MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by multiple heuristics and a machine learning classifier as malicious, specifically identified as phishing or a trojan by ClamAV. It contains numerous embedded URLs pointing to external sites, many of which are hosted on disposable domains and appear to be part of a link farm designed to redirect users. The primary attack pattern involves luring users to these external sites, which is consistent with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://inwebjor.ru/uplcv?utm_term=types+of+piecewise+functions PDF link annotation
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16142893d8434b---feziluvepuvuviratatex.pdfIn PDF document text
- https://hamasataccessories.com/userfiles/files/67417195778.pdfIn PDF document text
- http://mutitar.com/user_img/files/58327237425.pdfIn PDF document text
- https://proxus.nl/file/vadubovovu.pdfIn PDF document text
- http://fsf-vastroad.com/userfiles/file/movaraxileribug.pdfIn PDF document text
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/68540820480.pdfIn PDF document text
- http://buffagiuseppeinfissi.com/userfiles/files/21979663915.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/58506351181.pdfIn PDF document text
- http://bayanairag.com/uploads/userfiles/files/26940449812.pdfIn PDF document text
- https://karpataljaturizmus.hu/upload/81434933985.pdfIn PDF document text
- http://artdental.hu/editor_up/51432265629.pdfIn PDF document text
- https://nstyapi.com/resimler/files/8844664956.pdfIn PDF document text
- http://arniestribu.com/campannas/file/tixatebenipitekonexe.pdfIn PDF document text
- https://slotsonline.ro/app/webroot/files/userfiles/files/86029140065.pdfIn PDF document text
- http://dierenwinkelindex.nl/images/uploads/58662478176.pdfIn PDF document text
- https://happycolaborativo.com/uploads/files/roraviwutuvodiku.pdfIn PDF document text
- http://strategie-online.net/catalogue_dynamique/file/47196323204.pdfIn PDF document text
- http://nensi.si/upload/file/79107895199.pdfIn PDF document text
- http://de.ruben.pl/ckfinder/userfiles/files/xilusozojoti.pdfIn PDF document text
- https://2-view.org/home/view/public_html/ckfinder/userfiles/files/8912051014.pdfIn PDF document text
- http://keystoparadise.com/userfiles/files/xibudi.pdfIn PDF document text
- http://bodybybodyology.com/ckfinder/userfiles/files/pomoxiwun.pdfIn PDF document text
- http://hai-bi.com/uploads/files/202109061831382547.pdfIn PDF document text
- http://zhuoxinlaw.com/userfiles/file/20210919054636_1565301375.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_off0000e2f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB06 | 17604 bytes |
SHA-256: ca79e78e1b35f0506c07609566211bdb651701f6b0f0565136e22eaff617d903 |
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font_02_sfnt_off000128ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128EE | 10428 bytes |
SHA-256: 4830bb79a72fc55a03556f0ac248b4250d6620a92623fcf4fcac492302bd3086 |
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