MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external URLs, many of which point to disposable hosting or compromised CMS uploads, indicating a link farm designed to redirect users to potentially malicious sites. The ClamAV detection and ML classifier further support its malicious nature, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://allytemp.ru/uplcv?utm_term=how+to+switch+phone+storage+to+sd+card PDF link annotation
- http://hadt.vn/upload/files/39980342884.pdfIn PDF document text
- http://otczenacts.com/media/files/ligafakogidifavatefuj.pdfIn PDF document text
- https://www.groupe-coelho.fr/ckfinder/userfiles/files/82577929965.pdfIn PDF document text
- http://infoegrafica.com/userfiles/files/5130464806.pdfIn PDF document text
- http://www.masozilina.sk/ckfinder/userfiles/files/59195584910.pdfIn PDF document text
- https://cytokin.ca/upload/editor/file/91799279457.pdfIn PDF document text
- http://chukguwang.com/files/fckeditor/file/54940928095.pdfIn PDF document text
- https://aynadakikemalizm.com/resimler/files/buraf.pdfIn PDF document text
- http://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/67527539165.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d2e9658966---28993235996.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613497de4412e---72558310247.pdfIn PDF document text
- http://muzeumostrowiec.pl/obrazy/file/73249477555.pdfIn PDF document text
- https://careerexpo.alljobsinliberia.com/ckfinder/userfiles/files/89619043130.pdfIn PDF document text
- http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/19126089237.pdfIn PDF document text
- https://eghamatyab.com/basefile/bainbookcom/files/toxomo.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/1298718395a6d7d2a449d19ffa608db9/vuvijusuxilezefi.pdfIn PDF document text
- https://theloneranger.tv/clients/loneranger/ckfinder/userfiles/files/gunagilezosatu.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16149757fafc98---73236279230.pdfIn PDF document text
- http://capri.lt/userfiles/files/22627999289.pdfIn PDF document text
- http://daisin1977.com/js/upload/files/17486662262.pdfIn PDF document text
- http://qlionshousing.ca/userfiles/file/39636914081.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://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_off0000bdc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDC4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d5db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5DB | 10824 bytes |
SHA-256: c3e93fc7a35d50fa041a5086b2dd730a404004595c031bf960cc786321d11c96 |
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font_02_sfnt_off0000ee9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE9A | 18044 bytes |
SHA-256: b47bfe23f42adaad645a9154756b7243002018ed377f255a709acebae49e4c82 |
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