974707.pdf
- https://corpeverest.com/ckfinder/userfiles/files/34338009120.pdf
- https://cristalparkhotel.com.ve/ckfinder/userfiles/files/ruxuxisemi.pdf
- http://berbun.com/user_img/file/60555685533.pdf
- http://gruppocinofilomarsalese.com/userfiles/files/pijidedux.pdf
- http://belean.pl/userfiles/file/jagofizawoz.pdf
- http://edanieltour.com/FileData/ckfinder/files/20210725_AF390934D6FD3568.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c432898e41b---50981926590.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/fb489b8fb09b7a3b99278a42c01983fd/55071829219.pdf
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1610079f5129e4---sodineperogiterevajabulu.pdf
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/dubepefuxotopumodi.pdf
- http://alexanderkanevskyartistbiography.com/clientMedia/file/digenosupakesoz.pdf
- https://alubiasdetolosa.com/files/galeria/files/13005743107.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612e22cb20ce9---6340938091.pdf
- https://aviseco.ro/userfiles/file/dojakoran.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b78bba3045d---delaxewapujokelikuzen.pdf
- http://mousike.it/img_ins/files/temuvamabijamate.pdf
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/9ea32fc98ae2ca3ca9b4cf8cca2f8aa9/wiranipodifujarivuwi.pdf
- http://urbanconstructions.org/images/uploadedimages/file/xejanurusosa.pdf
- https://treasurehunterdetectors.com/ckfinder/userfiles/files/84684361956.pdf
- https://creteservices.com/FCKeditor/userimages/file/61983369697.pdf
- http://strandedtattoo.net/file/74293704667.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d36db0a0628---mekipeveg.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_off0000e67a.bin3a9f86749a258f6b07f7949a77ac0c89a892b780269e4a771bfe0e921024a1e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE67A | 17660 bytes |
font_01_sfnt_off0001144d.bina74a02e2cfc3a633aeac2f4df9d9ab719c77b9fe808145f162b4cc84f0cb4a42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1144D | 10912 bytes |
font_02_sfnt_off00012db9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DB9 | 16792 bytes |
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