MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection, indicating malicious intent. The presence of numerous external URIs, many pointing to disposable hosting and acting as a link farm, suggests a phishing or malware distribution scheme. The malformed stream length heuristic further supports the exploitation of PDF vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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://coretry.ru/uplcv?utm_term=rockefeller+and+company PDF link annotation
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161580d9cb5e31---lojakokut.pdfIn PDF document text
- http://kodemari.info/data/files/77078427472.pdfIn PDF document text
- https://episcopiaoradiei.ro/files/nixorokixelazugefozona.pdfIn PDF document text
- https://www.pessin-location.fr/ckfinder/userfiles/files/jujirewuloniteti.pdfIn PDF document text
- https://www.marjojaspers.nl/ckfinder/userfiles/files/vajizakikigokusolufejova.pdfIn PDF document text
- https://abzesolar.com/uploads/files/48864026036.pdfIn PDF document text
- http://loveperfectionschool.com/upload/file/naguboda.pdfIn PDF document text
- http://gr-chem.com/upload/files/33855449498.pdfIn PDF document text
- http://saconsultancy.com/userfiles/file/9285346329.pdfIn PDF document text
- http://carlaschroyen.com/content_docs/runagezodilif.pdfIn PDF document text
- https://www.verimevzabavu.cz/ckfinder/userfiles/files/71394140006.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/99372150860.pdfIn PDF document text
- http://melly-incendie.fr/img_db/defeni.pdfIn PDF document text
- https://aviatroglo.fr/IMG/file/4516689406.pdfIn PDF document text
- https://projectmine.hu/ckfinder/userfiles/files/toxovowiroguxusakosede.pdfIn PDF document text
- http://meadescafe.com/userfiles/file/fojisajopadumuzokutiniri.pdfIn PDF document text
- https://rybczewice.pl/userfiles/file/98684952257.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/jimimegibofezejariwu.pdfIn PDF document text
- https://limpiezasinasel.com/userfiles/files/zozazexazuresemetanurifi.pdfIn PDF document text
- https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/tomururebonokodogixomumer.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161477bdf99a60---xufegurer.pdfIn PDF document text
- http://www.galiantsolutions.com/emailimages/file/76092790207.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_off0000b120.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB120 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c937.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC937 | 10676 bytes |
SHA-256: 433492cb52b8fa59524841aa282b41ac7ef11ac36f98133a3c35101ecd9afdec |
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font_02_sfnt_off0000e1ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1AB | 15092 bytes |
SHA-256: cfc820de363ba5753a04ce2abcb85a1e02e85861424dcec227bc517f8a1c9cfd |
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