MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URIs, many of which are linked to disposable hosting and employ UTM parameters, suggests a phishing or malware distribution campaign. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document may be instructing users to open a password-protected archive, a common tactic to bypass gateway security.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://crysiq.ru/uplcv?utm_term=katzung+pharmacology+14th+edition+pdf+download PDF link annotation
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb573e3343---baketutapibaxalizineteki.pdfIn PDF document text
- https://www.rapn.ru/ckfinder/userfiles/files/lakegikidiraxita.pdfIn PDF document text
- http://seibyou-koujien.com/files/files/juwimumilozidajis.pdfIn PDF document text
- http://thegioixedap.net/upload/files/wagazazemow.pdfIn PDF document text
- https://villadelauca.com/userfiles/file/35974331164.pdfIn PDF document text
- https://luminex.pl/upload/file/zazatalopatuvugivobijesa.pdfIn PDF document text
- http://otevrel.eu/ckfinder/userfiles/files/pezojumeze.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135357b63958---zasabapid.pdfIn PDF document text
- http://timnhanhonline.com/upload/files/bedakobuliw.pdfIn PDF document text
- http://pusancard.com/userData/board/file/tasir.pdfIn PDF document text
- http://zussobrance.sk/grafika/dokumenty/17919235902.pdfIn PDF document text
- http://playoz.com/ckfinder/userfiles/files/61639826604.pdfIn PDF document text
- http://thucphamchucnangmy.vn/uploads/files/94492097068.pdfIn PDF document text
- https://hyundainhapkhau.vn/upload/files/degemetiretilusizagozap.pdfIn PDF document text
- https://vrrc.heart.net.tw/ckfinder/ckfiles/files/nelevizozakuwivosaguvubu.pdfIn PDF document text
- https://asharfilalkulfi.com/ckfinder/userfiles/files/xugumovogo.pdfIn PDF document text
- https://kawanmto.net/contents/files/43661792950.pdfIn PDF document text
- https://digiconelectronics.com/media/91449561013.pdfIn PDF document text
- http://colegiosantarosa.com/uploads/imagem/file/95741902260.pdfIn PDF document text
- https://doctornhospital.com/banglanews24/editorsfiles/files/jogufakedu.pdfIn PDF document text
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/78613510320.pdfIn PDF document text
- http://angel-conference.org/upload_fck/file/2021-9-11/20210911171801985996.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/denedemogominafaxave.pdfIn PDF document text
- https://biocoop.legreniervert.fr/ckfinder/userfiles/files/tabuvapugo.pdfIn PDF document text
- https://frigosztufi.ro/ckfinder/userfiles/files/nopizuzetufudofasera.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_off0000dcc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCC2 | 11380 bytes |
SHA-256: ac9bebd928ac64c924d13736d35ad599b07f0f997885d314897916ee20c1bafe |
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font_01_sfnt_off0000f75a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF75A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F6C | 17784 bytes |
SHA-256: 7899bd4e966d8a03f534628970d33785f3558985990f86d181d56280a2fdda06 |
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