MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm that redirects to multiple compromised WordPress sites. These sites host further PDF files, indicating a chain of redirects likely leading to a malicious payload or phishing page. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b62deb04605---pavub.pdf
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/deca8a5a4312914b2625c20b07da6b8a/47470794570.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ab969068584---87115049370.pdf
- http://bloomx.com/sites/all/sites/bloomx.com/files/20555730282.pdf
- http://qunjl.com/userfiles/files/5757913137.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/4f5bd672f57944f3934094734422c37e/45549897537.pdf
- http://unsersohn.ch/images/file/78629813355.pdf
- https://ilcaminodaugo.it/file/87032110177.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd7ee9b19f5---97702587144.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f45e70e560---23452914008.pdf
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/03hvniv2tnnib1kda6hmg4nueb/47788381168.pdf
- http://cnhhgj.com/upfiles/userfiles/file/xowajanadula.pdf
- https://zionapostolicministries.org/uploads/file/97532565322.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/oro1p2ci35n4rp2qosk2btrl9n/8603602348.pdf
- https://jambumanis.com/contents//files/nexofizonetagix.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607fead02260f---78535105843.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b49b34c309c---mozixifapuradekejedu.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/g6dnh7elht6fnlihinot159msg/34382664434.pdf
- https://edu-mate.kr/_UploadFile/Images/file/bufinupajovupojo.pdf
- https://fruitssupplier.com/app/webroot/img/files/78709995921.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/1a4faa97f4e00e60cb59618c8fea02d5/1476680242.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=hosanna+letra+marco+barrientos+acordes
- 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_off0000d8c7.bind93a456a984d00d6d4e0a0a4ec720abc17e498ef446ed0cc5dfa165c47d27ed9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C7 | 18692 bytes |
font_01_sfnt_off000108a1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108A1 | 16792 bytes |
font_02_sfnt_off000120b8.binbdf9ecfb5c22c96703138dc98375c563a2ccd0f8b594af10ec64ffb2a603a9b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120B8 | 10664 bytes |
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