MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress sites, which in turn host other PDF files. This suggests a tactic to manipulate search engine results or distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9941
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://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be6a1f2b6fa---68022104525.pdf
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/7eeb7b7e62b446674572f9ce4b3da258/kujatox.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b204df7dc12---denakivijasijaramodejuma.pdf
- http://pressvaluation.net/userfiles/file/juget.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160823ed3ccd6a---62281512498.pdf
- http://amadpich.com/userfiles/file/11202585040.pdf
- https://roweryelectra.pl/app/webroot/uploads/file/1621197264109.pdf
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/96d74efaaf61b0f26a86e3e6ffb9c791/40067390534.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160874084224fa---24194517156.pdf
- http://artpolinakuzina.ru/pict/file/64675842794.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cffa9acff5---77262204946.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b3f930904---80811121067.pdf
- http://samtle.net/ckupload/files/82518020745.pdf
- http://churchtextile.com/userfiles/file/76485912678.pdf
- http://teamwork-poetschke.com/ckfinder/userfiles/files/dowabusivetotibatisesopuj.pdf
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160edb982d88ae---lagujirizovupuvavubefuju.pdf
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607230ed2c85d---jibidulem.pdf
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/3v1ncvvn5jdqc38alpao13n791/bapido.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f4cd3d85b---fagevusizazoxegobikewu.pdf
- http://yuha.be/_files/file/dexojevilijepevid.pdf
- http://hoangnamjsc.com/upload/files/modoselejev.pdf
- https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/35c59fba973d8086b5533a388ec2eb7d/763791417.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=ethics+in+information+technology+fourth+edition
- 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 |
|---|---|---|---|
stream_004_off00011ec4.bin5a1fc1b90264e546832cc52b48abafe720ba4ca2897fa410bf90855477f6084f |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x11EC4 | 23908 bytes |
font_00_sfnt_off0000dbaa.bin8f83bed9266684c115fa1f84e554acc64cfb25b28baf56e582f06d24ca0d325c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBAA | 16516 bytes |
font_01_sfnt_off000106b3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106B3 | 16792 bytes |
font_03_sfnt_off000148ce.bin436c94de2488a0bcb1d894784188b7b489565368e77dad236cfac77c921e5f67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148CE | 11120 bytes |
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