MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests it functions as a link farm, directing users to multiple disposable hosting sites. The embedded URLs, such as 'https://catamma.ru/uplcv?utm_term=how+to+recover+data+from+mi+phone+after+factory+reset', likely serve as lures for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://catamma.ru/uplcv?utm_term=how+to+recover+data+from+mi+phone+after+factory+reset PDF link annotation
- http://ayurvedicclinic.org/userfiles/file/11380594415.pdfIn PDF document text
- http://www.cenlafilm.com/siteuploads/editorimg/file/zozizederifanewa.pdfIn PDF document text
- https://melz-feu.ru/upload/61203947061.pdfIn PDF document text
- http://bbu.vn/Images_upload/files/30563468800.pdfIn PDF document text
- https://valenciamaids.com/userfiles/files/roranolebipukegojin.pdfIn PDF document text
- http://geometramaurotozzi.it/userfiles/files/rirosagike.pdfIn PDF document text
- https://ijaetis.org/ckfinder/userfiles/files/zemafibozomiz.pdfIn PDF document text
- https://tskrea.com/userfiles/file/figirinativo.pdfIn PDF document text
- http://kiajihlava.cz/UserFiles/File/94017078608.pdfIn PDF document text
- https://tuinvandecruys.be/file/49414044026.pdfIn PDF document text
- https://afmiletisim.afmiletisimajansi.info/resimler/files/tepebe.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/rekewerakefedumobeg.pdfIn PDF document text
- http://fatamorgana.fr/uploads/assets/file/jujosoris.pdfIn PDF document text
- http://ruben.pl/ckfinder/userfiles/files/kafibo.pdfIn PDF document text
- https://alzubidi.com/userfiles/files/viguwulakuloxafokif.pdfIn PDF document text
- http://marcth.pl/media/fck/file/88680433230.pdfIn PDF document text
- http://cyc.cz/pictures/clanky/files/kijoboxupafaxe.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613672c574dcb---93869806771.pdfIn PDF document text
- http://originalcheck.it/public/img_admin/file///posajojeturufavu.pdfIn PDF document text
- https://divanich96.ru/admin/ckfinder/userfiles/files/27125583739.pdfIn PDF document text
- http://mail-ex.net/userfiles/file/xegigunu.pdfIn PDF document text
- http://czyxchem.com/upload/files/79645146532.pdfIn PDF document text
- http://myarrahnu.com/mo_images/files/98709978115.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_off0000c3c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3C1 | 11096 bytes |
SHA-256: 0dad9255bc2b07857d06956c410cfad60d13c711c4c5401a5a725f2ae345e562 |
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font_01_sfnt_off0000dd77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD77 | 17436 bytes |
SHA-256: b44a3b8cd9df03c8ace528fca31c132ff99ac1f3c896b21f5531ec002f47810b |
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font_02_sfnt_off00010a90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A90 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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