MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that function as a link farm, directing users to various external websites. Several heuristics indicate that these links are hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://nitexprofi.cz/userfiles/file/47863780066.pdf In PDF document text
- https://wemservice.com/ckfinder/userfiles/files/nodinizibexozexiwosugot.pdfIn PDF document text
- http://car-zone.sk/data/data/file/54102922385.pdfIn PDF document text
- https://rais.bg/uploads/file/13316209183.pdfIn PDF document text
- https://springkasteelhuren.be/userfiles/file/19782240563.pdfIn PDF document text
- http://at2apigroup3.com/contents/files/mubinuxogimu.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613faebf4c3d0---86956874261.pdfIn PDF document text
- http://tdsns.ru/userfiles/file/rored.pdfIn PDF document text
- https://tessuno.com/upload/files/6130567a7f892.pdfIn PDF document text
- http://leylatoprak.com/userfiles/file/77550550536.pdfIn PDF document text
- http://www.polni.si/Images/files/kakutuduvo.pdfIn PDF document text
- http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/tulanekubajomuwazenozi.pdfIn PDF document text
- https://ccaquebec.com/userupload/files/kasuxurikokorek.pdfIn PDF document text
- http://advocaatindex.nl/images/uploads/4449042443.pdfIn PDF document text
- http://sgpeo.pl/users/file/rizipuninuguturepazus.pdfIn PDF document text
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16135a115f21e0---29384444761.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6c9561209---kojalisejozojoxuva.pdfIn PDF document text
- https://mclandpin.com/calisma2/files/uploads/vofoweguzidetaw.pdfIn PDF document text
- https://anaksemut.com/contents/files/rigiweguda.pdfIn PDF document text
- http://ktai.lmg.jp/upload/file/20488578014.pdfIn PDF document text
- https://muachungbaohiem.com/uploads/userfiles/file/54911204243.pdfIn PDF document text
- https://tectrongim.com/uploads/file/pifona.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136171d06f66---mojuwapowezujinot.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=black+ops+download+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_off0000cb8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB8A | 17900 bytes |
SHA-256: 73f32969f4c7787158c74033bb1775f9acd1c864d16bd401f864365ecbc192d8 |
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font_01_sfnt_off0000fa4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA4A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011261.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11261 | 10316 bytes |
SHA-256: e2068a1e4cf5fd7d33918c81c7bfca4237a38ed8ee1c2a0d3e0f35ded9e51e2f |
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