MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting it functions as a link farm. The embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicate an attempt to direct users to potentially harmful external sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://vandientuchinhhang.com/upload/files/xegukad.pdf In PDF document text
- https://songhong.info/userfiles/file/60963750485.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160958b21354a3---nedakexawixom.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088d3d543209---tobivoroxovisaxafalidek.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087c7e529753---mixoravaru.pdfIn PDF document text
- http://unseenadventure.com/userfiles/file/98875204183.pdfIn PDF document text
- http://toyotarent.kr/FileData/ckfinder/files/20210722_109AB623DF7E82FA.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c97d413a477---68177923133.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160822d649701d.pdfIn PDF document text
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/530e2e9147ffbbf57eb66f86a12d61bf/kitigaradob.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/586qn7bh9no1divrfh2sptemol/fuzevinuxawu.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d70f4c6dbed---43118780450.pdfIn PDF document text
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160777a3b1c55c---21792307395.pdfIn PDF document text
- http://www.peritaonline.es/ckfinder/userfiles/files/mudodusugakokuxutipeguros.pdfIn PDF document text
- https://propactionvehiclesuk.tv/userfiles/files/nezujo.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/97qc8dgu8ucsbgbeucllmvadcm/rafanaxogej.pdfIn PDF document text
- https://copperscraphandlers.com/ckfinder/userfiles/files/xotifup.pdfIn PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/f307c7415be943aace812f6d267d1535/27342621450.pdfIn PDF document text
- https://www.notusweb.com.br/ckeditor/ckfinder/userfiles/files/55839103063.pdfIn PDF document text
- http://wisewood50th.com/clients/3/35/35ca2b70ae131fa39667c240906a3fe4/File/kemunopefawulafutefavali.pdfIn PDF document text
- http://poketomecam.com/uploads/files/93635162453.pdfIn PDF document text
- http://www.odnpoznan.pl/fotki/file/file/vagesulakokezulosedim.pdfIn PDF document text
- http://comp-art.ru/userfiles/file/negimi.pdfIn PDF document text
- http://celeb.huh.hu/UserFiles/File/pobizukajibekarimuxedofaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=why+is+my+ooze+pen+blinking+green+20+timesPDF link annotation
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/1f24b9b123c9cdee194b9b9a49f36e74/60303923825.pdfIn PDF document text
- 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_off0000e265.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE265 | 11176 bytes |
SHA-256: b47cc3db7518a5dc108c8c4c4b56053b0a3aaa756e335363d89e545efe18f8f6 |
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font_01_sfnt_off0000fc33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC33 | 17120 bytes |
SHA-256: 38539e6e1bb37431fabdcb1a59e6dcff36457065f911c85371aaf22c6538c633 |
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font_02_sfnt_off000128df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128DF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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