MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and links to compromised WordPress sites, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document, likely serving as a lure to external malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://cructi.ru/uplcv?utm_term=best+sports+quiz+questions+and+answers
- http://tpdw.pl/userfiles/file/zanoforegafe.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160735362edc27---69721409661.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/q9n12k6th1bv18bt3k5kgenudh/15141726635.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0c3f9798a7---62167057621.pdf
- http://quickvideo.nl/userfiles/file/74149886049.pdf
- http://geoodwierty.pl/files/file/pifiga.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1dfb9d1d3e---77430587602.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/ged3o9a8a78fhmtcsjtrc3lcdh/batoxizorutowij.pdf
- http://revucue.com/ckfinder/userfiles/files/fedefugatiropadulo.pdf
- http://coffee33.ru/archive/file/99287333896.pdf
- http://bocghebinhduong.com/media/ftp/file/resare.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e4d6758f3---19935586923.pdf
- http://ngor2-3.com/file_media/file_image/file/43481672451.pdf
- http://ranaghatpchsschool.org/userfiles/file/pujafo.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/kb857qgnjju71lvo07urvhvco5/sawesizisi.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160726be536f0d---54608183484.pdf
- http://paulbwatkinslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/10746406696.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7bc0700d6c---bomuzadaz.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0c534ba80e---94812799838.pdf
- https://vandolderskb.com/images/usr/teratomedo.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/35422463716.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/21b91c5b58a9dd8db65ba46375667a87/sepufekawok.pdf
- http://cosmic-kino.ru/sadm_files/mulizenuxitosir.pdf
- http://congluc.com/upload/files/46827038463.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f904.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF904 | 16792 bytes |
font_01_sfnt_off00011116.bin0dc235e396ab16857c23eef7e0bab71a054bd45f31c5adc7b1fde282fa692767 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11116 | 17660 bytes |
font_02_sfnt_off00013f0f.binb492914df8ac46ae2807996a4ad2a18ec861ab08c9210225f679b1244b1d436f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F0F | 10784 bytes |
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