MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting it's part of a link farm designed to redirect users to malicious sites. The presence of external URIs and the overall structure point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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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://oniceh.ru/uplcv?utm_term=all+about+pragmatics
- http://105chers.netsociality.com/upload/files/67181969651.pdf
- http://jmlukanich.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sipifetokilofinavivobeve.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614205552cc19---80247783308.pdf
- http://kstarsmall.net/userfiles/file///85286059727.pdf
- http://nguyenphat.com/public/default/ckeditor/files/kufivarufifexupudab.pdf
- http://www.shjkyq.com/up_files/FCK/file/jotig.pdf
- http://gemaeldeundobjekte.de/uploads/files/netusasiz.pdf
- https://www.sudoku-cool.com/ckfinder/userfiles/files/sevema.pdf
- https://bcbc3399.com/upload/files/44257243794.pdf
- http://knx-shop.ru/admin/ckfinder/userfiles/files/94467100293.pdf
- http://104408017.linker.tw/files/sevarub.pdf
- https://bocion.com/ckfinder/userfiles/files/30761431313.pdf
- https://egc.ecrom.work/syo/files/79945093106.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee246c12bd---gexukunojolavebive.pdf
- http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/76428394633.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146c51115b76---bivexog.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613c64032d6f0---78014026701.pdf
- https://toppelletmachine.com/d/files/fajeturejaguruj.pdf
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/9687d6a1250de34933ffdad11dda613a/nakawobadapejefu.pdf
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/34592716030.pdf
- http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/95619065833.pdf
- https://fajanav.com/aym_image/files/50056901626.pdf
- http://abwjefferson.com/uploads/files/jawulaluturividowofewab.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_off0000d607.bin08675759bd9fe42d7e593ece5f30b159818400b4400de78415ca3758145a699f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD607 | 16828 bytes |
font_01_sfnt_off00010138.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10138 | 16792 bytes |
font_02_sfnt_off0001194f.bin543321d4f4bf2e5f2b4598925dd3456a2289267d2044b03bfb1c42f54ea958ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1194F | 10704 bytes |
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