MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting an attempt to obscure the final destination. One heuristic specifically identified a link farm pointing to compromised WordPress upload storage.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 http://klm-co.ru/foto/ck/files/sevawuzupo.pdf In PDF document text
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/53730471345.pdfIn PDF document text
- https://aildf.in/userfiles/file/tibugurivibavijifatenirot.pdfIn PDF document text
- https://bipalisdemo.dashindonesia.com/userfiles/files/32689941610.pdfIn PDF document text
- http://a-b-i-s.net/layout/bilder/file/vawin.pdfIn PDF document text
- https://sanidom.pl/img/file/jejolizipeb.pdfIn PDF document text
- http://4reality.cz/userfiles/files/98823082837.pdfIn PDF document text
- https://twinslock.com/ckfinder/userfiles/files/karipev.pdfIn PDF document text
- http://sonsuadogo.org/Images_upload/files/81264121291.pdfIn PDF document text
- https://edouardweil.com/userfiles/file/zavosebu.pdfIn PDF document text
- http://neonatal-surgery.ru/userfiles/files/susuxawubolimij.pdfIn PDF document text
- http://schokoladenfontaene.de/idata/pepasozonexiv.pdfIn PDF document text
- http://ttmplus.com/userfiles/files/lawafajog.pdfIn PDF document text
- http://www.otevrenysklep.cz/ckfinder/userfiles/files/wevufazege.pdfIn PDF document text
- http://zetrade.cz/userfiles/file/lodudaropupilo.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/e54a960821ef526f68ca95d9153bf76d/49258374572.pdfIn PDF document text
- http://herningbadintra.dk/app/webroot/upload/files/zuguwirobujelusemuri.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16133d10cde572---lajagovijidekedinoxupar.pdfIn PDF document text
- http://laptopplus.be/app/webroot/files/userfiles/files/40934373816.pdfIn PDF document text
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161324ea681a28---pomukezonimaripawid.pdfIn PDF document text
- http://machinesupplier.cn/data/product/file/202196_224638_764.pdfIn PDF document text
- http://santehnika34.ru/images/file/65383952567.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=the+walking+dead+game+season+2+apkPDF 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_off0000def8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEF8 | 10904 bytes |
SHA-256: b30aa99319faaf069036b259accb023c177afd8cc828749d8a9e01082a653891 |
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font_01_sfnt_off0000f7e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ff6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF6 | 18568 bytes |
SHA-256: 86519949d10dbc7d31d14d4be7b359e1b8030046d7ae02928e796dd961775b7d |
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