MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to numerous compromised WordPress sites and disposable hosting, suggesting an attempt to distribute phishing content or malware. The embedded URLs, such as https://nomylo.ru/uplcv?utm_term=how+to+manually+update+android+on+asus+tablet, are likely used to redirect users to malicious destinations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9885
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 https://nomylo.ru/uplcv?utm_term=how+to+manually+update+android+on+asus+tablet PDF link annotation
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/aeb697d763f23c11ec8f2c08d325fd6e/90663548427.pdfIn PDF document text
- http://uitetenindex.nl/images/uploads/27012267135.pdfIn PDF document text
- http://skrabl.pl/www/rpbd/fck/file/7660404013.pdfIn PDF document text
- https://tapuionoticias.com/ckfinder/files/nomusimutulaka.pdfIn PDF document text
- https://limsurempat.com/contents//files/vuvetazegopazul.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7054545914---subewemedadijofirorol.pdfIn PDF document text
- http://istrouma1971.com/clients/9/9b/9b88b062b8d6af44b28e209fcb06d7d5/File/77924605324.pdfIn PDF document text
- https://kalyna.ua/sites/default/files/userfiles/file/fenabeteki.pdfIn PDF document text
- http://first-group.kr/ckupload/files/dajapivalogepuma.pdfIn PDF document text
- http://atsrealtyvietnam.com/upload/files/gapefejuw.pdfIn PDF document text
- http://vksraja.in/fckeditor/upload/file/41342387160.pdfIn PDF document text
- https://swift-tw.com/lcc/upload/files/mozevexorobatoz.pdfIn PDF document text
- http://edilgroupdigiovanni.it/userfiles/files/21146176511.pdfIn PDF document text
- https://justbuymeds.net/userfiles/file/54695390884.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f91fb82d1---1024372638.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160e0e614a976f---54936691380.pdfIn PDF document text
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608539f1f1a88---4275471262.pdfIn PDF document text
- http://techbico.vn/uploads/image/files/nuriwefobetedederirepidom.pdfIn PDF document text
- http://fw-simple.com/uploads/files/10248624905.pdfIn PDF document text
- http://palenice.net/obrazky_clanky/file/ginidabowegefutinonegamu.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611fcd97890b5---119944998.pdfIn PDF document text
- http://szao-spb.ru/images/news/file/12650570998.pdfIn PDF document text
- https://vannordenvastgoed.nl/userfiles/file/dexidosexuvuwopipituzene.pdfIn PDF document text
- http://gusanhightec.com/userData/board/file/fikevufuzesidigili.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161357ce9cf6fd---48770440287.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c69a4f476fd.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607abec2beeaf---riwawujotizukota.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_off0000bd06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD06 | 15832 bytes |
SHA-256: 32cb812d15431525adf616f8a985a6848c41066a1392bacb20ca96ddb070f925 |
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font_01_sfnt_off0000e5b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5B0 | 10984 bytes |
SHA-256: 20bb058b677d3e178764cee614ee88801323ab15f08c1b0112ee57069770e448 |
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font_02_sfnt_off0000fefd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEFD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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