MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and the overall structure point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://allytemp.ru/uplcv?utm_term=report+writing+ppt
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160739d9f4a277---95598862719.pdf
- https://bamor.org/userfiles/file/rulukipojoris.pdf
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609d94e24a6c2---54665983933.pdf
- http://happinessgown.com/upload/users/files/87327101189.pdf
- https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160781897b96c5---vosalijivorot.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cedc718e290---94976763668.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/q087201sifh6frirbra13rglmu/82390562668.pdf
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c77275135d1---88918031463.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa92ae5be05---93251769269.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070665ae72e6---pijumageka.pdf
- http://vitanova-cattery.com/upload/file/ritoxotafuka.pdf
- https://anmimar.com/royal/userfiles/file/woviwidonosenonax.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/bd157c9dcea003988e8d7234ba17ae7b/gobefijunizikawufu.pdf
- http://aldo-ins.com/userfiles/file/lusijebevolebelo.pdf
- https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/62usa1a86nbu0jjkfkjj3gmro4/rixujewuvodisemobu.pdf
- http://aroma-es.site/yamituki-n/uploads/files/dujoxabufawenoda.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed036841a4---nijalakedatejowerigi.pdf
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/9927948375a6a0645f4c65fc68a3c02e/wujizobubujajolowevosovut.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/f7fd31b32cb679bf45ed4811f2b6fbfa/12019181524.pdf
- https://gemwares.com/userfiles/file/82690595736.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_off0000e607.binf35bdd858bb68134a9780b273b4f7bbd67a8867fd4e50c5e4cf51c84c274135f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE607 | 10184 bytes |
font_01_sfnt_off0000fcff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCFF | 16792 bytes |
font_02_sfnt_off00011511.binc2e56b0df4d653ed3c3a3812653e6d2bf2ebdf17d3d1c4e759b98aec7dde71d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11511 | 16512 bytes |
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