MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, with high-confidence heuristics indicating it's a link farm on disposable hosting and a lure for a password-protected archive. The document body is heavily obfuscated, but the presence of embedded URLs and the heuristics strongly suggest a phishing or malware delivery attempt. The primary goal appears to be tricking the user into downloading a password-protected archive, likely to bypass gateway security.
Machine Learning
- Nyx PDF Classifier malicious score 0.9726
Heuristics 8
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://akinmedical.com/uploads/file/tudapomuv.pdf
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/90fc7475a6aa2743a30370c3a6714c9c/43129330921.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16093c02ad8d1e---17948845654.pdf
- https://htchninc.com/d/files/salokapufap.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087884b463cc---72904690563.pdf
- http://tamlaproject.com/userData/board/file/69085425472.pdf
- https://genegurumiraclehealer.comuserfiles/file/narenekad.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/346905e4b36d0f77f6830748bbc8c793/71227777407.pdf
- https://biothiennam.com/media/ftp/file/viluxudo.pdf
- https://alula.com/wp-content/plugins/super-forms/uploads/php/files/ed8ce0859fc32f335fa891110dc7019a/buranavisemowide.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c063b5c738b---47590017839.pdf
- http://com123.vn/uploads/file/19265000007.pdf
- http://amphorabeautyclub.com/campannas/file/lupejenanisomu.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe0adae3c2---webanukif.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/ufcav61d8rggebqj2cbn1ekpmg/fapedoxade.pdf
- http://agnieszkapawlik.com/userfiles/file/bekoxatizosuwutiv.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/gdoqe64bhmmvjp3v3mufcn4vnb/38373427446.pdf
- https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/cf5b0265282326f2050229c335b2334c/45143156358.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160958f820b95f---losewoguroxewamebaje.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160ae4288a84e0---tekedonevalosavaburuvis.pdf
- http://circuitoinsulargc.com/documentos/file/50632767654.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/ff05542a2fd4ba54a58fd37848d7c0bf/42846912390.pdf
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/7e36n75s7buhdt4g4svrsqgvvg/53883355358.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=you+plan+to+implement+a+new+security+device
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000266f0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x266F0 | 16792 bytes |
font_01_sfnt_off00027efd.bin1e332dba3d6d4e1e26afeaa1813e01be979d3c640a2dbbf3ab979d25bf84189f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x27EFD | 3964 bytes |
font_02_sfnt_off00028dfc.bin8c4c1fa4b2871d673100001fac2737d72c5e15d25119ce4f581eded47d43c695 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x28DFC | 19000 bytes |
font_03_sfnt_off0002bee3.bin9f6aec8da5a06194b4c13f0d92ff4d35b7e263c9e0539d709f1d7c575ec59632 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2BEE3 | 11024 bytes |
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