MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristics indicate it contains a link farm pointing to compromised WordPress sites and a lure to execute commands via the clipboard. This suggests the document is designed to trick the user into running malicious code, likely by copying and pasting commands into a shell, which aligns with spearphishing attachment tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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://giasuthanhdat.vn/Images_upload/files/44177134289.pdf
- https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/5b75v7rtt3ca9ligq8ebodtjuk/lexarabumawenuviregeza.pdf
- http://ogbchurch.com/clients/880797/File/42596347408.pdf
- http://iltorg.ru/upload/file/wadogavutasaxunasuzewed.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c241474bd9---54068128842.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e54150338d---51440804711.pdf
- https://tenshinorchids.com/FCKeditor_upload/file/74308421052.pdf
- http://curry-box-deluxe.de/userfiles/file/71276802372.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f239b38cb0c---48641214763.pdf
- https://rotitelor.com/contents//files/6948967940.pdf
- http://baigeleather.com/userfiles/file/42587297603.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16072328dc813b---17198041368.pdf
- http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/aa11e1627bb913ac263b51fd6cc2fee7/75897882574.pdf
- http://metabolit-plus.ru/files/file/tolojonijoxosiva.pdf
- http://15fratrowreunion.com/clients/2/2b/2b18ccadde375fd95e9ac2d5db5aaa67/File/xapazagulitomeda.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/fcbf595afb8268775351b690f2f60ba7/25869579669.pdf
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/6f8054b3cc8ee98932b2b321c1497f5c/47989302723.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f1f832d46---zogese.pdf
- http://cerescommoditiesltd.com/Images_upload/files/rejiwosaridelabem.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a90aefd3802---50382319718.pdf
- https://dietacud.eu/upload/file/xarotirovugexotakumeli.pdf
- https://recapress.com/ckfinder/userfiles/files/sorobulomilubes.pdf
- http://emurus.jp/userfiles/file/mejonapapuwunafulogerito.pdf
- http://domholidays.com/userfiles/file/tivixosusopotu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=whats+good+at+kung+fu+tea
- 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_off0000f308.bin847604474c0bd05a3982c4c3de1a13349a93bcd67228dc6727344ba2fa67b75a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF308 | 17156 bytes |
font_01_sfnt_off00011fd9.bin9ecc856e0a41b4736f2d6658dd74563be2a9234415fd87fc0a098513c1af9227 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FD9 | 10580 bytes |
font_02_sfnt_off000137d4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137D4 | 16792 bytes |
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