MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. It contains embedded JavaScript and a link farm pointing to multiple disposable hosts, suggesting an attempt to redirect users to malicious content. The presence of a compromised CMS upload link further supports a malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://sweet-sugar.de/images/uploadedimages/file/85459926901.pdf In PDF document text
- https://bankkartya.hu/js/ckfinder/userfiles/files/99326290773.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137954995221---lapezametix.pdfIn PDF document text
- http://ceramkgres.ru/userfiles/file/65632307951.pdfIn PDF document text
- http://ssp.by/var/upload/bupegubu.pdfIn PDF document text
- http://triple-a.co.th/ckfinder/userfiles/files/92059015760.pdfIn PDF document text
- http://olech-rzeszow.pl/userfiles/file/19452436205.pdfIn PDF document text
- http://myjobcareer.net/userfiles/file/2021090401113673499.pdfIn PDF document text
- https://ystechpro.com/nbloom/fckuploads/file/87899491176.pdfIn PDF document text
- http://indagosrl.it/userfiles/files/rifaw.pdfIn PDF document text
- http://hlqh.net/userfiles/file/20210916182117_913636787.pdfIn PDF document text
- http://skupka23.ru/upload/m/69175637386.pdfIn PDF document text
- http://malir-naterac.info/UserFiles/File/20654589260.pdfIn PDF document text
- https://tradingphrases.net/userfiles/files/42207111221.pdfIn PDF document text
- https://porfic.com/fotos/file/nabeniv.pdfIn PDF document text
- http://dom-2000.ru/ckfinder/userfiles/files/gunosofuradelifined.pdfIn PDF document text
- http://abc-tel.ru/data/File/3933987476.pdfIn PDF document text
- https://luiginoiobbi.com/userfiles/file/nopewukokafif.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b3a489dec7---dadis.pdfIn PDF document text
- http://keletunderground.hu/images/uploaded_pics/file/wuzelubujokizogufugarazar.pdfIn PDF document text
- https://presentkompaniet.com/img/content/file/87123204703.pdfIn PDF document text
- https://majubesar.org/contents/files/jetijaxukajogitof.pdfIn PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143faa06556d---fofunigapotijidurav.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=instagram+online+status+viewerPDF 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_off0000c9b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e1cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1CB | 10652 bytes |
SHA-256: 244bda43d22c3cf67c1c2f28f71b4ed6937dc2d86fcb6c5755cf297a29f21290 |
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font_02_sfnt_off0000fa36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA36 | 17212 bytes |
SHA-256: 4f402fd6662ae2b94fa01dd90c07459d16f4785e3a09727ebba4cc838c225a11 |
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