MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV. It contains numerous external URIs and links to compromised WordPress upload storage, indicating it functions as a link farm. The presence of 'utm_term' parameters suggests an attempt to track user interactions with these links, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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=after+effects+version+cs6
- http://anandtouristcorporation.com/uploads/xesusejupudakid.pdf
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/44290981b34c9d622013548f3e30efbb/9050614195.pdf
- https://cutandcolorparrucchieri.it/file/newikofuxajarovol.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9c2907b61---zanupaxobimovetolemaduwo.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160c09ffbefb13---57842135479.pdf
- https://motacademy.it/file/99467856221.pdf
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d84ca37c6---kuroxuvupodo.pdf
- http://allasclub.com/campannas/file/bejegijitamexukedi.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077769d18e4b---2784837160.pdf
- https://scheidungsrecht-best.de/userfiles/file/74788724443.pdf
- http://applecentervn.com/uploads/image/files/10942636842.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af82db8f415---3016410245.pdf
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/3f6c3c405d924eac30fac0bd6af13aae/4424477221.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/6335f25a1bdb631f1f312f379e39f819/joluvinekubutidoxazuvog.pdf
- http://hitecds.com/userfiles/file/49933170156.pdf
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/7f56cgv2j1qtea1sv3tu77eui0/vosubafoto.pdf
- http://sxcec.org/userfiles/file/rifetejagovozulonesefi.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ffe31cecd---tevizebe.pdf
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9cc40d616---35475193413.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d7171ded87e---pidezufotexupuduv.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/qb90905cbijovo1rfc6jqis1ql/gamalufol.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/f33l21qga0ip6vcl6d25gnfdp7/gaxefinuxav.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac93bacf718---42037782022.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_off000108ad.binff336165035524639cb8445e9b63a67684e03f8ea257a9e8bc45702daf881418 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108AD | 17260 bytes |
font_01_sfnt_off000135ce.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135CE | 16792 bytes |
font_02_sfnt_off00014de5.bin2738b46bbfa78145cdf3292c0cb735cda215cd4b29db062c6b2f7178bb4e7d22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DE5 | 10336 bytes |
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