MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised WordPress uploads and other disposable hosting, suggesting a phishing or malware distribution lure. The document body is unreadable, but the presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest the primary purpose is to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://uleiuri.ro/userfiles/file/faravaxexowumixekezivafo.pdf In PDF document text
- https://mecaniquekd.ca/upload/file/12251170883.pdfIn PDF document text
- http://henri-ruch.ch/doc_pub/file/waziwatu.pdfIn PDF document text
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acb51e2d6d7---79794819207.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1606c91539acec---saziz.pdfIn PDF document text
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/f1e38b93d895e39ba62eaf4acdedcfe2/34014133036.pdfIn PDF document text
- https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/1609894a7bec9c---wupenusamubanazarubiza.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/93953081579.pdfIn PDF document text
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/5mcgo55lijq7bto79hhlsf96u4/73229598.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606c813a493fe---genokagobatotebuwu.pdfIn PDF document text
- https://sieuviet.net/webroot/img/files/jovijixuzaxe.pdfIn PDF document text
- http://flightshop.jp/images/blog//file/92427010733.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/hq47cllrtfuiqtrpokq0g9t4oa/samixovepidumiwogup.pdfIn PDF document text
- http://np-laser.com/upload_fck/file/2021-6-22/20210622204405676053.pdfIn PDF document text
- http://madang.eu/f_pds/fck/file/degavijakivukamejib.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7fefec35f---64054576730.pdfIn PDF document text
- https://vpntraffic.com/upload/files/xenasuzunonifa.pdfIn PDF document text
- https://cafepiolho.com/uploads/assets/44135539568.pdfIn PDF document text
- http://mjsolankifoundation.com/fck/imagesfile/zemokema.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=bad+things+that+start+with+kPDF 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_off0000f086.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF086 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010898.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10898 | 17584 bytes |
SHA-256: b98d33ee66d8e6a81ff8d84fb143e71aa403a2d2081f0e0c8588c2e64d4483f7 |
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font_02_sfnt_off000136cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136CB | 10460 bytes |
SHA-256: e17eeba66bfc124a798f6c3472270a07ee806d7b992dee733afb07fd8406c05b |
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