MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious payloads. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9926
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://roweryelectra.eu/app/webroot/uploads/file/16200328797627.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/e2fb0d2c23877c00c537a67f0bf5c5c9/47862756151.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b14f801f2c8---4015008009.pdf
- https://tennis94.fr/img/pics/files/jezimeselalavi.pdf
- http://www.deco-interieure.com/userfiles/file/tabadex.pdf
- http://www.odnpoznan.pl/fotki/file/file/rofalakolatelodivog.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/5dl2gsss52i96pt17j4etnooul/gogirof.pdf
- http://hourinkan.net/js/upload/files/nugedasexakiri.pdf
- http://appletechsolutions.com/userfiles/file/lisiguxewozomogudojuxa.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/5cf6e05665763ff74787697e5f91fbe9/fizazawa.pdf
- http://orgue-chantepie.info/FCKeditor/upload/file/29001711005.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/e2kde5q0amcrvum90djnnggi15/dajufoxo.pdf
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f36cd4f92---29833056620.pdf
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/caa15f309cc44c393cc5868b9143e30c/24061962201.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607d16c19ee43---19914573683.pdf
- http://sam-global.info/files/file/pibinafigekosuwavibene.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad7d91c80f---legivekipexi.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099deffe8a83---vabosige.pdf
- http://elijasprojekts.lv/files/file/4812183773.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/bp758sio4bq2pgpcr6h3j7v67s/kegufixumabifa.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/aa53d9c9f459b332575c5b0b133b9382/nujekanosaxamebevo.pdf
- https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/5f49c96283e160868f0c4abef517a64f/sasupokixidafixute.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099a95a70281---nuluduzinenonib.pdf
- https://soalmatematik.com/userfiles/file/desabotedofova.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=icd+10+bacterial+conjunctivitis
- 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_off000129a8.bin702f7f9a2dc124975ac68de314cd3641ecb4799784f00d8fb9733b99a43a6cdb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129A8 | 10924 bytes |
font_01_sfnt_off0001431c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1431C | 16792 bytes |
font_02_sfnt_off00015b2e.bin53d6db54de501d50d7e13e2243208cdb204f9c34dd3d1f15ddc412a4be96fb33 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B2E | 18616 bytes |
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