MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to disposable domains or are used in a link farm pattern, suggesting an attempt to obscure the final destination. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a large number of distinct hosts and links, characteristic of phishing or malware distribution campaigns. No scripts were extracted, but the overall structure and heuristics point to a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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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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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://stapper.de/sites/default/files/userfilesfile/80174787259.pdf In PDF document text
- http://styrexon.cz/userfiles/file/28871142115.pdfIn PDF document text
- http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/62089308123.pdfIn PDF document text
- http://kkslavicin.cz/sites/default/files/file/30135253204.pdfIn PDF document text
- https://hotelcorona.ro/files/tugilaxuwabib.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134cdf62f429---lizesinekinupinaxa.pdfIn PDF document text
- http://littlepearlbooks.in/data/eimages/file/36468105689.pdfIn PDF document text
- https://optimustelecoms.com/ckfinder/userfiles/files/votosunixakotetekozilud.pdfIn PDF document text
- http://placidlakes.com/larpm/uploads/file/86671818007.pdfIn PDF document text
- http://sieuthimaynhapkhau.com/upload/files/38685422853.pdfIn PDF document text
- http://teamhead.net/userfiles/file/68951783626.pdfIn PDF document text
- http://ain.proximeo.com/ckfinder/userfiles/files/32405467591.pdfIn PDF document text
- https://joinvita.com/neu/userfiles/file/24578572605.pdfIn PDF document text
- http://footstepfloor.com/upfiles/files/guxemawaxojikimavorobusob.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613d21edebd30---pofotudavozelobitu.pdfIn PDF document text
- http://whitedwarf.ru/public/images/ckfinder/files/18824017197.pdfIn PDF document text
- http://hosungtour.net/FileData/ckfinder/files/20210904_494311BE277067D4.pdfIn PDF document text
- http://mygiftltd.com/userfiles/file/fobet.pdfIn PDF document text
- http://northmarking.com/userfiles/files/94842519254.pdfIn PDF document text
- https://dreptultau.hotnews.md/upload/userfiles/files/laponu.pdfIn PDF document text
- http://fresh-j.info/images/uploadedimages/file/64728942970.pdfIn PDF document text
- http://giaydantuongphongngudep.com/images/news/file/rogudiniki.pdfIn PDF document text
- http://pentas.eu/userfiles/file/rewazajuxatixomuman.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=transfer+files+from+phone+to+android+tvPDF 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_off0000f0fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0FA | 10792 bytes |
SHA-256: 808b34457558d9798a794d14c0e6ee19e64713a5705b99c713fd7795daabf94f |
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font_01_sfnt_off000109a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109A3 | 17392 bytes |
SHA-256: 63f07499b4e9d925b2928e6e463a9bed4fa73ab0a402b52e6be96d82fea15b5f |
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font_02_sfnt_off000136b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136B2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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