MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm, suggesting a phishing or malware distribution scheme. The heuristic 'SE_LOLBIN_RUN_COMMAND' also indicates potential command execution, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://cructi.ru/uplcv?utm_term=splinter+cell+conviction+apk+download PDF link annotation
- http://michellenevinracing.com/FCKeditor/file/60787308033.pdfIn PDF document text
- http://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/kokifowiwelu.pdfIn PDF document text
- http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/1432770090.pdfIn PDF document text
- https://kodcomputers.ro/2664/uploads/93578610464.pdfIn PDF document text
- http://niengrangchuyensau.com/upload/contentFile/file/56231329080.pdfIn PDF document text
- https://tumsad.org/img/editor/image/file/favikegojo.pdfIn PDF document text
- http://thepokeluau.com/uploads/files/tujukewifisukawiwiji.pdfIn PDF document text
- https://hopadive.cz/ckfinder/userfiles/files/titafupudoges.pdfIn PDF document text
- https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/61767120417.pdfIn PDF document text
- http://uklearningnetwork.com/userfiles/file/36221962044.pdfIn PDF document text
- http://dfwsedan.com/nbloom/fckuploads/file/83901720117.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/amag6830j2lnan2364so49nqsb/tifojisimodevinimufu.pdfIn PDF document text
- http://phone-server.com/userfiles/file/83885176529.pdfIn PDF document text
- https://luminex.pl/upload/file/vexuxaxav.pdfIn PDF document text
- http://domexpo.ru/up/file/61193741608.pdfIn PDF document text
- http://93564497.com/userfiles/46671160791.pdfIn PDF document text
- http://traslochimontalto.it/userfiles/files/59589294800.pdfIn PDF document text
- http://stfurnimart.com/file_media/file_image/file/rurijaxupejokisamedizul.pdfIn PDF document text
- http://keramann.ru/uploads/files/fuboguxaxo.pdfIn PDF document text
- http://generalaudit.pl/eurostyl/photos/file/80984894089.pdfIn PDF document text
- http://qdcmd.com/data/files/84664667124.pdfIn PDF document text
- http://printrun.nl/userfiles/files/6680654560.pdfIn PDF document text
- https://sgcaregiver.org/contents/files/majanodikiwateluna.pdfIn macro / runtime command snippet
- http://lignumweb.com/site/webroot/uploads/files/doriwuluxunum.pdfIn PDF document text
- http://printrun.nl/userfiIn macro / runtime command snippet
- 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_off0000da05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA05 | 18480 bytes |
SHA-256: 3c1a7c851fbef16563208a39f6580c710bba082107e4352f7cd88198e0386ea0 |
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font_01_sfnt_off000109bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000121d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D3 | 10656 bytes |
SHA-256: 9e3116a4afffc519d2466d910bd27d95a4d3de6d833f6f03ea0479c8281cd352 |
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