MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
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 pointing to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, suggesting it serves primarily as a container for these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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://inwebjor.ru/uplcv?utm_term=le+futur+simple+exercices+cm2+pdf PDF link annotation
- https://drlanda.hu/user/file/35955328909.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9fb652d420---70098735707.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/29537be75b1fa039a2cda0738c4282b9/51922501899.pdfIn PDF document text
- https://hizlipin.com/calisma2/files/uploads/depunafufibigevadaxirenu.pdfIn PDF document text
- http://deepakbatteries.com/uploads/file/fazusivad.pdfIn PDF document text
- http://bulgankhangai.mn/userfiles/files/sigitowe.pdfIn PDF document text
- http://sevinctekstil.com/resimler/files/mavenagigez.pdfIn PDF document text
- http://www.knickmeier.net/images/pageimg/file/22266274881.pdfIn PDF document text
- http://hydrem.ru/images/file/wapazilafekonutonagedapu.pdfIn PDF document text
- http://asude.istanbul/ck_images/files/zokaf.pdfIn PDF document text
- http://cuatro-pr.org/sites/default/files/file/30442179036.pdfIn PDF document text
- https://fleschimmo.lu/userfiles/files/kifemaf.pdfIn PDF document text
- https://aspirans.com/files/file/zaxez.pdfIn PDF document text
- https://orangcar.com/app/webroot/upload/files/84397133566.pdfIn PDF document text
- http://ohsongpharm.com/ckfinder/userfiles/files/numobilapenilefelipa.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b64b006f4---roloduxewutulofetebelef.pdfIn PDF document text
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/5c4400aec712e699a2769ce8da329fa2/42151231168.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607db05047781---24364189628.pdfIn PDF document text
- http://njchemland.com/upload/files/40959755062.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_off0000cd37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD37 | 10672 bytes |
SHA-256: 929aaebf02b0e2e9e22db3709683483cd41465e8a317c5ba301235a95a23eae6 |
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font_01_sfnt_off0000e5c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5C3 | 19784 bytes |
SHA-256: a042cb8c7784c420bd52464cd6f3af40474a45ce05a16e2348d4fa6270c5443b |
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font_02_sfnt_off00011853.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11853 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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