MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a phishing or malware distribution scheme. The PDF structure itself appears to be a link farm, designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://krisoc.ru/uplcv?utm_term=risk+management+assignment+sample+pdf PDF link annotation
- http://utcsp2.rustyramone.com/uploads/files/jujafivitijosakolibew.pdfIn PDF document text
- http://webursitet.org/Files/file/tebejuliwizibo.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/e93d99894d5712d111a3b55b6c57f6ed/97250550339.pdfIn PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/6613e8c7f7613fe34018ed716edd434c/3390018243.pdfIn PDF document text
- http://ativn.com/upload/file/nizeroxa.pdfIn PDF document text
- https://artistaone.co/userfiles/files/11344725226.pdfIn PDF document text
- http://aaykpn.com/uploads/editor/files/57311526826.pdfIn PDF document text
- https://shreeaksharinternational.com/webroot/img/userfiles/files/51538523602.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/ks0u21uvavf34issddd4hhp2b6/vaxunuzafozodoni.pdfIn PDF document text
- http://ecohost.ru/pics/images/file/16886289599.pdfIn PDF document text
- http://parfumerieindex.nl/images/uploads/rojosukipemelobanexalo.pdfIn PDF document text
- http://chapraptti.org/userfiles/file/3376244053.pdfIn PDF document text
- http://otworz-biuro-podrozy.pl/userfiles/file/wojasemefejibegow.pdfIn PDF document text
- https://ww170001.linebot.net/upfile/files/20211002175420.pdfIn PDF document text
- http://rosabaum.de/web/editor/files/wimulugapanufiv.pdfIn PDF document text
- http://geombiagioschettino.eu/userfiles/files/22400543413.pdfIn PDF document text
- http://xdankfort.com/rhnew/file/93629856282.pdfIn PDF document text
- http://workontext.ru/media/file/88291791725.pdfIn PDF document text
- https://oolong-dining-co.com/webroot/editor-uploads/files/felibipirexupa.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613248e2bbdd0---wojivolatanuwugafiweke.pdfIn PDF document text
- https://guijek.com/userfiles/file/punisalumo.pdfIn PDF document text
- https://responsible-tourism-alliance.com/content_file/files/fusaladafuvoduxovu.pdfIn PDF document text
- http://cuanhuadanang.vn/uploads/image/files/kojunawesavofumamaruk.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_off0000b408.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB408 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC1F | 10760 bytes |
SHA-256: 91c9ac237f1387b0a2dcf9047b3af154383fc80d1a7f244465e1730aa7524c5e |
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font_02_sfnt_off0000e497.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE497 | 16748 bytes |
SHA-256: 8fdb6238120e2325ff3b84174b71ae04e2dd5865164b6c23711d2ded9a08ae21 |
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