MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with multiple URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO poisoning campaign. The document body was unreadable, but the presence of numerous external links strongly supports the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160755f4086155---52718512075.pdf In PDF document text
- https://advantage.ee/media/contents/file/darajini.pdfIn PDF document text
- http://andrelandberg.com/userfiles/file/xisetitakomupekesobemib.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/xovikisinalekuzot.pdfIn PDF document text
- https://renault-service.com/userfiles/dajodarekejudoruniwono.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/f84e31aa4f03fea2b139e41ec32d08ac/76575574870.pdfIn PDF document text
- http://detikakdeti.ru/img/file/xudarexosazogifobanu.pdfIn PDF document text
- https://vegan-eshop.cz/data/file/jilusitiwufamapojifaxeku.pdfIn PDF document text
- http://konikanarrowfab.com/ckfinder/userfiles/files/82749151547.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609451298c73a---mokon.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/029c9c83ab93e0c00d8704329106e549/76751300469.pdfIn PDF document text
- https://riondene.ch/img/uploads/file/jogererimolefeb.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1611fcf4605b01---xomiso.pdfIn PDF document text
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/6evmmlp97rpllaf91fqutq5297/pejevuzekodabewigew.pdfIn PDF document text
- http://barahi.com/assets/userfiles/files/natot.pdfIn PDF document text
- https://twr1115.net/files/fckeditor/file/79653110016.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080a898703e0---46480609784.pdfIn PDF document text
- https://paklya.su/design/img/upload/file/guzotatujemowavigi.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124cf35c6655---kuwepovefupigo.pdfIn PDF document text
- http://onnetsolution.in/userfiles/file/dotixupogevudepos.pdfIn PDF document text
- http://hibertek.com/image/files/20210610_041729.pdfIn PDF document text
- https://tapetcenter.ro/app/webroot/files/userfiles/files/lebuxarila.pdfIn PDF document text
- http://galluccifaibano.it/userfiles/file/nimoxedurazesegoded.pdfIn PDF document text
- http://elfobchod.cz/foto/Image/file/zalakevaxoxixulazibanek.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=crude+oil+pump+station+design+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_off0000e54e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE54E | 10972 bytes |
SHA-256: 315732ff8f79eb5a8f3514c55d5b324582143906e558bbf8da6bdda033e72f3f |
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font_01_sfnt_off0000fe8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE8E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000116a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116A0 | 17544 bytes |
SHA-256: aa5d83377a2400fae01de7f5ffa31531bd3c749d3ada1ea24417dcb28bd692f2 |
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