MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous external links, many pointing to potentially disposable domains, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a strategy to obscure the true destination or distribute malicious content across multiple sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://kaus21.com/userData/board/file/99977031535.pdf In PDF document text
- https://nurea.se/currency/userfiles/file/1154507730.pdfIn PDF document text
- http://autofox.lt/ckfinder/userfiles/files/47174303555.pdfIn PDF document text
- http://hferrynetworks.com/FileData/ckfinder/files/20210901_FD6DC9BF57DC29B8.pdfIn PDF document text
- https://sakura-bashi.com/uploads/files/202109090403571442.pdfIn PDF document text
- https://norservis.com/files/files/dokawigenujusotugi.pdfIn PDF document text
- http://njbeihang.com/uploadfile/file///2021090516465958.pdfIn PDF document text
- https://kompaspt2.com/contents/files/gijagebamudovebunuwog.pdfIn PDF document text
- http://onlinecommerce.bg/uploads/pages/files/16315272611.pdfIn PDF document text
- http://prospekt-rostov.ru/ckfinder/userfiles/files/nurezejuxozakebalububa.pdfIn PDF document text
- https://nieruchomoscikomercyjne.co/files/file/64463264715.pdfIn PDF document text
- http://studiogalata.it/userfiles/files/55830205186.pdfIn PDF document text
- https://minipowerpack.net/upload/files/robipuwotozudosege.pdfIn PDF document text
- http://bmcnx.com/userfiles/file/xafuxewoxalugakemutel.pdfIn PDF document text
- https://adikkeempat.com/contents/files/fomakumigerewefiguxuwajoz.pdfIn PDF document text
- http://yangs-ns.com/ckfinder/userfiles/files/20210911080817.pdfIn PDF document text
- http://ydyb.com/filespath/files/20210909032411.pdfIn PDF document text
- http://geojeoceanhotel.com/userfiles/file/20210908181707.pdfIn PDF document text
- https://dehaventransportation.com/home/de/public_html/ckfinder/userfiles/files/97134160655.pdfIn PDF document text
- http://cachnhietwin.com/luutru/files/49681259659.pdfIn PDF document text
- https://shoppingplanet.ro/ckfinder/userfiles/files/50140477.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021090704541573499.pdfIn PDF document text
- http://ldksolar-officialliquidation.com/userfiles/files/puvebiv.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=stick+cricket+2+mod+apkPDF 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_off0000d7db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7DB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000efed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFED | 17972 bytes |
SHA-256: ad8f9939a3538d59f437b56f83120cffc74728e353417f95a409f85ed92cf9cb |
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font_02_sfnt_off00011e97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E97 | 10644 bytes |
SHA-256: 73f84bdb4a92023b9f18d0448f46ecb7e3a67d6d4855f6cf1f28487ad5178607 |
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