MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting, suggesting an attempt to redirect users to malicious sites. The presence of these link farms and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://dalieuht.com/app/webroot/uploads/files/7050234930.pdf In PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fdc840944---20525152401.pdfIn PDF document text
- http://mebelhotel.ru/images/news/file/15455871135.pdfIn PDF document text
- https://christianbelieversmatrimony.com/web/christiansbelieversmatrimony/photos/ckeditor/files/17342089077.pdfIn PDF document text
- http://cgmorenanews.com.br/ckfinder/userfiles/files/wosuta.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/19p10uv4t2ospj2442kqbrpalm/lokibujenedederizeteba.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/afd6b97ede63585b42a2277e3bfec045/41815383039.pdfIn PDF document text
- https://akgoz.zemta.com/uploads/files/zaragemepuzuruxuvuzexizu.pdfIn PDF document text
- http://universalgroupautos.com/files/others/2243670233.pdfIn PDF document text
- https://nepalmicrofinancesummit.org/userfiles/files/97674998838.pdfIn PDF document text
- http://fotografoenricogiampieri.it/userfiles/files/84433847621.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/40383867115.pdfIn PDF document text
- https://bagstyle.uz/images/file/lajalotosonivurabidex.pdfIn PDF document text
- https://sdudyogtechnologies.in/ckfinder/userfiles/files/vavilopasi.pdfIn PDF document text
- http://salkim.com/userfiles/file/33262032448.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/61670829382.pdfIn PDF document text
- http://retrofotr.cz/files/file/kidugozitupawafuzo.pdfIn PDF document text
- http://eamenfaraz.com/cache/fck_files/file/18861787205.pdfIn PDF document text
- https://rosenstein.lu/userfiles/files/kivalemubebodojotejatedor.pdfIn PDF document text
- http://shlawllc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/puvigutipowotovusekoz.pdfIn PDF document text
- https://jamurgoreng.net/contents/files/tixuduzufure.pdfIn PDF document text
- https://lenaoyunlar.net/calisma2/files/uploads/92385265393.pdfIn PDF document text
- https://kaunas.cvzona.lt/resources/img/files/gebizinuwalu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=windows+8+pro+installation+keyPDF 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_off0000ecd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD1 | 10880 bytes |
SHA-256: 7ac3979c86690857e046063f809e9e4e10cf227739508592fe4b897785cb8737 |
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font_01_sfnt_off00010627.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10627 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E39 | 18932 bytes |
SHA-256: 3f563fa94649b28561e774ab31644c02ecdbb4982579258ff9e7470f173860ef |
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