MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple heuristics indicating malicious intent, including a link farm pointing to a compromised CMS upload and a remote support tool lure. The ML classifier strongly flagged this PDF as malicious, and ClamAV detected it as a phishing trojan. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to trick the user into downloading a secondary payload, likely disguised as a remote support application.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 8
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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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://phuocthuan.vn/images/pic/file/nekesoloranarov.pdf
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c32afeabd1---jubugokabifazuvoti.pdf
- http://botosani.ro/img/uploads/file/34753936929.pdf
- https://smithsgame.com/calisma2/files/uploads/92346315803.pdf
- https://peterdegendt.be/file/48433070280.pdf
- http://wintec-samu.hu/uploads/files/66773373373.pdf
- http://aliceinformaticasrl.com/user/pages/56834959418.pdf
- http://cngwalk.com/fckeditor/userfiles/image/766259008.pdf
- http://yamamatoen-wanwan.jp/ckfinder/userfiles/files/85156191827.pdf
- https://gastrotest.co/ckfinder/userfiles/files/redikigabazurenar.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608280632aabf---sikimojodafakilumugonosa.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607862fc088a0---82378252666.pdf
- http://salinasouth.com/clients/11073/File/bebofesorixejidunuwivudon.pdf
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/deaa4568770acab41a31b20580181d24/kazizigatelupeni.pdf
- http://sehs67.com/clients/e/e0/e078d4d0076166a7bb489ca3b3a583ab/File/lizej.pdf
- http://15fratrowreunion.com/clients/2/2b/2b18ccadde375fd95e9ac2d5db5aaa67/File/vulorawisolevojusidobunun.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a596ee1fc88---82767947164.pdf
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/2m67mgpndql9e5qdu4uge2bhvc/tuvebugamevewujuxesupim.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078320da2537---gilolir.pdf
- http://derma-dts.de/files/file/jukazojamale.pdf
- http://stalmost.pl/userfiles/file/sagigogej.pdf
- http://cck-brno.cz/ckfinder/userfiles/files/tezaxadigaboxid.pdf
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/phho2a4qog0e3tr1082k6o3gds/feradovajemapoba.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16089018931c02---14553248262.pdf
- http://limitlessillusion.com/wp-content/plugins/super-forms/uploads/php/files/0da6407d67d28a9c516baaeb575b0bf7/japiwesavomusudupobojob.pdf
- https://okna-stv.ru/userfiles/files/lufiduvagedip.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=grizzly%27s+chimney+sweep
- 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_off0000e166.bin6312e6a755dc113341350fbbd9737a4a565f038c28373d1283bb08ef366d4566 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE166 | 16624 bytes |
font_01_sfnt_off00010c51.bina09f8ba53fc658452af71c62f83aca302a9d6a9f7bd9dd2c0563ef33368d6800 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C51 | 10592 bytes |
font_02_sfnt_off00012470.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12470 | 16792 bytes |
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