MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a large number of embedded URLs, many of which are hosted on disposable domains, suggesting a link farm or phishing campaign. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating the document is designed to redirect users to multiple external sites. No scripts were extracted, but the overall structure and URL distribution point towards a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://irlanc.ru/uplcv?utm_term=bts+on+sia PDF link annotation
- http://aelma.com/sites/default/userfiles/file/jigudujowavolugiro.pdfIn PDF document text
- https://onlinendttraining.com/files/juwakupolunukebedo.pdfIn PDF document text
- https://pingthye.com/userfiles/files/potedubidevixelo.pdfIn PDF document text
- http://lnhaihui.com/userfiles/file/20210914082558_2003632356.pdfIn PDF document text
- http://paramountswimwear.com/userfiles/files/42391651920.pdfIn PDF document text
- http://gz-chengeng.com/uploadfile/files/tafobotumeveku.pdfIn PDF document text
- http://orderkai.com/uploads/files/tamokaxukatadusejeneveni.pdfIn PDF document text
- https://sunpower.lv/ckfinder/userfiles/files/38353520415.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161406be01c538---11064997364.pdfIn PDF document text
- https://digicpictures.com/downloads/liwuxesejozakexupefuz.pdfIn PDF document text
- https://etravelbox.com/scgtest/team-explore/uploads/files/lediruluzozo.pdfIn PDF document text
- https://manorhair.com/uploads/files/202109031145155856.pdfIn PDF document text
- http://studiotecnicoligioni.com/userfiles/files/vufate.pdfIn PDF document text
- http://sake2metustin.com/uploads/files/gofalupuzikexitinoveki.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/savovaregoli.pdfIn PDF document text
- https://liur-krd.ru/userfiles/file/nopumixe.pdfIn PDF document text
- http://palestraarkadia.it/userfiles/files/xivobifuvaximu.pdfIn PDF document text
- http://daiichigroup.net/uploads/news_file/xanimoxefamolenidumafogaf.pdfIn PDF document text
- http://massageindex.nl/images/uploads/18424954459.pdfIn PDF document text
- https://gencshow.com/upload/ckfinder/files/kokax.pdfIn PDF document text
- http://tjchenxing.com/filespath/files/20210903012551.pdfIn PDF document text
- https://flcevent.fcu.edu.tw/plugin/ce1/ckfinder/userfiles/files/20210902083617.pdfIn PDF document text
- https://gitedu.in/ckfinder/userfiles/files/detaxivosilamugujutifubox.pdfIn PDF document text
- http://anais.terminarz.online/kosmetyczka/krakow/files/58291966812.pdfIn PDF document text
- https://hiroyoung.com/data/files/57389340626.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_off0000b282.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB282 | 18496 bytes |
SHA-256: 8150ee4ee0e4cafdc7288709df03bc1ed8c7c957b6be23c1ae77aa0cb8b742f6 |
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font_01_sfnt_off0000e2cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2CB | 9876 bytes |
SHA-256: d2c5a601f54f72e927c415900d5db2976ffb9fb90e6bae9c4b3d739eecc161fb |
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font_02_sfnt_off0000f8b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8B5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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