MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating it likely exploits a vulnerability to execute code. The document body is heavily obfuscated, but the presence of numerous external links, many pointing to PDF files on disposable domains, suggests a phishing or malware distribution attempt. The primary IOCs are the various PDF URLs found within the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://master-br.ru/img/file/68449799303.pdf In PDF document text
- http://azseal.net/uploads/userfiles/file/63301354399.pdfIn PDF document text
- https://tjpapigroup3.com/contents/files/78807707038.pdfIn PDF document text
- http://biznesfishki.ru/files/userfiles/files/zimilipanet.pdfIn PDF document text
- https://yarpaket.ru/userfiles/file/21985719916.pdfIn PDF document text
- http://jezirka-biobazeny.cz/UserFiles/File/14885105166.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/94272326672.pdfIn PDF document text
- http://permagnet.com/upload_files/file/210909220649432549y6oku5.pdfIn PDF document text
- https://kheops-so.fr/ckfinder/userfiles/files/89885720499.pdfIn PDF document text
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/ccf02881c879fef1ec5e98a1a0babf3e/ketukewoxewajiwutu.pdfIn PDF document text
- http://cistenivytahu.cz/upload/file/11341412726.pdfIn PDF document text
- https://ycb.one/pro_pic/files/xaguwareropudex.pdfIn PDF document text
- http://arcenevents.nl/site/upload/files/57062474522.pdfIn PDF document text
- https://dailyiat.com/html_upload/file/lanajeput.pdfIn PDF document text
- http://urbanposthotel.com/admin/ckfinder/userfiles/files/48770560045.pdfIn PDF document text
- http://osayit.com/images/file/44351752280.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/9adb53ece16f0ee6a62fd968edb9dc15/zumitijarabejawapokejiw.pdfIn PDF document text
- https://profitaler.com/UserFiles/file/25739064554.pdfIn PDF document text
- http://transcash.com/ci/userfiles/files/91916667820.pdfIn PDF document text
- http://studiozammuner.eu/userfiles/files/25878402431.pdfIn PDF document text
- https://cmfnepal.org/userfiles/files/sajozuwonafox.pdfIn PDF document text
- https://oncallanatomist.org/ckfinder/userfiles/files/35957613239.pdfIn PDF document text
- http://jcbcharpentebois.com/ressource/site-image/files/vufeda.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=life+360+pro+apkPDF link annotation
- 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_off0000ad63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD63 | 10448 bytes |
SHA-256: 456a70bae763520f1e5a53f5ecf5621bd4eca1597cbaeb7d5c41db090e7ee84e |
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font_01_sfnt_off0000c53c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC53C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000dd4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4E | 15792 bytes |
SHA-256: ea9a11d3c5eaf1e9089d2f70c49578443785f2ca50dcebbf278ee71cabe0a248 |
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