MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a malicious PDF, as indicated by ML and ClamAV detections. It contains numerous URLs, many of which are part of a link farm strategy, suggesting a phishing or malware distribution attempt. The PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics confirm the presence of external links and a link farm on disposable hosting, pointing towards a phishing or credential harvesting campaign. The ML_NYX_PDF_MALICIOUS score of 0.995125 strongly supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://oniceh.ru/uplcv?utm_term=book+of+alien+races+pdf PDF link annotation
- https://jamuiboe.com/webroot/upload_media/78170728675.pdfIn PDF document text
- https://medius.sk/userfiles/file/92268243078.pdfIn PDF document text
- https://mtestbd.com/assets/uploads/files/54215423429.pdfIn PDF document text
- http://teormech.ru/teormech/usrimg/file/42762080461.pdfIn PDF document text
- http://mcap.cz/images/uploadedimages/file/25550579204.pdfIn PDF document text
- https://aimara-bg.com/userfiles/file/nagevoxanorel.pdfIn PDF document text
- http://warmistore.com/userfiles/file/zarizudukupumubitazowa.pdfIn PDF document text
- http://baracenter.be/userfiles/file/28391469841.pdfIn PDF document text
- http://matsonconstruction.net/userfiles/file/82136955998.pdfIn PDF document text
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16134f80e84f0c---76514150470.pdfPDF link annotation
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/5916721092.pdfIn PDF document text
- https://pristineleather.com/userfiles/file/14443811175.pdfIn PDF document text
- http://coaching-scolaire.net/userfiles/file/tomoloduzubikade.pdfIn PDF document text
- http://agavietnam.com/img/files/92895849941.pdfIn PDF document text
- http://camel-republic.com/media/userfiles/files/xaniwojarasiwelukagax.pdfIn PDF document text
- http://mlight.cz/archiv/file/gopelel.pdfIn PDF document text
- http://asiadomainstore.com/userfiles/file/46820956197.pdfIn PDF document text
- http://laptopplus.be/app/webroot/files/userfiles/files/lununikilirozuvezoxesefon.pdfIn PDF document text
- http://fzcce.com/aimgs/uload/files/pesuvexutusokekeg.pdfIn PDF document text
- http://banglatalkies.com/dynamic-images/cms/file/fudedasu.pdfIn PDF document text
- http://xn--knstlerische-biografie-arbeit-lbd.ch/userfiles/files/15253476959.pdfIn PDF document text
- https://consultemergingmarkets.cubsindia.com/files/40675053076.pdfIn PDF document text
- https://pabxlg.com/userfiles/file/fumovowu.pdfIn PDF document text
- http://teamtrinity.net/trinitya/file/putujusifelinigasivepula.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_off0000af87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF87 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c799.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC799 | 14704 bytes |
SHA-256: a95f645df42b94c8a10f26df19afddd863119d681d0dfacea9254da18848efa3 |
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font_02_sfnt_off0000ec6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC6A | 10660 bytes |
SHA-256: a28674f02334e7620b16dbdc0623cf55f76f41ed3440750a260406e863d61ae0 |
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