MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically identified as a phishing trojan by ClamAV. It contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The embedded URLs and the nature of the heuristics indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://sequirk.ie/userfiles/file/32476186623.pdf
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/p5adlomn0dd00hrq9cfdrn83i0/pomevonanutoxa.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5806514e33---ridurasijavipotus.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cad32274379---79141534103.pdf
- http://stylekd.ru/files/wubolafudumowajadudadaves.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606faacbcabb3---monasaladeloparerupiv.pdf
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a115881b615---31437418648.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609f4b7f0330e---puxalilanoxujab.pdf
- http://tantex.org/tantex/tantexuserfiles/file/29660583491.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607889eb379c1---98370125568.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/e7d92c2045a8c6c0aad8aa4aca19a654/10867591578.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160808c4056f9c---sugolorukageman.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d7a6c4a2bad---55999119973.pdf
- http://envigest.cz/upload/file/12095931478.pdf
- https://akapacha.com/userfiles/file/19860988516.pdf
- http://global-insurance-broker.de/downloads/21657598352.pdf
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/c220a7785905d36756523acc13a5cd0a/18139985084.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160773a84c4448---fodunoraxevuviwozijaziw.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/e596e043cdffd1947758419924bb452e/wajowaporunejuloweneju.pdf
- http://quadocdao.vn/uploads/files/pamanepafif.pdf
- http://kaies.cn/upfiles/210618163935887752h6chrp.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c26c581b7b2---kazolukuxesedalazase.pdf
- http://drironcat.com/images/file/99144414010.pdf
- https://roweryelectra.eu/app/webroot/uploads/file/16202979668666.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=england+vs+india+2021+live+streaming
- 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_off0000edc7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC7 | 16792 bytes |
font_01_sfnt_off000105de.bin16b9423bc448016545cdb4f309dbcad2f508ccdf2208a9daaa6d5117102704d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105DE | 10816 bytes |
font_02_sfnt_off00011eb2.binadd43571385c71b2c7f4d90a481fe4591ff292132ac39313a5a7adc9d68b0bbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EB2 | 16924 bytes |
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