MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to multiple compromised WordPress sites and other domains, suggesting an attempt to distribute malicious content or phish for information. The heuristic 'SE_INVOICE_LURE' indicates the document may be disguised as an invoice or payment request to encourage user interaction with the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9899
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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://nadiadsa.org/userfiles/file/wagekesarivemoxibebo.pdf In PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e861b2e416---xibodajotizoriwoxigupanez.pdfIn PDF document text
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/326o8sh2mi7ppbj6p1706osh6f/85188741412.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f343f2941f---pefuva.pdfIn PDF document text
- https://audreyheselmans.com/_files/file/nesujawolanazujajarumose.pdfIn PDF document text
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/8b16477590610b365558b8123d0099d5/59001661089.pdfIn PDF document text
- http://ingpoggi.eu/userfiles/files/gonidiridamo.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e92d964ca4f---ligajamovafidagakozut.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca52658a0dd---segusiwadakimunobisepataj.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16095d2b895a93---goxatudukopevirema.pdfIn PDF document text
- https://gites-les-bardots.com/userfiles/file/vevemujopesidirabazu.pdfIn PDF document text
- https://dalyanestate.com/userfiles/file/26496971906.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/94c260f03282cd7b19515154e024a544/kenisebodalukibemego.pdfIn PDF document text
- http://chongros.com/userData/board/file/4038593608.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094dc5f3db55---19403949239.pdfIn PDF document text
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/l569h6qimsite4kqnsa39rjbrv/mutazilugasok.pdfIn PDF document text
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/11345980211.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609854e1770cd---bokobewodumitasazelagewo.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ldjukdsco1bcq7cmflfeoa7vn6/91878664099.pdfIn PDF document text
- http://twfbs.com/ckfinder/userfiles/files/7761105028.pdfIn PDF document text
- https://yucekalipmakina.com/tsrm1/img/userfiles/file/53918880755.pdfIn PDF document text
- http://gtshotel.it/images/file/jazikasezezixu.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210701_0F0C29484C438C72.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/kabatuvajujazojixodasogaw.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16088be5ed377f---68456683738.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/77fe9687c6eb9fff9cd211be9477afaf/vabipebemev.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=quickbooks+online+certification+exam+section+1+answersPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00018296.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18296 | 11128 bytes |
SHA-256: 37bd0f0a9851156edba802741698ec2517dd918b48522a66bc62cc3d3b257eb7 |
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font_01_sfnt_off00019ccc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19CCC | 17184 bytes |
SHA-256: 80899417a8bdfe91f8b7fae5bdbe40ba13c78fcd1ed806ed1458793f0751a610 |
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font_02_sfnt_off0001c9bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C9BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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