MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document that contains a link farm pointing to multiple compromised websites, likely intended to trick users into downloading a password-protected archive. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' strongly suggests this intent, as it indicates the document provides password instructions for an archive. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://maplewoodmachine.com/clients/1/17/17f0ea2532424b9b8bf99baf53cd3763/File/42672229480.pdf
- http://midel.me/userfiles/file/xovupabapidi.pdf
- http://www.annaleehuber.com/content_files/file/78097919911.pdf
- https://next-engineering.com/userfiles/files/66550333302.pdf
- http://gdwtechnology.com/fckeditor/file/4328862444.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/rcsi3f51vf76dsich45kn62eji/sadasepowelisifupaso.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b481b806d05---18493503569.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160757b353d8e5---18784535956.pdf
- https://kamarkosong.com/contents//files/boxakonerewikuwinulabo.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb9af4999c---41337887507.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1612525f795ad3---ramaguganopasisetuwezoruv.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/9f1fa0450f1b384299bf9bcd7c780251/pamowimuvonexa.pdf
- http://bptramptour.pl/files/file/77785518321.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160881cf3593ad---45921150792.pdf
- http://watdoenwevandaag.nl/upload/nipagarunixuwezudu.pdf
- http://studioego.cz/userfiles/file/11555732443.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/92334687729.pdf
- http://motolargo.pl/userfiles/file/dapumisizukukebawukaxim.pdf
- https://fertilizerproductionprocess.com/d/files/degikuriz.pdf
- https://efficimm.fr/userfiles/files/59064091021.pdf
- http://ominocoibaffi.it/userfiles/files/41305206658.pdf
- https://allcreaturesinc.com/files/files/98839803276.pdf
- https://client-sms.com/ckfinder/userfiles/files/68446158645.pdf
- https://www.anandtirth.com/wp-content/plugins/super-forms/uploads/php/files/ggu854dan7h9bdrl57f5in4mu2/94369690408.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=programa+quitar+contrase%C3%B1a+pdf+gratis
- 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_off0000b5ff.bin4f0cd98661f30f5d00d0686c75b42aaed10de03da97a66e07e38d4354fbf6a3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5FF | 15160 bytes |
font_01_sfnt_off0000db1a.bin9c84e1f851e4ec2542d3c651083a2cfe2d8a6bd6307f902f5caea1955e4b9d9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB1A | 11372 bytes |
font_02_sfnt_off0000f528.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF528 | 16792 bytes |
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