MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, with a heuristic identifying it as a link farm on disposable hosting. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a high volume of links pointing to distinct, potentially disposable hosts, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the presence of numerous external URIs points to a likely attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://ketchas.ru/uplcv?utm_term=tomato+gravy+for+meatloaf PDF link annotation
- http://giga.sk/storage/file/guvalexanizupebu.pdfIn PDF document text
- https://bahia-group.com/ckfinder/userfiles/files/korelovebodapo.pdfIn PDF document text
- http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/35499510735.pdfIn PDF document text
- http://shoreluxurylimos.com/userfiles/files/35806934547.pdfIn PDF document text
- http://skupka54.ru/upload/m/62226438695.pdfIn PDF document text
- https://granitabrasive.com/editor_up/9339201831.pdfIn PDF document text
- https://portalbime.com/UploadedFiles/New/file/4431951371.pdfIn PDF document text
- http://rialta.ie/userfiles/files/77368846237.pdfIn PDF document text
- https://parfumzone.ro/files/file/molefijimode.pdfIn PDF document text
- http://trustarshida.co/cache/fck_files/file/laxezezozuto.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/40401919946.pdfIn PDF document text
- http://desiaussies.com/ckeditor/uploads/files/84835626079.pdfIn PDF document text
- https://tidurmalam.com/contents/files/waforuj.pdfIn PDF document text
- http://imhkayseri.com/resimler/files/93973649873.pdfIn PDF document text
- https://drddvichitra.com/userfiles/file/69433111356.pdfIn PDF document text
- https://riminabda.sk/userfiles/file/vekoxazegowerazoma.pdfIn PDF document text
- http://tungalag.mn/userfiles/files/kokekasokereva.pdfIn PDF document text
- http://inggeo.eu/userfiles/files/22278854977.pdfIn PDF document text
- https://htcpost.vn/vietpost.vn/img_content/file/zuberewutarejuvipa.pdfIn PDF document text
- http://inspeq.eu/public/files/gokunalo.pdfIn PDF document text
- http://wamaeassociates.com/images/uploads/originals/file/43006526546.pdfIn PDF document text
- http://travellerisland.com/files/64772962872.pdfIn PDF document text
- https://masini-de-ambalat.ro/images/userfiles/pasowuve.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-9-12/20210912122851815674.pdfIn PDF document text
- http://volker-issmer.de/userfiles/file/19567017296.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_off0000b32e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB32E | 15436 bytes |
SHA-256: a6a8a1a118f82e272623a82ed88e28f88aefb33867795d0c5ecfbb35e6554b68 |
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font_01_sfnt_off0000da89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA89 | 10336 bytes |
SHA-256: 5cce30b035f85c17fed6e700b78b0a75aa8e8ae3de41cc8ca71b5d62231f15a5 |
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font_02_sfnt_off0000f1f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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