MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites and other disposable hosting domains. These links likely serve as a lure to download further malicious payloads or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://coretry.ru/uplcv?utm_term=unit+of+energy+stored+in+capacitor
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/6158df3ebacb62e0203a4d4d38ede158/vokiziwedi.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/80057db770f08f6b3159dd85ef7a9752/59848531242.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/c88214ee0e701868513c48beacf157fa/15322933469.pdf
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160aecead9327f---27937589987.pdf
- http://aite-materials.com/upfiles/file/keludofoxumamixewasugaf.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f09110cb37---63788251637.pdf
- http://infunplastic.com/d/files/5114411688.pdf
- http://s8radziejowice-paszkow.pl/userfiles/file/19180801233.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/302f8cbbb57250a1d49af307b6cefbb6/liwiwixazudalirakifadomi.pdf
- http://amctop.com/board_data/editor_img/file/202105191021.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee0e602cd0---gufabidunuwu.pdf
- http://fszhenjia.com/upfolder/e/files/20210528032935.pdf
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/qmvh6fjpdfnmh6ka6lkcibfv2h/13939083956.pdf
- http://namlongprojects.com/images/uploads/files/89011790347.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c7992f7ffa5---bimevevararosipak.pdf
- http://renovfab-menuiserie.com/userfiles/file/nubitisezubusazuwen.pdf
- https://tiklatakip.com/calisma2/files/uploads/56919920345.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3e2a42864---13622199153.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/4f0c006778864d1101e905f4c77107de/73618642045.pdf
- http://viprealestatebrokers.com/userfiles/files/robawovefalowa.pdf
- https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/23a88g1bccr90jelnojb7g9ubd/xavejiv.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/ba00569ee8d0933f5d7f25a7858bdc56/nefosizi.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_off0000e7aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7AA | 16792 bytes |
font_01_sfnt_off0000ffc1.binf59c564946ecf2812c6b59a8d6abeb3c029b30f8d1701946fddde65e32a6ca97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFC1 | 10868 bytes |
font_02_sfnt_off000118cf.bin77fe5ddb98388c0e39fd981f6cc0f1b823b1501a5ad4980731dfd3a30e627245 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118CF | 17520 bytes |
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