MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It impersonates a cloud document sharing service, a common lure for phishing attacks. The PDF contains numerous external URLs, many of which are part of a link farm, suggesting an attempt to host malicious content or redirect users to phishing pages. While no scripts were directly extracted, the nature of the PDF and its embedded URLs strongly indicate it's part of a phishing campaign, likely leading to credential theft or further malware download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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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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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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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=office+365+login+education PDF link annotation
- http://15881588.com/ckupload/files/64642145835.pdfIn PDF document text
- http://zuche0551.com/upload/file/sixobonamaborol.pdfIn PDF document text
- http://t-eamplus.de/web/editor/files/88493232460.pdfIn PDF document text
- http://naturalwonders.com/uploads/files/87969714604.pdfIn PDF document text
- http://hebammenglueck.de/ckfinder/userfiles/files/25449317470.pdfIn PDF document text
- http://rajasthanmetals.com/userfiles/file/88347234086.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/89049398480.pdfIn PDF document text
- https://km2804.com/ckupload/files/lidasosem.pdfIn PDF document text
- http://klccpa.com/userfiles/file/65765867079.pdfIn PDF document text
- http://brickform.cz/obrazky/files/23221308657.pdfIn PDF document text
- http://thanhnienxp.com/vietkiendo/upload/file/ligumutizulux.pdfIn PDF document text
- https://heatingboiler.ca/fck_upload/file/69394977964.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/18227752965.pdfIn PDF document text
- http://cluboutletmoto.net/campannas/file/57413302343.pdfIn PDF document text
- http://infiniti.e-library.tw/uploads/files/69614123803.pdfIn PDF document text
- https://idroilektriki.gr/files/file/nufezasunosonazadam.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/95671106082.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/7a48dd72e0838eb889465252e14f2aa5/bibegeniwaxonegasoxuma.pdfIn PDF document text
- http://ukrainski-rosyjski.pl/userfiles/file/3370574680.pdfIn PDF document text
- http://jpiano.net/userData/ebizro_board/file/26594703220.pdfIn PDF document text
- http://ambulatorioveterinarioilprato.eu/userfiles/files/99551740123.pdfIn PDF document text
- https://vetregistr.com/ckfinder/userfiles/files/rakixajonoburike.pdfIn PDF document text
- http://marathon-gexin.com/Uploadfiles/files/44086033246.pdfIn PDF document text
- http://kite-surf.sk/files/bulokoxelokosotomo.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_off0000da97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA97 | 10984 bytes |
SHA-256: 1b028574357690e3b990c434e9cf6f26702b1639b15fe445fee0a2e6ba1019cf |
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font_01_sfnt_off0000f409.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF409 | 18120 bytes |
SHA-256: 5cdb83785335afe3991cc5a927ee6135ca4cf5e1c44f1f9bf065d0618ce44c11 |
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font_02_sfnt_off00012385.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12385 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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