MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains a link farm pointing to multiple compromised WordPress sites, which likely serve as a distribution point for malicious content. The presence of external URIs and link farms suggests a phishing or malware delivery scheme, potentially using embedded JavaScript to facilitate redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://guojingmall.com/userfiles/file///gexivepovofidapafoba.pdf In PDF document text
- http://capmar.eu/userfiles/file/56022567990.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098cc44a96e6---nuladuwusase.pdfIn PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/7b5eb5defe37683b008f14007717a7a0/sipunovulofa.pdfIn PDF document text
- http://thetuckerfamilyreunion.com/clients/67950/File/pudujilupufo.pdfIn PDF document text
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b807637437b---xevofuwivonegisuguzurepar.pdfIn PDF document text
- http://imaginove.eu/data/Files/27082883072.pdfIn PDF document text
- http://fkjz.cn/upload/files/2021/07/202107051153511263.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607379f1b468c---30299025635.pdfIn PDF document text
- http://saigonford3s.com/uploads/2021-08-29/images/files/7861827663.pdfIn PDF document text
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/cvgel59573oh0350dvd7ch28r1/80064323114.pdfIn PDF document text
- https://orrizon.ru/images/file/60683743616.pdfIn PDF document text
- http://macierz-grodziec.org/files/file/baworejogiluga.pdfIn PDF document text
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/c7823f98b6d22ac0a5ca6f9c09f7ff1a/25904975277.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/ec482dbeda740d431bb01498e331fdc3/3673243099.pdfIn PDF document text
- https://economiadecomunion.com/ckfinder/userfiles/files/73632335305.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/50be72c8c1396e31731b3dff2f5c65d8/xaren.pdfIn PDF document text
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e21df131b25---wefego.pdfIn PDF document text
- https://nevisnews.com/userfiles/94690994788.pdfIn PDF document text
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/zedibuginabuxatixakizatin.pdfIn PDF document text
- http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/54292522603.pdfIn PDF document text
- http://travelbilet.ru/sites/default/files/file/gosaforenafizatoko.pdfIn PDF document text
- http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081e9b168f46---tifixikijileba.pdfIn PDF document text
- http://gocreate.termall.pl/upload/fck/file/jizewarawinunonolowoturu.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160813cc9bf54a---folanadakag.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=anemia+que+es+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_off0000c792.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC792 | 17920 bytes |
SHA-256: ff117f5c78acc52954b0907025d0ae349fd4199c5befea80fa6a9d6142ea5795 |
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font_01_sfnt_off0000f52d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF52D | 10524 bytes |
SHA-256: 7a08ea675f3a223af3efe9f855359564f016a72ddfb226640ccb9ec93159a0d8 |
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font_02_sfnt_off00010ce2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CE2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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