MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, indicating the document is designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134598689e1b---80533308330.pdf In PDF document text
- https://by-express.com/upfiles/editor/files/87120800900.pdfIn PDF document text
- http://altinay-law.com/images/file/poruzor.pdfIn PDF document text
- http://yetisirkaucuk.com/firma/files/34724482760.pdfIn PDF document text
- http://roomyab.ir/basefile/roomyabir/files/nakabuvubisutafevodewipaj.pdfIn PDF document text
- https://ezokniga.com/uploads/file/83143649297.pdfIn PDF document text
- http://mcap.cz/images/uploadedimages/file/81011426323.pdfIn PDF document text
- http://snnet.kr/board_pds/fckeditor/2021/09/file/6301198940.pdfIn PDF document text
- https://grdr.org/paidel/ckfinder/userfiles/files/22450781478.pdfIn PDF document text
- https://hasekei.jp/userfiles/file/10698894333.pdfIn PDF document text
- https://4of100churchstreet.com/assets/media/files/gewidojukabusazorurufex.pdfIn PDF document text
- http://kanomax-nsk.ru/images/konoxew.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16134c6a6da320---60571791593.pdfIn PDF document text
- http://miryangpension.com/FileData/ckfinder/files/20210901_D334EA01681A07BF.pdfIn PDF document text
- https://glamweddingdesign.com/userfiles/file/nabetanevozufavufi.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161372919a29cc---sidenepaluxulurup.pdfIn PDF document text
- http://teakdeck.pl/files/file/padunonejotiluren.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9bc54d279---80245565556.pdfIn PDF document text
- https://thietbixaydungcantho.com/canthomobile2/public/images/sanpham/files/82531213097.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/204ead468f65056ab65cea083134ec5b/91632176980.pdfIn PDF document text
- http://ebsenglish.net/_UploadFile/Images/file/61362014777.pdfIn PDF document text
- http://home-hj.com/up_photo/file/79723914369.pdfIn PDF document text
- http://paraglider24.de/pics/fotos/1/file/papujosipopilegidosuxuvuj.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=latest+supreme+court+judgement+on+498a+pdfPDF 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_off0000def9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEF9 | 17088 bytes |
SHA-256: fb72a3c0d867254c52641c85a5d61752c6eeec7bdb91eb7c4c743324f10d9613 |
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font_01_sfnt_off00010adf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ADF | 11464 bytes |
SHA-256: b4a14e4e2d6605c4e8c0b6667de8e9234d7a289faaec14bb5387874052e51a17 |
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font_02_sfnt_off000125e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125E1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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