MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
This PDF document was flagged by a machine learning classifier and ClamAV as malicious. It contains a 'Clipboard command execution lure' heuristic, indicating it instructs the user to copy and paste content into a shell. This is a common technique to bypass initial security measures and download further malicious content. The document also contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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 https://krisoc.ru/uplcv?utm_term=windows+server+2019+kms+activation
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075419edc2ab---44216271594.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/9754ef9657160667b54884542aec7cdd/8463158785.pdf
- http://joelcsimonesq.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/13555752919.pdf
- http://bakoca.hu/files/file/gumobanirejivobobog.pdf
- http://fcv-bo.org/data/fcv-bo/userfiles/file/jeboji.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/2tonsd5gkl4nld7j9gkodupniv/66784526902.pdf
- http://intestinalfortitude.org/clients/0/0c/0cf504f131cb0201443a7bd449519f4a/File/54454035253.pdf
- https://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/fn98k47o70bildnqfa7kqqqbmj/visavutukigelunuziriloguk.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/mabr5u1htq72upi52j7gu5gr1d/87262420220.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160815bb889bac---12279767655.pdf
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/3c074358f43910af19a7f73d04974a38/53183648980.pdf
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/7g07p02qlei69lrd9o4bmeuva2/puxexefosovuxavotixoxowiv.pdf
- http://3suntech.com/UploadFile/file/20210605024426979.pdf
- http://oticonshop.net/ckfinder/userfiles/files/92023084951.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/am9klv6perfnte38tb45gtcmj3/25212056656.pdf
- http://akicgiyim.com/userfiles/file/vetivojufajurijaj.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/10371738e94f944b89e84aa2ece0b878/jalajuz.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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e874.bin9e8301a812e0963997f2c69c75bfd39e7fcc44359b8a43baf6657440e065e79d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE874 | 2960 bytes |
font_01_sfnt_off0000f2e4.binf09916b371645d750cfefdd2b1f4d9ad60ad6df1beda029dbcabf62a5bf6f682 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2E4 | 5764 bytes |
font_02_sfnt_off00010692.bina0216f401617685ea0bf979607ade85f631ee7d2140cd4a7c7886efbda79f4e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10692 | 10928 bytes |
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