MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate maliciousness, classifying it as a phishing trojan. The primary function appears to be directing users to potentially malicious external content through a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/7cmqkbk1ag63kagojfoavp4r9t/55479037188.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160949b603f4b0---jutanudowosupadiburezazu.pdf
- http://yournamebadges.com/withyourdog/cms_uploads/file/23340377460.pdf
- http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074527517621---gobotixo.pdf
- http://akhsmombasa.com/clients/861898/File/fipisovedupotajuzoxare.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16093050412420---49931952880.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16075dc4fcf1cf---bukulup.pdf
- http://ixtvs.de/_upload_bilder/_filemanager/file/wejusunulod.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f5475527ef8---jadiv.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a0251d75a61---nupaxizo.pdf
- http://dallapietamarchisio.it/userfiles/files/54952588731.pdf
- http://doubletroubels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2d3e37f30---lopufod.pdf
- https://gangnampools.com/contents//files/34953678028.pdf
- http://b-solutions.net/userfiles/file/91786236786.pdf
- http://relocationservicesgroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce77717fc8---83920730997.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/72pu0p416ql66anmh6cqsrph1i/rawexawebusomotokeminoxa.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b34762315a4---xawarina.pdf
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/c30611443e1ae9d7360c3ad2edfc246a/24796970883.pdf
- http://rollfactorytogo.com/uploads/files/legixizamadozalumidale.pdf
- http://cuoredicane.it/userfiles/files/94381601457.pdf
- http://rexant.by/upload/editor/files/bifosetexekiti.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=from+inquiry+to+academic+writing+5th+edition+pdf+free
- 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_off0000e320.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE320 | 16792 bytes |
font_01_sfnt_off0000fb32.bincc41e5c9722f1c7161870fd0fc6351948fa9f8cce264ef7757e695a8e21fd544 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB32 | 17140 bytes |
font_02_sfnt_off00012811.bin84245bdf2f2711403cad31ee64219fe38723ffabc345e3a30121d75f5932eb0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12811 | 11412 bytes |
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