MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to multiple compromised WordPress upload directories, suggesting an attempt to host and distribute malicious content. The heuristic 'SE_INVOICE_LURE' indicates the document's content is designed to deceive users into downloading or interacting with malicious files, likely by posing as an invoice or payment request.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://villa-carlshorst.de/sites/default/files/file/80664632642.pdf In PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/bedb57fb5e97f656bf36f47972701e96/58373944074.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139f3dde7a9c---zuxowube.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613953053485d---rovaxavetedisubenutidib.pdfIn PDF document text
- http://savages.lu/imagesRTE/files/19508170759.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134feb32bdad---mabuzugofiwetofa.pdfIn PDF document text
- http://myrbacken.se/login/ckfinder/userfiles/files/5255725268.pdfIn PDF document text
- http://mazraeir.com/images/upload/files/denosovevutofebimu.pdfIn PDF document text
- http://e3edu.vn/public/ckfinder/core/connector/php/connector.phppublic/uploadsfiles/kopawaveletesarotavesa.pdfIn PDF document text
- http://mnwebdesign.dk/userfiles/file/kajikefufapor.pdfIn PDF document text
- http://nieruchomosciklodzko.pl/files/file/pegifamowadip.pdfIn PDF document text
- https://santaclara.com/wysiwygfiles/file/betok.pdfIn PDF document text
- http://0975811252cool.linker.tw/files/podozatoxipuniloba.pdfIn PDF document text
- https://toptenstudy.com/upload/files/BodyFile__613A7DE7D7CA6.pdfIn PDF document text
- http://huarui-bio.com/upload/files/posevapozumakepa.pdfIn PDF document text
- https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/14893707759.pdfIn PDF document text
- https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/xetejanadigodikufagoxul.pdfIn PDF document text
- http://kirche-treuen.de/UserFiles/File/pegabufewumekibolabo.pdfIn PDF document text
- https://nidi.mk/ckfinder/userfiles/files/40469655452.pdfIn PDF document text
- https://solidpractise.com/files/userfiles/file/85147577418.pdfIn PDF document text
- http://sarigol.kr/userData/ebizro_board/file/11082335144.pdfIn PDF document text
- http://fuerst-architects.com/uploads/file/jagobeledonuvajos.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/josis.pdfIn PDF document text
- http://vijyaiprismcrm.com/userfiles/files/titikininiwobamuvug.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+add+tamil+keyboard+in+androidPDF 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_off0000f8d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D5 | 18648 bytes |
SHA-256: e625aa0d0d2fa1f75c96bf4b790f98da59870d795a49e42d1e356d7295379117 |
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font_01_sfnt_off00012940.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12940 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014157.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14157 | 10664 bytes |
SHA-256: ed032af0be6e84c86aa073025301082dd6d4315bc6f1bcd4b0f9b72968e024c8 |
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